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Jobs for the Heartland: Place-Based Policies in 21st-century America.

Do America's profound spatial economic disparities require spatially targeted policies? Traditionally, economists have been skeptical about these policies because of a conviction that relief is best targeted toward poor people rather than poor places, because incomes in poor areas were converging toward incomes in rich areas anyway, and because of fears that favoring one location would impoverish another. In this paper, we argue for reconsidering place-based policies, because (i) convergence has stalled or reversed in recent decades; (ii) social problems are increasingly linked to a lack of jobs rather than a lack of income, and subsidizing job creation may be easier at the place level than at the person level; and (iii) a modest body of evidence suggests that increasing the demand for labor has a materially greater impact on nonemployment in depressed areas. Place-based policies can take the form of more generous employment subsidies in depressed areas, which provide implicit insurance against place-based shocks but distort migration decisions, or equivalently generous policies that tilt existing programs to encourage employment in areas with more joblessness.

America's regions have long displayed enormous economic disparities, but for most of the 20th century, poorer states were catching up rapidly (Barro and Sala-i-Martin 1991) and high local unemployment rates did not persist (Blanchard and Katz 1992). Migration flowed to high-income regions, and capital was attracted by low wages in poorer areas. Both flows helped incomes to converge.

In recent decades, regional income convergence has slowed or even reversed (Berry and Glaeser 2005; Moretti 2011), and place-based non-employment has become durable. Over the past 40 years, migration has stopped flowing to high-income regions and has declined more generally (Ganong and Shoag 2017). Economic divisions across space loom as the backdrop to our political divisions (Autor and others 2017).

In section I of this paper, we document the hardening of America's geographic divisions, and the rise of nonemployment among men age 25-54, who are the focus of this paper. Many measures of well-being suggest that not working is a far worse outcome than low-income employment, which motivates our focus on employment rather than income. (1) Regional disparities in joblessness are large. In 2016, the nonemployment rate for men age 25-54 was over 35 percent in Flint, Michigan, and was 5 percent in Alexandria, Virginia.

We divide the United States into three regions based on year of statehood: the prosperous coasts, the western heartland, and the eastern heartland. The coasts have high incomes, but the western heartland also benefits from natural resources and historically high levels of education. America's social problems--including nonemployment, disability, opioid-related deaths, and rising mortality--are concentrated in America's eastern heartland, states from Mississippi to Michigan, generally east of the Mississippi River and not on the Atlantic Coast. The income and employment gaps between the three regions are not converging, but instead seem to be hardening into semipermanent examples of economic hysteresis.

The European Union has long embraced place-based policies that target distressed areas, but U.S. national policy has typically adopted geographic uniformity. Place-based policies are popular with place-based politicians, but economists often emphasize that a national perspective pushes toward helping poor people, not helping poor places. In section II, we analyze the economic rationales for place-based policies.

An abundant body of literature documents agglomeration economies and human capital externalities (Duranton and Puga 2004; Combes, Duranton, and Gobillon 2008; Moretti 2011). Although such externalities suggest market failure, they do not imply any particular spatial policy. Both New York and Appalachia might benefit from more economic activity and more skilled residents, but we do not know if it is optimal to shift skills and density from New York to Appalachia or vice versa.

A second justification for place-based policies is to insure residents against place-based economic shocks, just as the federal government already provides some insurance against place-based natural disasters. In 1969, Detroit residents had higher incomes than Boston residents, but today Boston residents are 40 percent wealthier. (2) But smoothing income differences across states would only modestly reduce income inequality. Controlling for states explains only 1.1 percent of the variation in income levels; even the smaller Public Use Microdata Areas (PUMAs) can explain only 6.6 percent of the variation in income. Smoothing income differences across smaller geographic areas would distort migration, raise housing costs in low-income areas, and potentially even concentrate poverty.

The most compelling case for place-based policies is that one-size-fits-all interventions are woefully inappropriate for regional economies as diverse as Appalachia and Silicon Valley. Subsidizing employment, either at the individual or firm level, makes little sense in an economy as robust as that of the San Francisco Bay Area, where the restricted housing supply limits future population growth. If nonemployment is much more sensitive to subsidies in West Virginia, then larger proemployment subsidies in that state seem likely to reduce suffering more.

Place-based policies need not mean large-scale transfers to distressed areas, but instead the tailoring of policies to particular locales. For example, a bevy of current social welfare policies--including the Housing Choice Voucher Program (Section 8), the Supplemental Nutritional Assistance Program, and disability insurance--currently implicitly tax earnings. The implicit taxes on housing vouchers and food stamps could be reduced for low-income workers from 30 percent to 20 percent in areas where employment is particularly responsive to the returns to working.

Indeed, even the most die-hard opponent of place-based redistribution should see the logic of tailoring federal policies to local labor market conditions. Standard social policy rules, like the Baily--Chetty formula for unemployment insurance (Baily 1978; Chetty 2006), depend on parameters that differ across space. If nonemployment is particularly harmful in one location and particularly sensitive to public policies, then that die-hard opponent could still support a place-based, revenue-neutral twist that reallocates funds from benefits that discourage working to benefits that encourage employment in that area, without encouraging migration or raising housing prices.

We use a modified Baily--Chetty formula to analyze benefits for the not working and for marginal workers. The formula depends on two parameters: the ratio of the externalities associated with nonemployment to the wages of low-income workers, and the heterogeneous response of employment rates to policy interventions. In section III, we look for heterogeneous responses by testing whether exogenous shocks reduce nonemployment more in high nonemployment states.

We first use industrial-composition Bartik shocks. These shocks do reduce not-working rates more in states where the average not-working rate is higher. China trade shocks--as identified by David Autor, David Dorn, and Gordon Hanson (2013)--also have an impact on not-working rates more in commuting zones with historically higher levels of non-employment. Military spending shocks, used by Emi Nakamura and Jon Steinsson (2014), also have a larger impact on not-working rates in states where the average not-working rate is higher, but the difference is statistically insignificant. Our results are far from definitive, but they do support the perfectly unsurprising view that you can reduce nonemployment more in places where nonemployment is currently high. We hope that future research will do more to examine spatial heterogeneity in labor supply elasticities, and the regional heterogeneity of labor markets more broadly.

Section IV follows Robert Gordon (1973) and focuses on the externalities of nonemployment, which include fiscal costs to the state, costs borne by friends and family, and possibly also spillovers that encourage more nonemployment (Topa 2001). We calibrate these costs to range from 0.21 to 0.36 times the typical wages earned by low-income workers, but recognize that these numbers are quite debatable. Using these estimates, section V calibrates our model, which suggests that the generosity of pro-employment programs relative to nonemployment benefits should be higher in West Virginia than in Nebraska. The modified Baily--Chetty formula also implies that subsidies should skew more toward employment in regions of high employment elasticity when the coefficient of relative risk aversion is low.

Section VI turns to a taxonomy of place-based policies, and discusses their costs and benefits--including distorted mobility, capitalization, and other deadweight losses. (3) Empowerment Zones subsidize employment in high-poverty areas, and Matias Busso, Jesse Gregory, and Patrick Kline (2013) find them to be effective. (4) Attempts to use infrastructure to help depressed cities, such as the Detroit People Mover, have had results that are far less encouraging. But infrastructure, like that built by the Tennessee Valley Authority, that actually delivers a scarce and enormously valuable resource, such as electricity, can have large economic effects (Kline and Moretti 2013). Conversely, the Appalachian Regional Commission, which provides a potpourri of placed-based support, including highways, seems to have done little to change the region's fortunes.

We end with a discussion of plausible policies that account for spatial heterogeneity in employment responses. We discuss strengthening employment subsidies, either to the firm or to the worker, in states with high non-employment. The employment effects of paying subsidies to the firm, rather than the worker, will be stronger if workers' wages face a lower minimum wage bound. We discuss tilting the incentives that community colleges face to provide job counseling and employment-appropriate vocational skills.

A wide body of literature suggests that education combats joblessness at both the individual and regional levels, and investing in education is a natural complement to subsidizing employment. Finally, we mention policies that might have benign spatial effects even if they are apparently neutral. A flat per-dollar employment subsidy would presumably have a larger effect in low-cost states where prices are lower.

I. The Geography of Jobless America

A belief in individual upward mobility reduces the desire for income redistribution (Alesina, Miano, and Stantcheva, forthcoming). Similarly, a belief in the upward mobility of regions limits the demand for place-based policies. America has long tolerated dramatic economic differences across space, partially because people regularly moved from poor places to rich places and capital flowed freely from high-wage to low-wage areas. In this section, we document five trends suggesting that this mobility has fallen considerably and that America appears to be evolving into durable islands of wealth and poverty. At the broadest level, the nation can be divided into its wealthy, costly coasts; a reasonably successful western heartland; and a painfully jobless eastern heartland. These differences are driven mainly by historical differences in human capital and the economic dislocation caused by deindustrialization.

I.A. The Closing of the Metropolitan Frontier

The United States has long been a nation with enormous spatial differences in income. In 1950, 18 states in the continental United States had per capita earnings that were double the per capita earnings of Mississippi. In 2016, Mississippi is still the nation's poorest state, but there is no state with double its per capita income. Many of Mississippi's poorest residents went north to the factories of Chicago and Detroit (Smith and Welch 1989). Industry flowed south, encouraged by probusiness policies, like right-to-work laws (Holmes 1998). America's western frontier may have closed at the end of the 19th century, but there was still a metropolitan frontier where workers from depressed areas could find a more prosperous future.

Five facts collectively suggest that this geographic escape valve has tightened: (i) declining geographic mobility, (ii) increasingly inelastic housing supplies in high-income areas, (iii) declining income convergence, (iv) increased sorting by skills across space, and (v) persistent pockets of nonemployment. Together, these facts suggest that even if income differences across space have declined, the remaining economic differences may be a greater source of concern. Consequently, it may be time to target pro-employment policies toward the most distressed areas.

Figure 1 shows that between 1950 and 1992, intercounty mobility never dropped below 6 percent. Since 2008, the share of U.S. residents who moved across counties never exceeded 3.9 percent. The first steep drop occurred between 1990 and 1995, and then another dip occurred after 2005. This decline in cross-county mobility is mirrored by the drop in the within-county mobility rate, which fell from over 13 percent in the 1950s to 7 percent. Declining mobility appears among both renters and owners; the change is not merely underwater borrowers held in place by their mortgages.

The great wave of postwar mobility included the Great Migration of African Americans north, the nationwide move to the Sunbelt, and massive suburbanization. In these previous migrations, as had been true throughout almost all of American history, housing was supplied abundantly to meet migrants' demand. Suburbanization itself can be seen as a massive shock to housing supply, generated by cars and highways (Baum-Snow 2007), that enabled African Americans coming north to occupy urban apartments (Boustan and Margo 2013). The growth of the Sunbelt reflects a combination of economic resurgence, the taste for warm weather, and few restrictions on the mass production of housing (Glaeser and Tobio 2008).

Moreover, the African American migrants to the north had little to lose by departing the Jim Crow South. As David Schleicher (2017) emphasizes, poorer Americans today are held in place by public benefits, such as housing vouchers, which can be difficult to carry across state or even county lines. Ostensibly, such federal programs as Medicaid and Temporary Assistance for Needy Families are administered at the state level. A move across states requires a new application that may not be approved.

Migration has both declined and become less directed toward high-income areas (Ganong and Shoag 2017). The unskilled flooded into high-income areas between 1940 and 1960, presumably bringing wages down, but they did not do so between 1980 and 2010. Mai Dao, Davide Furceri, and Prakash Loungani (2017) show that interstate migration due to labor market shocks has declined since the 1990s. Mike Zabek (2018) shows that stronger local ties to a region lead to lower migration rates in response to labor market shocks.

Low-income workers still receive significant wage gains from migrating to high-income areas, but the housing-related costs of moving to these areas have grown. Housing costs within skilled cities have risen particularly dramatically (Glaeser and Saiz 2004). Between 1978 and 2017, real housing prices in Detroit were relatively flat according to the Federal Housing Finance Agency's repeat sales index, while real housing prices increased in Boston by 200 percent and in San Francisco by 300 percent. Many authors associate higher housing prices with stringent land use regulations, especially in better-educated communities (Gyourko, Saiz, and Summers 2008; Glaeser and Ward 2009). (5)

Throughout most of U.S. history, economic productivity has been accompanied by a near-elastic housing supply. The settlers who moved to richer, western agricultural land in the 19th century built their own inexpensive, balloon-frame homes. The farmers and immigrants who came to Chicago in the 19th century readily piled into overcrowded tenements. New York City built over 100,000 units annually in the early 1920s, when the city experienced its post-World War I boom. Silicon Valley exploded as an engine of American innovation, but it is practically synonymous with stringent land use restrictions, including some areas with 60-acre-minimum lot sizes. Chang-Tai Hsieh and Enrico Moretti (2017) estimate that these restrictions have led to a misallocation of labor that has significantly reduced America's overall GDP.

An additional barrier to interstate migration has been the rise of occupational licensing laws, which restrict the movement of workers across state lines. Janna Johnson and Morris Kleiner (2017) find that individuals in occupations with state-specific licensing requirements have a 36 percent lower rate of interstate migration than comparable workers in other occupations.

The skilled do still move toward higher-skill, higher-wage areas, helping to ensure that skilled areas are become more skilled over time. This is illustrated in figure 2, where we see that prime age male migrants are significantly better educated than the nonmigrant population in the PUMA that they left.

Christopher Berry and Edward Glaeser (2005) report a robust correlation between the change across metropolitan areas in the percentage of the population with a college degree and the initial share of the population with a college degree in the 1970s, 1980s, and 1990s. The increasing segregation of skilled labor matters because the skill level of a locality is strongly correlated both with the levels of earnings for nonskilled workers (Moretti 2004), and with longer-term growth of incomes and population (Glaeser and Saiz 2004).

Increased geographic sorting by skill probably reflects a combination of restrictions that stymie the construction of affordable housing and workplace complementarities between educated employees. (6) The innovations generated by highly skilled workers today appear increasingly to demand the labor of skilled workers rather than unskilled workers. Henry Ford's automated assembly lines depended on tens of thousands of less-skilled workers, and hence his skills strongly complemented less-skilled labor. Bill Gates's innovations primarily employed highly skilled software programmers.

Declining in-migration to high-wage areas has been accompanied by a decline in the convergence of incomes across states and metropolitan areas. Robert Barro and Xavier Sala-i-Martin (1991) document the striking convergence in per capita income levels across U.S. states between 1880 and 1980. This convergence is the backdrop for the shrinking gap between incomes in Mississippi and the rest of the United States. Berry and Glaeser (2005) show that by the 1990s, changes in metropolitan area incomes were no longer negatively correlated with initial per capita incomes. Peter Ganong and Daniel Shoag (2017) find that the relationship between state-level changes in per capita and initial per capita income was much weaker from 1990 to 2010 than from 1940 to 1960.

Figure 3 shows the convergence of log median personal incomes across 538 PUMAs between 1980 and 2010 for prime age men. The coefficient is -0.16, which is far less than the -2.4 coefficient that Ganong and Shoag (2017) report for states between 1940 and 1960. Even that modest income convergence may be a spurious reflection of measurement error in the 1980 variable. When we instrument for log median income using the log of the 10th and 90th percentiles of income in 1980 (the R- of the first-stage regression is .85), we estimate

[mathematical expression not reproducible]

Robust standard errors clustered by state are in parentheses. It seems plausible that true income convergence has also disappeared at the PUMA level.

I.B. The Rise of Joblessness among Men

The growth of geographic barriers within the United States has coincided with the dramatic increase in not-working rates among prime age men, which primarily reflects men leaving the labor force. The share of prime age men who are not in the labor force has grown from under 4 percent during the 1950s to over 10 percent today. (7)

Throughout this paper, we focus on the total rate of not working among prime age men, defined as men age 25-54, rather than unemployment or labor force participation. We define the nonemployment rate (or not-working rate) as the share of men who are not currently employed, or 1 minus the employment-to-population ratio for prime age men. We take the view that the distinction between unemployment and labor force nonparticipation is relatively arbitrary because almost all the not working would presumably work if the price were right (Clark and Summers 1979). In many cases, those who are not currently looking for a job will nevertheless return to employment in a short period of time.

When we examine prime age men entering the Current Population Survey (CPS) from 2014 to 2016, whose monthly responses can be linked for all eight months, we find that over half of men who left and reentered employment during the 16-month CPS window recorded at least one month that they were not in the labor force. (8) John Coglianese (2017) refers to these men who leave and reenter the workforce as "in-and-outs," and we believe it is important to distinguish these men who are temporarily absent from the labor force from the long-term not working. In addition, the expanding role of disability insurance relative to unemployment insurance (Autor and Duggan 2003) may mean that an increasing share of individuals who would once have classified themselves as unemployed now list themselves as out of the labor force.

Olivier Blanchard and Lawrence Katz (1992) show a practically nonexistent relationship between the unemployment rate in 1975 and the unemployment rate in 1985 across states. This nonrelationship supports the idea that geographic differences in the not-working rate are a temporary phenomenon that is rapidly undone through migration and cyclical shocks. Figure 4 shows the relationship between the prime age male not-working rate in 2010 and the prime age male not-working rate in 1980 across PUMAs. The correlation between the two rates is .80. Moreover, the relationship shows diverging not-working rates because the coefficient on the 1980 not-working rate is 1.10, which means that the growth in the not-working rate is positively associated with the initial not-working rate.

Figure 5 shows the time series of not-working men split into three categories: unemployed (not employed and actively seeking work), not in the labor force but wanting a job, and not in the labor force and not wanting a job. (9) The share of prime age men who are not in the labor force and do not want a job shows a steady upward trend. The share that is unemployed undulates, severely peaking at 9 percent during the Great Recession. The third category, not in the labor force but still wanting a job, has held steady, at around 2 percent.

We prefer to focus on the distinction between the long-term and short-term nonemployed, where being long-term nonemployed is more associated with leaving the labor force and being short-term nonemployed is more typically associated with unemployment. Figure 6 includes both the total not-working rate and the share of men who have been without a job for over a year, using data from the CPS's Annual Social and Economic Supplement (ASEC).

I.C. The Misery of Joblessness

We focus on joblessness among prime age men, rather than income inequality, because we see it as a far greater problem. There is significant correlational evidence suggesting that misery haunts the lives of the long-term not working. Figure 7 shows life satisfaction rates by work status, using data from the Behavioral Risk Factor Surveillance System.

In figure 7, we compare the not working with the employed with annual household earnings of more than $50,000 per year, the employed with annual household earnings of $35,000 to $50,000 per year, and the employed with annual household earnings of less than $35,000 per year, and show the share of the male population in each group that reports a low level of life satisfaction. This number is quite low among those earning more than $35,000 per year. Low life satisfaction rises for those who are employed but earning less than $35,000 per year, but low life satisfaction is much higher among those who are not employed. Almost 20 percent of the not working in the eastern heartland report a low level of life satisfaction.

Andrew Clark and Andrew Oswald (1994) report that unemployment has a much more negative effect on happiness than low earnings. Andre Hajek (2013) estimates the relationship between unemployment and unhappiness with individual fixed effects and finds a significant negative effect, especially if the unemployment is described as involuntary. Rainer Winkelmann (2014) similarly finds that happiness drops significantly after an individual becomes unemployed.

Happiness is not equivalent to utility. Parents of young children, for example, are typically less happy, but they are presumably compensated in other ways. (10) Yet it is hard to see what benefit is offsetting unhappiness among the not working.

Nonemployment is also strongly correlated with mental health problems. A large body of literature, surveyed by Stephen Piatt (1984), connects suicide and unemployment. More recent studies include those by Augustine Kposowa (2001) and by Tony Blakely, Sunny Collings, and June Atkinson (2003). Over 30 percent of the not working report having more than 10 days of poor mental health in the past month. Once again, the gap between the not working and the poor-but-employed is much larger than the gap between poor and rich employed workers.

Opioid use is another marker of pain associated with nonemployment, as highlighted by Alan Krueger (2017). Like suicide, opioid use may be another consequence of nonemployment. Because opioids can also lead to addiction and death, they are an added cause of social pain.

I.D. The Geography of Joblessness

We now turn to the geography of joblessness in the United States. We begin with two maps of the United States showing the geography of prime age male nonemployment in 1980 and 2015. The 1980 data come from the decennial census, and the 2015 data are based on three years of the American Community Survey (2014-16)." We use consistent PUMAs.

Figure 8 shows that fewer than 10 percent of men were not employed in 1980 in much of the western United States and in the northeastern corridor. Coastal California and much of the Midwest and Southeast had non-employment rates between 10 and 15 percent. Rates over 15 percent were only seen in Appalachia and a few isolated parts of lower-density America, including a PUMA in Arizona, upstate New York, and a few parts of California.

Figure 9 shows that in 2015 the nonemployment rate has risen almost everywhere, but people in the northeastern corridor and much of the western United States still remain relatively more employed. Nonemployment is high in the Far West--except for the areas around Los Angeles, San Francisco, and Seattle--and in a great swath of Middle America that runs from Louisiana up to Michigan. Appalachia remains a place of tremendous economic dysfunction.

Women are more likely to work in northern areas, whether in the East or the West, and are less likely to work in southern areas. (12) If we regress the change in prime age male not-working rates on the change in prime age female not-working rates at the PUMA level between 1980 and 2010, we find that the [R.sup.2] is only .094. These differences seem as likely to be driven by cultural norms as by economic distress. The shifts in male and female employment are not particularly correlated with one another, meaning that the declining male employment rates reflect economic distress that does not seem to be offset by increases in female labor force participation.

Figure 10 looks at the long-term (more than 12 months) not-working rate, and shows that there has also been strong divergence since 1980. For every extra percentage point of men who were long-term not working in 1980 (the first year we can calculate this number), the growth in long-term not working increases by 0.84 percentage point between 1980 and 2014." Robert Hall (1972) documented that unemployment was slightly higher in higher-wage cities, suggesting that workers were being compensated for a greater risk of being unemployed; but today, the relationship between non-employment and income is strongly negative.

These previous maps inspire our division of America into three groups: the coastal states, the eastern heartland, and the western heartland. The PUMA maps suggest that many states could likewise be usefully divided. Inland California looks quite different from the San Francisco Bay Area. Yet many data sources contain only state identifiers, so we use state boundaries. We refer to states formed before 1840 as the eastern heartland, and to those formed after 1840 as the western heartland. (14)

The coastal states have seen their real economies grow by 342 percent from 1965 to 2016. The western heartland has grown by 475 percent over the same period. The eastern heartland has experienced the most sluggish growth, at 187 percent. (15)

The parallel growth in GDP between the coasts and the western heartland can be divided into growth in GDP per worker and growth in the number of workers. Although per capita GDP growth has been faster on the coasts, employment growth has been much faster in the western heartland. The difference may reflect the far more elastic housing supply in the western heartland, which welcomes workers in response to rising productivity.

The trends in GDP are matched by the trends in the not-working rate. Figure 11 shows the prime age male not-working rate since 1980. Before the recession of the early 1980s, nonemployment was roughly comparable on the coasts and in the eastern heartland. The western heartland had the lowest levels of not working. Since 2000, this ordering has been stable. The not-working rate has been highest in the eastern heartland and lowest in the western heartland; the coasts are in between.

Figure 12 shows mortality rates between the three regions for prime age men. Between 1970 and the early 1980s, mortality fell smoothly for all three regions and the ordering was stable. The western heartland was the healthiest region of the country. During the early 1980s, male mortality rose on the coasts, partially reflecting the scourge of AIDS. Since the 1990s, the eastern heartland has been the outlier, with relatively high, and even occasionally rising, levels of mortality for prime age men. If we seek to understand the striking fact of rising prime age male mortality, as noted by Anne Case and Angus Deaton (2015, 2017), we need to look at the eastern heartland.

Figure 13 shows county-level opioid prescriptions per capita across the United States. These are particularly high in the low-employment areas of the eastern heartland.

A final social problem is imprisonment, which effects a significant share of the male population in many states. (16) Until the mid-1990s, imprisonment rates were generally higher on the coasts than in the western heartland. Between the mid-1990s and 2010, the western heartland had the highest imprisonment rate. Now, both heartlands have imprisonment rates that are dramatically higher than the imprisonment rates on the coasts.

I.E. Why Does the Nonemployment Rate Vary across the United States?

Katharine Abraham and Melissa Kearney (2018) credit labor demand-side factors (for example, competition with China and robots) with one-third of the decline in the male employment rate since 1999. Supply-side factors account for less than one-tenth of the change, but much of the overall trend remains unexplained. At the national level, since 1999 wages at the bottom of the distribution (the 10th percentile) have been higher than they were in the 1970s, so it would seem that the rising rate of nonemployment must at least partially reflect shifting labor supply. (17) Although perhaps not all of those not working could get a job paying $8.90 per hour in 1999, many surely could and chose not to work for such low earnings. Mark Aguiar and others (2017) suggest that the labor supply has shifted because of better entertainment options, but the willingness to work at low wages may have also fallen because of a more generous public and private safety net (for example, working spouses) or changing preferences.

However, nonemployment is a lower-tail phenomenon that may be more sensitive to the variance than to the mean of wage across space. If two separate regional markets experience a mean-preserving wage spread, then nonemployment in the low-wage market may rise dramatically while non-employment in the high-wage area both starts and stays low. Even if the aggregate pattern shows constant wages and rising nonemployment, which is most compatible with a labor supply shift, regional patterns may be more compatible with shifting labor demand.

Figure 14 shows a -.39 correlation between changes in log median wages at the PUMA level and changes in the male nonemployment rate. Moreover, many of the PUMAs with sharply rising nonemployment rates have also experienced declining wages. Together, these facts suggest that labor demand shocks are playing a significant role in explaining the geography of joblessness.

What determines the spatial heterogeneity in labor demand? Deindustrialization has been a particularly adverse shock for less-skilled men, but that has been somewhat ameliorated in high-skilled areas, like Seattle, by reinvention based on knowledge-intensive industries. Consequently, the six regressions given in table 1 test whether area-level education and industrial history can explain the heterogeneity in joblessness. In regression 1, we find that 34 percent of the variation in male nonemployment rates across PUMAs in 2010 can be explained by two historical education variables: the share of the men without a high school diploma, and the share of men with a college degree in 1980. This effect combines both the direct impact of education and any of the human capital externalities, as identified by James Rauch (1993) and Moretti (2004).

In regression 2, we include the share of prime age male workers in the PUMA in durable and nondurable manufacturing in 1980, and the [R.sup.2] rises to .409. (18) A history in durable manufacturing, which was particularly prevalent in the eastern heartland, predicts more nonemployment today. (19) A history in nondurable manufacturing, which was more prevalent in the western heartland and the Southeast, predicts less nonemployment. Regression 3 shows the impact of adding two state variables (January and July temperatures), which raise the [R.sup.2] to .474. Higher January temperatures are associated with more nonemployment, while higher July temperatures are associated with less nonemployment (Boldin and Wright 2015).

The next three regressions in table 1 show the impact of the same variables on median wages. Almost universally, the same variables that are associated with higher median wages are also associated with lower not-working rates. The one prominent exception is durable goods manufacturing, which is associated with higher nonemployment rates and higher wages. One interpretation of this fact is that durable manufacturing industries developed the largest gap between wages paid to incumbent workers and the reservation wages of not-working outsiders.

Can state policies explain the differences in nonemployment across the United States? In the six regressions in table 2, we connect joblessness with three different state-level policy measures: corruption convictions, right-to-work laws (following Holmes 1998), and occupational licensing laws (which may capture local opposition to entrepreneurship). (20) We do not use instruments, and we are well aware that few of our variables are truly exogenous. These regressions use individual-level data, with standard errors clustered at the state level.

Regression 1 shows the raw not-working rates between the three regions, controlling for nothing else. In regression 2, we control for individual education and historical area education, which wipes out the not-working gap between the eastern heartland and the coasts, but makes the gap between the western heartland and the coasts larger.

In regression 3, we also control for three state variables: corruption convictions, right-to-work laws, and the share of the population that has an occupational license. None of the variables has a statistically significant effect, and they do little to explain the differences between the western heartland and all other regions.

The final three regressions in table 2 repeat this analysis for 1980, 1990, and 2000. With historical perspective, the western heartland's gap looks unusually large. In 2000, both the eastern and western heartlands have lower not-working rates than the coasts, when we control for these characteristics. In 1980 and 1990, the regional differences look relatively small.

Individual and historical area education have persistent and strong negative effects on not working. From 1980 to 2000, the not-working rate was lower in right-to-work states. Corruption was positively associated with the not-working rate in 1990 and 2000. Occupational licensing has been positively associated with the not-working rate in every year.

The strong correlation between joblessness and education supports the common view that improved schooling is one way to address under-performing primary, secondary, and postsecondary schools in the American heartland. Community colleges are particularly natural institutions for delivering employment-related skills; and early childhood programs have been found to be particularly effective. We now discuss place-based, employment-oriented policies, which we see as a complement to, not a substitute for, education reform. (21)

II. The Economic Rationales for Place-Based Policies

Standard locational externalities, including agglomeration economies and human capital externalities, imply that a decentralized spatial equilibrium may not be a Pareto optimum. But the large empirical literatures on such spatial spillovers provide little guidance about where these externalities are likely to be larger. Place-based policies can also insure against place-based shocks. Places may be useful tags for redistribution, which enable policymakers to rely less on effort-distorting, income-based redistribution. The largest weakness of equity and insurance justifications for place-based policies is that relatively little income variation occurs across, rather than within, states. Focusing on small geographies improves targeting, but also increases the downsides of place-based redistribution: capitalization of the benefits into housing costs and distorted migration.

The best case for place-based policies exists when spending in some areas generates a much bigger behavioral response than in other areas. If the supply of workers in the labor force is more elastic in some areas than in others, devoting more federal resources to that area will do more to reduce the not-working rate. When employment responses differ across space, welfare gains can be achieved, even without extra transfers to that area, by redirecting existing federal transfers. For example, reallocating Medicaid spending to employment subsidies may be welfare-improving in areas with a higher employment response to the effective wage.

II A. The Efficiency Rationale for Place-Based Redistribution

The existence of agglomeration economies and congestion externalities means that local areas may have too many or too few people. To see this point, assume that there are only two regions in the economy, and assume that region 1 is the wealthier region. (22) A totally homogeneous national labor force ([N.sub.T]) is divided into the population of the two locales ([N.sub.j] for j = 1, 2). Welfare in each region is a function of the population size, denoted [U.sub.j]([N.sub.j]).

A spatial equilibrium requires that utility levels are equalized between the two regions, so [U.sub.1]([N.sub.1]) = [U.sub.1]([N.sub.2]). A social welfare planner who chooses populations to maximize aggregate welfare, [N.sub.1][U.sub.1]([N.sub.1]) + [N.sub.2][U.sub.2]([N.sub.2]), would set [U.sub.1]([N.sub.1]) = [U.sub.2]([N.sub.2]) + [N.sub.2][U'.sub.2]([N.sub.2]) - [N.sub.1][U'.sub.1]([N.sub.1]). The extra terms [N.sub.2][U'.sub.2]([N.sub.2]) - [N.sub.1][U'.sub.1]([N.sub.1]) imply that the spatial equilibrium may not be a social optimum. Yet the fact that the competitive equilibrium is not socially optimal does not justify targeted regional policies if we do not know the direction of the problem. When we discuss the empirical research on agglomeration below, we will conclude that we have little confidence in our estimates of heterogeneity in agglomeration effects. Hence, agglomeration-based interventions seem as likely to harm as to help.

II.B. The Insurance and Equity Rationale for Place-Based Redistribution

The simplest equity-based justification for place-based policies is that a concave social welfare function implies benefits from insuring against local shocks, or even redistributing from high-income areas to low-income areas. Redistribution based on local income differences is less justifiable when higher income levels in some areas are offset by higher housing prices. A more straightforward argument for place-based redistribution is that it provides insurance against place-based shocks, without distorting the labor supply or work effort. (23)

The strongest argument against place-based redistribution is that the correlation between place and income is relatively weak in the United States. In a regression analysis where income is regressed on region dummies corresponding to our heartland definitions, these dummies explain only 0.2 percent of the variation in income. When income is regressed on state dummies, these indicator variables explain only 1.1 percent of the variation. When income is regressed on PUMA dummies, these dummy variables explain 6.6 percent of the variation.

How big could the welfare gains be from spatial insurance across states and regions? To consider this question quantitatively, we assume that individuals just consume their income and that welfare is [y.sup.1-[gamma]]/1-[gamma], and we focus on the case where [gamma] > 1. If income is log-normally distributed, then expected welfare is equivalent to E(ln y) - 0.5([gamma] - 1)V(ln y). (24)

In our data, the mean of log income for men is 10.55. The mean standard deviation of log income within states is 1.14, and that of income across states is 0.12. Consequently, eliminating the variation in income across states would have only a small impact on welfare.

Eliminating spatial income variation would represent a real welfare gain, but it would also distort migration and capitalization. (25) The tighter the geographic targeting, the larger the share of inequality that can be eliminated. Tighter geographic targeting will also ramp up the effects on migration and capitalization. Those distortions could be reduced if payments were based on birthplace, not place of current residence, but it is hard to imagine a birthplace-based national policy. The economic case for place-based insurance is theoretically strong; but in practice, the possible effect of such a policy seems limited and likely to have pernicious side effects.

II.C. Differential Response Elasticities and Hot-Spots Policing

We now turn to the third, and we think the best, rationale for spatial policy: market failures that can most plausibly be addressed at the local level. Police departments that use hot spots target their resources toward areas where there is more crime, presumably because the impact of these resources on crime is higher in these areas. This strategy seems to be effective on both targeted areas and neighboring areas, suggesting that crime is not merely displaced to different areas (Braga, Papachristos, and Hureau 2014). We now turn to a model for place-based policies that captures the same economic logic--that resources can more effectively reduce the not-working rate when targeted toward areas with higher not-working rates.

We focus on public transfers to a population of less-skilled workers, who are on the margin of working. We assume that the United States is divided into P regions, and that marginal workers' wages equal [w.sub.p] in region p. We assume that these workers never pay taxes, and that the social planner chooses lump sum transfers, conditional on working (denoted [e.sub.p]) and not working (denoted [b.sub.p]). The monetized private benefit of not working in place p equals [b.sub.p]. Wages and other benefits are independent of public transfers, and here we ignore mobility and housing markets. (26)

Individual i's welfare is V(Earnings)--[I.sub.w][c.sub.i], where [I.sub.w] is an indicator function that takes on a value of 1 if the individual works; and [c.sub.i] is an idiosyncratic cost of working, where the cumulative density function [F.sub.p]([[??].sub.i]) denotes the share of the population in place p that has the value of [c.sub.i] < [[??].sub.i], and [f.sub.p]([[??].sub.i]) is the associated probability density function. Individuals will therefore work if and only if V([w.sub.p] + [e.sub.p]) - V([d.sub.p] + [b.sub.p]) > [c.sub.i], and we denote [c*.sup.p] = V([w.sub.p] + [e.sub.p]) - V([d.sub.p] + [b.sub.p]). We first assume that the population level of each area is fixed.

The social welfare planner maximizes expected welfare across the population less the share of the population that is not working times a constant k, which captures any nonfiscal externalities from nonemployment. The government's cost of funds equals [theta], which can be interpreted as the Lagrange multiplier on the government's overall budget constraint. Within each area, [b.sub.p] and [e.sub.p] are chosen to maximize

(1) [mathematical expression not reproducible]

For proposition 1, we assume that V(*) is sufficiently concave to ensure that second-order conditions hold:

Proposition 1. If V"(*) is sufficiently large in absolute value and [[Florin]'.sub.p]([c*.sub.p]) is sufficiently small, then both benefit levels are decreasing in both [w.sub.p] and [d.sub.p]; an increase in k causes [e.sub.p] to rise and [b.sub.p] to fall.

This proposition contains the core insurance motive for redistributing across space. Areas with lower wages should optimally receive both more benefits and a higher employment subsidy. The marginal utility of consumption for the working poor is higher in low-wage areas, and this raises the optimal employment subsidy. When the employment subsidy increases, it reduces the fiscal externality associated with nonemployment and consequently increases the optimal payment to those who do not work.

The first-order condition can also create a variant of the Baily-Chetty formula relating to the marginal utility of consumption for the employed and the jobless (Baily 1978; Chetty 2006):

(2) [V' ([w.sub.p] + [e.sub.p])/V' ([d.sub.p] + [b.sub.p]] = 1 - [[[epsilon].sup.p.sub.W] ([b.sub.p] + k - [e.sub.p])/[w.sub.p][1 - [F.sub.p]([c*.sub.p])]],

where [[epsilon].sup.p.sub.w] = [[F.sub.p]([c*.sub.p])V'( is the elasticity of the employment rate with respect to the wage, and ([b.sub.p] + k - [e.sub.p])/[w.sub.p] reflects the size of the fiscal and nonfiscal externality associated with not working relative to the wage.

Equation 2 emphasizes the optimal heterogeneity in social policy across areas, not optimal redistribution across areas. The equation implies that in areas where the elasticity of employment with respect to the wage is higher, the employment subsidy should be higher relative to the payment for the jobless.

This can be interpreted as implying that even if the current U.S. benefits system for the not working were kept entirely in place, it would be optimal to increase support for the marginally employed in places where the employment response to wages is higher. Alternatively, the equation can be interpreted to mean that it would be optimal to shift benefits from the jobless to the marginally employed in states where employment is more responsive to the fiscal returns to working.

If [[epsilon].sup.p.sub.w] = 0, then consumption is equalized between the not working and the employed. If ([b.sub.p] + k - [e.sub.p])/[w.sub.p] = 0.2, the not-working rate equals 0.2, and [[epsilon].sup.p.sub.w] = 0.25, then 1 - [[epsilon].sup.p.sub.w]([b.sub.p] + k - [e.sub.p])/[w.sub.p][1 - [F.sub.p]([c*.sub.p])] = 0.75. If utility follows a constant relative risk aversion function of 0.5, then the optimal consumption of the not working is 0.56 times that of the employed. A lower elasticity of labor response of 0.1 will imply higher levels of redistribution to the not working, so that the not working consume only 19 percent less than the employed.

These calculations suggest that small differences across space may generate large differences in the appropriate balance between employment subsidies and nonemployment benefits. In areas where the sensitivity of employment to wages is high, then subsidizing not working becomes particularly costly, when there are large externalities associated with non-employment. In areas that are close to full employment, subsidizing the poor is less problematic. In the next two empirical subsections, we discuss the evidence related to both the size of the externality and differential employment responses by place.

II.C. Mobility across Space

The previous calculations ignored mobility, which would reduce the appeal of redistribution across space but might not change equation 2. We can solve the social insurance problem in two steps: First, minimize expected social insurance payments in each location, holding expected utility fixed; and second, choose the combination of the levels of expected utility and expenditures across space to maximize aggregate social welfare, internalizing migration and capitalization effects. The procedure can be separated as long as only expected utility affects migrations, which will be true if we assume that migration decisions are made before an individual's value of ci is revealed.

Minimizing the costs of transfers and externalities [F.sub.p]([c*.sub.p])[e.sub.p] + [1 - [F.sub.p]([c*.sub.p])] ([b.sub.p] + k), subject to a fixed utility constraint [mathematical expression not reproducible], is dual to the welfare maximization problem and also yields equation 2. (27) Incorporating migration does have an effect on the overall level of welfare in each area; but it does not change the relationship between the marginal utility of consumption while working and not working. These results would, however, change if individuals observed their value of [c.sub.i] before migrating.

To formally model migration, we assume two locations and that people are endowed with a preference for the second location of [[epsilon].sub.i], which is distributed according to a cumulative density function G(*) with probability density function g(*). We ignore housing and spatial externalities and denote total spending in region p as [S.sub.p] and expected utility in each region as [U.sub.p]([S.sub.p]). The spatial equilibrium then defines a marginal migrant with a preference for location 2 of [epsilon]*, which is defined so that [U.sub.1]([S.sub.1]) = [U.sub.2]([S.sub.2]) + [epsilon]*, and the share of the population in location 1 equals G([epsilon]*).

If the social planner's cost of funds is again [theta], the overall maximization problem can be written as

(3) G([epsilon]*)[ [U.sub.1] ([S.sub.1]) - [theta][S.sub.1]] + [1 - G([epsilon]*)][[U.sub.2]([S.sub.2]) -[theta][S.sub.2]] + [[integral].sub.[epsilon][greater than or equal to][epsilon]*]. [epsilon]dG([epsilon])

This leads to two first-order conditions that can be combined to generate

(4) [[U'.sub.1]([S.sub.1])/[U'.sub.2]([S.sub.2])] = 1 - [[[epsilon].sup.S.sub.N1]([S.sub.2] - [S.sub.1])/[S.sub.1][1 - G([epsilon]*)],

where [[epsilon].sup.s.sub.N1] reflects the elasticity of mobility into area 1 with respect to area 1 subsidies, or [[epsilon].sup.s.sub.N1] = [U'.sub.1]([S.sub.1]) [S.sub.1]g([epsilon]*)/G([epsilon]*). Equation 2 then describes the structure of payments within an area, whereas equation 4 describes the structure of payments across an area.

If [[epsilon].sup.s.sub.N1] = 0 and there is no mobility response, then optimal policies equalize the marginal utility of spending across areas. If mobility is perfectly elastic, so that [[epsilon].sup.s.sub.N1] goes to infinity, then spending must be equalized across areas. For intermediate levels of mobility, there will be more spending on the area with a higher marginal utility of spending: [S.sub.2] > [S.sub.1] if and only if [U'.sub.2]([S.sub.2]) > [U'.sub.1]([S.sub.1]). This equation somewhat supports our previous discussion suggesting that redistribution across space is more likely to enhance welfare when migration is more limited.

But the larger point of this subsection is that concerns about capitalization and migration influence the expected welfare for residents of a specific area, but not the optimal ratio of marginal utility levels for the employed and the not working. If the elasticity of the not-working rate with respect to wages is higher in one place, then that place should do more to make work pay.

A final justification for targeting related to "hot spots" is that the macro-economic costs of supporting not working might be lower if we target West Virginia more than San Francisco. Phillips curve-type reasoning suggests that reductions in unemployment might increase pressure for wage-led inflation. This threat seems larger if San Francisco's not-working rate is being pushed from 5 percent to 2 percent than if West Virginia's not-working rate is being pushed from 13 percent to 10 percent.

II.D. The Downsides of Spatial Policy: Capitalization, Mobility, and Cost

As the previous discussion emphasized, two of the major downsides of place-based strategies are capitalization and distorted locational choice. If a place-based policy makes an area more attractive to a group, then that group will move into the area or bid up prices, or both, depending on the elasticity of the housing supply. The policy will have more of an impact on prices when the supply of space is inelastic. The policy will distort location more when the supply of space is elastic; but even when space is inelastic, there still can be a distortionary effect on the composition of the population.

A third major downside of spatial policy is cost, which in turn is a function of the targeting of the policy. In all three discussions, we assumed that subsidies and taxes are not well targeted within the region. A general employment subsidy has these features, as would policies that increase general labor demand in the poor region through the use of tax credits or direct government spending. Yet it is possible to imagine policies that are more directly targeted toward marginal workers. Those policies would reduce the taxes needed to encourage employment and would also dampen capitalization and migration effects, because they have an impact on a smaller share of the population.

The three motives for place-based strategies have different implications for the costs of capitalization and distorted mobility. If the point of spatial targeting is to achieve agglomeration-related benefits, then distorted locational choice is not a problem but a desired outcome. The point of the policy is to induce economic activity to relocate. Capitalization might be a slight negative, in that the property owners will reap many of the benefits, but that would not particularly undo the efficiency gains from relocation.

If the purpose of spatial targeting is to redistribute toward poorer residents, then relocation is not intrinsically desirable. Yet if we cannot determine the sign of the impact of relocating people and firms on aggregate efficiency, then we also cannot be sure whether inadvertent relocation generates welfare losses or benefits. A prominent exception to this claim is that there may be considerable downsides from concentrating poverty and nonemployment, particularly because this may cause welfare losses to the poor that undo any benefits that come from targeting resources toward a particular area.

Capitalization, by contrast, will tend to work against the redistributive benefits of targeting resources toward poorer areas. If the primary beneficiaries of these benefits are property owners, then the policy may be progressive across places but regressive within places. Once again, targeting can reduce the capitalization-related downsides of any policy.

If the goal is targeting resources against a demonstrable social problem, like nonemployment, then efficiency, not equity, is again the main objective. In this case, the redistribution to owners due to capitalization is not particularly problematic; nor are distorted locational choices. Even more broadly, the policy can be a place-based benefit shift, which fights non-employment without inducing in-migration. We now discuss the two parameters that are needed to use equation 2, our modified Baily-Chetty formula.

III. Do Employment Elasticities Differ across Place?

The theoretical case for the spatial targeting of employment subsidies depends on whether such policies have a greater marginal impact on employment in some areas. Employment subsidies could have a larger impact in distressed areas, but the opposite is also possible. Areas with high not-working rates might have social problems that lead even fewer people to be on the margin of working. Areas with high not-working rates might have extremely inelastic labor demand, so that few new jobs will be created because of a subsidy. The case for infrastructure, relative to subsidies, is stronger when private labor demand is inelastic. It is an empirical question as to whether interventions in high-poverty areas are more likely to increase the level of employment. (28)

We have three ways of testing for differential employment elasticities. First, and most obviously, we can look at the impact of labor demand shocks on the not-working rate and test for heterogeneity across space. Second, we can review the surprisingly limited body of literature on heterogeneous spatial effects of social programs on the not-working rate. And third, we can revisit the evidence presented by Nakamura and Steinsson (2014) linking government spending to GDP growth and test for heterogeneous treatment effects on the not-working rate.

III.A. The Heterogeneous Impact of Labor Demand Shocks

We first look at the impact of labor demand shocks on the not-working rate. We use a Bartik demand shock (following Bartik 1991), interacting initial industry shares with changes in national employment in the industry outside the PUMA or state, or

[mathematical expression not reproducible],

where [mathematical expression not reproducible] is employment in industry i, location s, and initial time [t.sub.0]; [mathematical expression not reproducible] is total employment in location s at initial time [t.sub.0]; and [emp.sup.US not s.sub.i,t] is the employment in industry i at time t in the United States outside location s. Thus, this shock represents the percentage growth in employment in the location that would have been predicted if the location's industries saw their employment grow at the national average rate.

We look at Bartik shocks at both the PUMA and state levels. We begin with state-level estimates over the 1977-2016 period. Regressions 1 and 2 in table 3 show the negative impact of the Bartik shock over the entire period, as expected, and that this impact is larger in states with higher initial not-working rates. Regressions 3 and 4 show that this interaction term is robust to the addition of year fixed effects. It does seem as if demand shocks are more strongly associated with changes in the not-working rate in places with higher average not-working rates.

Regressions 5 and 6 show results for housing prices. The state-level housing price index is a repeat sales index prepared by the Federal Housing Finance Agency. Regression 5 finds that positive Bartik shocks are associated with more housing price growth, suggesting that economic success is associated with higher housing costs; but the coefficient is not statistically significant. Regression 6 shows a strong positive correlation between the not-working rate and the Bartik shock. The Bartik shock has a statistically significant impact on not-working rates in states with high historical not-working rates relative to other states, but this interaction is not statistically significant for housing prices.

Regressions 7 and 8 show results at the substate level using consistent PUMAs and annual changes since 2005, because of limited data availability before that period. Regression 7 shows that the Bartik shock has a strong negative impact on the not-working rate over this period. And regression 8 shows that this effect is far more strongly concentrated in places that had high levels of not-working rates in 2005. A change of 10 percentage points in the not-working rate increases the impact of the Bartik shock by almost 50 percent relative to a zero benchmark for the not-working rate.

Finally, we examine the impact of trade shocks on prime age male non-employment, using shocks identified by Autor, Dorn, and Hanson (2013). They use the change in Chinese import exposure per worker in a region as their main measure of local labor market exposure to import competition. To address potential endogeneity issues, they instrument growth in U.S. imports with growth in Chinese imports in eight other developed economies. In table 4, we follow their approach and regress the share of not-working men or long-term not-working men on the change in Chinese imports per worker.

In regression 1, we examine the effect of a shock in Chinese imports on prime age male not-working rates. As expected, increases in Chinese import exposure are associated with an increase in the level of prime age male non-employment, and the coefficients are statistically significant. Regression 2 examines the heterogeneity of responsiveness based on initial not-working rates in 1990. We find that commuting zones with the highest levels of initial not-working rates, defined as being in the top 10 percent, experience a higher level of nonemployment in response to changes in Chinese import exposure. Regressions 3 and 4 report the same results for long-term not-working rates, and we find a similar pattern, albeit with smaller absolute increases. (29)

These results may be relatively unsurprising. A shock to local labor demand has more impact on the not-working rate in places where non-employment is high than in places that are already near full employment. Yet this heterogeneity is crucial in justifying spatially heterogeneous policies that encourage employment more in some areas than in others.

III.B. Heterogeneous Responses to Past Social Programs

There has been surprisingly limited research testing whether national changes in policy have heterogeneous treatment effects across space. For example, a large body of literature (Meyer and Rosenbaum 2001; Eissa and Liebman 1996) has examined the impact of the Earned Income Tax Credit (EITC) on employment. But we have found that none of these studies ask whether the impact of the credit was higher in places that had initially higher levels of nonemployment. David Neumark and William Wascher (2011) find interactions between the EITC and state minimum wages, but the imperfect relationship between the minimum wage and nonemployment makes these results hard to interpret.

There is abundant evidence suggesting that targeted social programs can have a large impact on the not-working rate. For example, Cynthia Miller and others (2017) test an EITC-like product, called Paycheck Plus, that is targeted toward people without children. The treatment effect of this product on employment outcomes, especially on filing taxes, is higher for people who initially earned less than $10,000 per year. We hope that future research will test more regularly for whether social interventions have more impact in some states than in others.

III.C. Spatial Heterogeneity as Identified by Nakamura and Steinsson

In this subsection, we use the shocks to federal spending that are identified by Nakamura and Steinsson (2014). (30) We focus on state-level, prime age male not-working rates as our outcome of interest, and we test for interactions between these shocks and average not-working rates within states. Nakamura and Steinsson's approach is to regress the percentage change in the employment rate within the state on the change in military spending over the same period. They instrument for the change in military spending by interacting the change in national military spending with a state dummy.

Our specification is to follow Nakamura and Steinsson (2014) and thus to regress

(5) [mathematical expression not reproducible]

where not working, refers to the not-working rate in the state, spending, refers to per capita military procurement spending, output, refers to per capita output, and [[delta].sub.t] and [[gamma].sub.t], are time and year fixed effects. We instrument for the spending variable using the percentage growth in national military spending interacted with a state dummy. This specification follows the structure of Nakamura and Steinsson's employment rate regressions.

We do this for one-, two-, and three-year changes. Our primary focus is on the interaction between military spending and the average not-working rate in the state. We implement this by generating an interaction between the spending variable and an indicator variable that takes on a value of 1 if the state is among the 25 percent of states with the highest not-working rate during the entire period. This is a conceptually different experiment from Nakamura and Steinsson's (2014) interaction between military spending and whether the state has a high not-working rate relative to its historic norm.

We show the results for the one-year change in the not-working rate in regressions 1 and 2 in table 5. Regression 1 confirms that the basic result holds for the not-working rate: An increase in military spending equal to 1 percent of output is associated with a 6.2 percent decrease in the not-working rate, although the coefficient is not statistically significant. Regression 2 shows that the coefficient on military spending is significantly larger in areas with high not-working rates and is statistically significantly different from areas with low not-working rates.

In regressions 3 and 4, we look at the two-year change in the not-working rate, which is Nakamura and Steinsson's (2014) preferred specification. The overall effect on the not-working rate is significant at the 10 percent level. An increase in military spending equal to 1 percent of output is associated with a 6.4 percent decrease in the not-working rate. The interaction with high not-working rates is small and insignificant.

In regressions 5 and 6, we look at the three-year change in the not-working rate. In this case, an increase in military spending equal to 1 percent of output is associated with a 9.6 percent decrease in the not-working rate and is statistically significant at the 5 percent level. The interaction is negative and economically meaningful in size, but it is so imprecise that we can draw little confidence from this result. Overall, these results, especially for the one-year change, suggest that military spending might be more effective in areas with high not-working rates, but they are no more than suggestive.

IV. The Externalities of Not Working

If joblessness generates no externalities, then there is no reason for the government to promote employment in our model. There may still be a redistributive or insurance motive for spatial policy, but there would be little reason to focus particularly on joblessness. In this section, we discuss the three types of externalities associated with nonemployment: pure fiscal losses from reduced taxes and increased social spending; social spillovers borne by family and friends; and not-working spillovers, where one individual who is not working increases the chance that others will not work. We do not consider externalities that could work through congestion of the employment-matching process, basically because we consider congestion to be a short-run phenomenon, while we are primarily interested in the long-run costs of concentrated nonemployment.

IV.A. Fiscal Externalities: Taxes and Spending

The most obvious externality associated with nonemployment is the cost borne by other taxpayers due to a reduction in tax revenue and an increase in public expenditures. We first focus on the income of not-working prime age men, to understand the amount of public resources they are receiving.

Table 6 shows income sources for four groups: all employed prime age men; low-income employed prime age men, who are defined as having annual family earnings below $40,000; prime age men who have not been working for less than 12 months; and prime age men who have not been working for more than 12 months. The data are averaged over the 2010-16 period and are based on the ASEC.

The missing earnings of the not working are supplemented mainly by disability payments and by the other residents of their own home. The added public expenditure going to the short-term not working relative to low-income workers is $2,300; the average added expenditure going to the long-term not working is $6,300. Averaged over the entire not-working population, the increase is $4,900, which is 26 percent of low-income individual wages in this sample.

In table 7, we break out the earnings of the long-term not working by region. The results are quite similar. The family incomes in the heartland areas are lower than in the coastal states. Disability payments are higher in the eastern heartland than in the other regions. Nowhere are family transfers a large share of total earnings.

Because disability is such an important part of public support for not-working men, we now focus on the geography and time series of disability in the United States. Figure 15 shows disability rates across the United States. We see the familiar pattern of suffering in the eastern heartland, but higher rates of being on disability certainly do not seem to generate higher earnings for the not working.

Should disability be seen as a transfer to the not working that would stop if employment increased, or a social insurance program that compensates the unlucky who receive negative health shocks and could not work in any case? Many of the not working report regular health problems. Figure 16 shows that approximately 30 percent of the not working in all three regions report 10 or more days of physical health problems over the past month.

Autor and Mark Duggan (2003) depict disability insurance as a substitute for unemployment insurance that may be better seen as a social cost of nonemployment, rather than an independent insurance program. Andreas Kostol and Magne Mogstad (2014) show that when disabled people in Norway are able to keep more of their earnings, they work and earn more. Nicole Maestas, Kathleen Mullen, and Alexander Strand (2013) examine borderline applicants for Social Security Disability Insurance, and find that employment would have been 28 percentage points higher among successful applicants if they had not received benefits. Eric French and Jae Song (2014) find a similar decrease in employment among applicants who successfully appeal their applications compared with those who are unsuccessful. These papers suggest that at least part of the disability cost should be seen as a fiscal externality generated by nonemployment.

In table 8, we turn to expenditures, using data from the Consumer Expenditure Survey. We split the population into employed, employed living alone, low-income employed (again, earning less than $40,000 a year), and the long-term not working living alone.

The not working, unsurprisingly, pay far fewer taxes than employed men generally, who pay over $15,000 annually, or employed men living alone, who pay almost $10,000. However, if the comparison is with low-income men living alone, the gulf in taxes is much smaller. The not-working men living alone contribute $566 in taxes, as opposed to $1,326 in taxes for the low-income employed living alone.

If the relevant margin is between nonemployment and average earnings, then the tax-related fiscal externality is over $9,000. If the relevant margin is between nonemployment and low-income wage labor, then the tax-related fiscal externality is much smaller, closer to $800.

Perhaps the most surprising fact is that the expenditures of the not working are much higher than their income level, and are not that much lower than the expenditures of the low-income employed, who spend $28,100 annually; the not working who live alone spend $20,700. The plausible explanations for this group's gap between expenditures and earnings include running down savings, borrowing, unreported family transfers, and perhaps even illicit earnings. Typically, the members of this group have neither significant assets nor great credit, which makes it hard to believe that past savings and borrowing can explain the gap. They also report low levels of family transfers.

The small gap in spending between the low-income employed and the not working suggests that the Keynesian externalities associated with moving the not working into low-wage jobs are small. The largest spending increase associated with employment is transportation, which may reflect the costs of getting to and from work. Annually, the employed also spend $300 more on alcohol, $1,600 more on housing, and $1,300 more on food. The greater food expenditure may reflect some eating out on the job.

Do these data suggest a large fiscal externality from nonemployment? Benefits fall by $4,900 and taxes fall by $800 when we compare the not working with low-wage workers. If half the disability payments would have been paid in any case, then the benefit gap drops to $3,200, making the total fiscal externality $4,000, which is 21 percent of the earnings of the low-income individuals.

IV.B. Social Externalities Borne by Families and Friends

We now turn to the costs of nonemployment that are borne by family and friends. A large share of the long-term not working do not live alone, but many of these men are not married. Figure 17 shows the time series of the share of men who have never been married, for the employed, the short-term not working, and the long-term not working. The three lines show parallel upward trends, with the not working always being less likely to have been married than the employed. By 2015, half of the long-run not working have never been married, and over 40 percent of the short-term not working have never been married. Less than 30 percent of the employed have never been married.

The share of the employed who are separated or divorced has risen over time. The share of the not working who are separated or divorced has remained steady, at over 15 percent, as shown in figure 18. Consequently, less than 35 percent of the long-term not working have current spouses, and the majority of their cohabitants are not their current spouses.

In many cases, the not working are actually living with their parents. Figure 19 shows the trend in cohabitating with parents by employment status. This number has always been high for the long-run not working, but it has risen in recent years to over 30 percent.

Does not working also impose externalities on family and friends who subsidize the not working? If nuclear families are unitary decisionmakers, then they are presumably making joint decisions about work and leisure. If men make independent decisions about work, and then spouses bargain ex post about the share of rents, spouses will presumably lose their share of the forgone earnings.

Some of these externalities will be offset if the not-working spouse participates more in household production, but time use surveys suggest that this is not the case. Table 9 shows the time use by employed and not-working men by region.

Working men spent about 530 minutes (8 hours 50 minutes) per day on personal care, over 90 percent of which was typically sleep. They worked an average of between 382 and 401 minutes per day, which roughly corresponds to a 6.5 hour workday, averaged over the course of the week. Notably, the men in the western heartland do seem to put in longer hours. They offset this time by spending slightly less time on leisure activities. Watching television remains the dominant use of leisure time and takes up slightly over 2 hours per day for working men.

Not-working men work about 6 hours less per day. This extra time is spent primarily on leisure activities. The not working in the eastern heartland spend over 5 hours daily watching television. There is also an uptick in computer use, including gaming, as noted by Aguiar and others (2017) and Krueger (2017).

The not-working men on the coasts and in the western heartland increase their time spent on household production tasks by 41 and 46 minutes, respectively. The modal categories for male household activities are food preparation and lawn work. Consequently, even for this group, less than one-sixth of the time freed up by not working goes to activities that benefit the household rather than private consumption. By contrast, not-working men in the eastern heartland spend only 31 more minutes on household activities than working men and 9 more minutes caring for others.

The view that spouses are not benefiting from their partners' non-employment is further supported by the correlation between not working and divorce rates. It is not merely that the not working are more likely to be divorced. Losing one's job is associated with a higher risk of becoming divorced (Killewald 2016). Although this fact has many interpretations, one view is that a male's nonemployment is a negative shock to his spouse.

We take the stand that bargaining is efficient between spouses, but not between parents and children. Consequently, for the roughly one quarter of not-working people who live with their parents, nonhousing expenditures represent an externality from nonemployment. The long-term not working who live alone have total nonhousing expenditures of $11,500. Consequently, not working generates an average family externality of $2,900, which is 15 percent of low-wage income. This figure is a crude attempt to capture intrafamily losses ("internalities") and the more general spillovers from not working that we discuss next, collectively bringing the total externality to $6,900, which is 36 percent of low-wage earnings.

IV.C. Nonemployment Spillovers

The suffering of not working will be magnified if not working spills over across individuals. This spillover could occur because an individual's not working leads to less demand for local products, which reduces local labor demand. Nonemployment could also spill over if it reduces the stigma of not working (Lindbeck, Nyberg, and Weibull 1999), if it creates a culture of not working, or if the not working enjoy being with each other. (31)

Giorgio Topa (2001) presents the now-standard model of this phenomenon. He estimates this model using tract-level data from Chicago, using a structural model. The sorting of the unemployed within the city provides evidence supporting the view that the unemployment of one person is a complement to the unemployment of his or her neighbor. Timothy Conley and Topa (2002) extend this analysis.

Clark (2003) provides evidence for the social norm hypothesis. He finds evidence that the self-reported life satisfaction of the unemployed is much higher if there is more unemployment in the individual's reference group. He also finds that individuals whose unhappiness drops more at the point of unemployment are more likely to find future employment. These findings seem to suggest that a norm of not working translates into still more long-term nonemployment. A final piece of evidence supporting the non-employment spillover hypothesis is that aggregate employment relationships with variables like tax rates are often much stronger than individual employment relationships (Alesina, Glaeser, and Sacerdote 2005), which suggests the existence of a social multiplier.

V. Calibrating the Level of Place-Based Interventions

We now use the modified Baily-Chetty formula discussed in section II, and attempt to obtain quantitative estimates of the optimal degree of place-based heterogeneity. We consider two thought experiments. First, we assume that existing benefits continue in place, and we estimate the optimal allocations of new employment subsidy across space. The relevant first-order condition for such an employment subsidy bonus is that V'([w.sub.p] + [e.sub.p])/[1 - [[epsilon].sup.p.sub.W]([b.sub.p] + k - [e.sub.p])/[w.sub.p]] must be constant over space. Second, we assume that funds are removed from current benefits received by the not working and are allocated to marginal workers. In this case, the relevant first-order condition is V'([w.sub.p] + [e.sub.p])/V'([d.sub.p] + [b.sub.p]) = 1 - [[epsilon].sup.p.sub.W]([b.sub.p] + k - [e.sub.p])/[w.sub.p][1 - [F.sub.p]([c*.sub.p])]. Our model does not incorporate wage effects of subsidies, or migration and capitalization, which could be significant by-products of the first thought experiment but not the second one. Consequently, these calculations are illustrative at best.

In both cases, we depend on place-specific estimates of the extensive margin elasticity of labor supply. Our purpose here is to emphasize the heterogeneity across the United States, not to advance the considerable literature on labor supply. (32) We use a simple empirical approach, regressing the log employment rate at the PUMA level on the log wages for the 25th percentile of employed men. We instrument for wages using Bartik shocks, as described above. The use of Bartik shocks as an instrument for labor demand is discussed in detail by Paul Goldsmith-Pinkham, Isaac Sorkin, and Henry Swift (2018). They show that using Bartik shocks as instruments is numerically equivalent to using industry shares as instruments. Therefore, identification is dependent on the exogeneity of initial industry shares.

Table 10 summarizes the results. The coefficient on log wages is small and insignificant, but the interaction of wages and the 1980 not-working rate is large and significant. The measured elasticity varies over space, with greater responsiveness in areas with high not-working rates. Wyoming had the lowest not-working rate in 1980, at 6.5 percent, and the implied elasticity is 0.05. West Virginia had the highest not-working rate in 1980, at 16.5 percent, and the implied elasticity is 0.26. We hope that this simple approach will be superseded in future work that will bring more sophisticated estimation techniques to assess the heterogeneity of labor supply elasticities across space.

We assume a constant relative risk aversion utility function, with a coefficient of relative risk aversion of [gamma]. Steffen Andersen and others (2008) estimate that this coefficient is 0.741 in laboratory experiments with relatively low stakes. Alma Cohen and Liran Einav (2007) estimate a median coefficient of relative risk aversion of 0.37 from deductible choices in automobile insurance. Robert Barsky and others (1997) find evidence for higher values using larger gambles. Some macroeconomic estimates associated with explaining the equity premium puzzle are higher still. We report values assuming coefficients of 0.5, 1.0, and 2.0.

We start with the employment subsidy formula

[mathematical expression not reproducible]

and we implement it by one region, indexed A, and with a benchmark region, indexed 0, where [[epsilon].sup.0.sub.w] = 0, and [e.sub.0] = 0. Essentially, we are asking how much larger a region's employment subsidy should be than a place where there is no employment response to wages and consequently no employment subsidy. We assume that the marginal worker's wage is everywhere fixed at [w.sub.0] and independent of the employment subsidy, perhaps because the wage is determined by the federal minimum wage. We also assume that ([b.sub.A] + k)/[w.sub.A] = 0.363. With those assumptions, V'([w.sub.0] + [e.sub.A])/V'([w.sub.0]) = 1-0.363[[epsilon].sup.A.sub.w] + [e.sub.A]/[w.sub.0][[epsilon].sup.A.sub.w]. (33)

Given our estimates of differential employment elasticity, we can then consider the optimal subsidy. For example, states such as Wyoming that have low not-working rates have an estimated elasticity close to 0, suggesting a minimal optimal employment subsidy. Areas such as West Virginia with high not-working rates, with an estimated elasticity of 0.26, have an optimal subsidy equal to 14 percent of wages if the coefficient of relative risk aversion is 0.5, an optimal subsidy of 8 percent of wages if the coefficient is 1, and an optimal subsidy of less than 5 percent of wages if the coefficient is 2. High coefficients mean strong concavity, which reduces the benefits of the employment subsidy.

The previous thought experiment was a bonus that just allocated employment dollars to states with high not-working rates. Our alternative thought experiment is a twist that reallocates x * [w.sub.p] dollars from not-working benefits and adds [ 1 - [F.sub.p]([c*.sub.p])]/[F.sub.p]([c*.sub.p]) * x * [w.sub.p] to the employment subsidy. We assume that [e.sub.p] = 0 without this subsidy. We assume that [d.sub.p] + [b.sub.p] = 0.6[w.sub.p], which is in line with tables 6 and 8. In this case, the modified Baily--Chetty condition in equation 2 implies

[mathematical expression not reproducible]

Figure 20 illustrates the optimal benefits twist as a function of [[epsilon].sup.p.sub.w] for the three different cases of constant relative risk aversion utility.

Again, we can match the theoretical predictions against different states. In states with low elasticities, we find that the optimal size of the benefits twist is negative, so the optimal change to the benefit scheme would be to increase benefits for the not working by increasing taxes. (34) Indeed, if the coefficient of relative risk aversion is 2, then the model almost always pushes toward more transfers for the not working because of such strong concavity. When the coefficient of risk aversion is 0.5, again the model suggests a positive benefits twist, with a reallocation of 10 percent or more in states like West Virginia, depending on the elasticity.

Finally, we can calculate the predicted optimal ratio of consumption when working or not working in different states, based on their employment and not-working shares. Our ratio of the fiscal and other externalities of not working to the wage is 0.363, from the previous section. The not-working rate is somewhat more complicated, given that this is the share of the low-skill, at-risk workers who are not working, not the not-working share of the entire population. We use our previous definition of low-income men as those who are employed and have a total annual family income of less than $40,000. Using this definition, we find that the not-working rate for at-risk workers varies from 39.5 percent in Wyoming to 61.3 percent in West Virginia, using the 2014-16 pooled responses from the ASEC.

Table 11 summarizes our results. Our model predicts that the ratio of consumption of not-working to employed men should indeed be lower in areas with high not-working rates. Although these values are only tentative, they illustrate the importance of considering spatially heterogeneous policy responses to nonemployment.

We view these results as thought experiments, not serious policy proposals. These calculations suggest that if utility functions are not too concave, then significantly stronger subsidies for employment would be optimal for states like West Virginia. This conclusion would be tempered if wages fell with subsidies, or if the subsidies distorted migration. If migration were a paramount concern, then our model suggests that there could even be welfare gains in areas with high not-working rates from replacing benefits for the not working with benefits subsidizing marginal workers. In areas with low not-working rates, more benefits for the not working would be welfare-enhancing, especially when risk aversion is high.

VI. Place-Based Policies: Efficacy, Capitalization, and Mobility

We now turn to a brief taxonomy of place-based policies in the United States and elsewhere. Our goal is to link these policies with the three objectives discussed above, and to discuss the evidence on their downsides, including capitalization, distorted location choice, and overall cost. We do not focus on the spatial heterogeneity that occurs because of differences in local government actions, but rather on ways in which national governments and the European Union generate policies with spatially heterogeneous effects. A central theme of this section is that spatial policies have the largest impact when they are targeted toward the needs and problems of particular regions.

VIA. A Taxonomy

Spatial policies can be explicit, openly targeting one area or another, or implicit, aiding particular areas disproportionately, but without an acknowledgment of the geographic tilt. Spatial policies can take the form of direct public investment, tax benefits or subsidies to businesses, tax benefits or grants to individuals, and regulatory relief. Table 12 provides a brief summary of the eight categories in our taxonomy, with a few examples of each form.

VI.B. Direct Public Investment

A prime example of direct public investment is the Tennessee Valley Authority (TVA), which was a New Deal innovation meant to deliver electricity and improve conditions in one of the poorest parts of the country. The TVA began not with a desire for a spatial big push but with the recognition that electricity could have high returns and could be produced by the region's abundant hydropower. Kline and Moretti (2013) provide evidence showing that the TVA increased agricultural employment in the region while subsidies were in place and increased manufacturing employment even after the subsidies ended. They interpret their findings as suggesting that the TVA generated durable agglomeration economies. An alternative interpretation is that the TVA was successful because it delivered electricity, which had a particularly high return in the Tennessee Valley.

Kline and Moretti (2013) also provide evidence relevant for both capitalization and mobility. None of their specifications show a positive impact of the TVA on population growth in the region, suggesting that there were minimal distortions of location choice, which perhaps reflect the fact that the TVA was supposed to pay for itself eventually. In some, but not all, of their specifications, there is a positive impact on median home value. Yet these positive effects do not withstand the inclusion of other controls.

The second particularly well-known spatial program in the United States was the Appalachian Regional Commission, which became a federal agency in 1965. The commission's formation was motivated by local poverty, not any obvious economic opportunity, and its geographic scope runs through 13 states and includes all of West Virginia. The commission provides grants in many areas, but its signature project is the Appalachian Development Highway System, which provides highway access throughout the region. Economic conditions in the affected counties did seem to improve during the 1970s, but there is little evidence of any more durable economic transformation (Glaeser and Gottlieb 2008). The program's scale was modest, relative to the size of the region, which makes ex post evaluation difficult. Nonetheless, the commission's limited success surely reflects its failure to find a high-return regional intervention.

The European Union's cohesion policy is a much larger example of spatially targeted public investment. The policy's explicit goal is to reduce income disparities within the EU region, partially to reduce the political tensions that can come with heterogeneity. The policy differentiates at the subnational level--thus, for instance, though Warsaw is considered more developed, the rest of Poland is considered less developed. Michele Boldrin and Fabio Canova (2001) and Sandy Dall'Erba and Julie Le Gallo (2007) both conclude that this policy is ineffective. Aadne Cappelen and others (2003) find modest positive effects, which are larger in the more developed EU countries. Again, the policies seem to have a limited effect because they focus on spreading money around rather than on interventions that have high returns in particular places.

Within the United States and elsewhere, spatially motivated infrastructure investment has been much less important to spatial development than nonspatially motivated infrastructure investment. The federal Interstate Highway System, for example, was not intended to help suburbanize America or to strengthen particular communities relative to others. Yet Nathaniel Baum-Snow (2007) finds that each new highway that was built in a metropolitan area with federal support after World War II reduced the central city's population by 18 percent. Gilles Duranton and Matthew Turner (2012) find significant effects of highway construction on the economic development of connected metropolitan areas. The large mobility effects of the highway system reflect the fact that the system delivered mobility that was valued by millions of Americans. (35)

Although David Aschauer (1989), Alicia Munnell (1992), and others have found positive effects of infrastructure on local economic activity, Andrew Garin (2016) finds almost no impact of transportation spending under the American Recovery and Reinvestment Act on employment. One interpretation of the difference is that earlier studies focused on a period when infrastructure brought high value to drivers and consequently also moved activity across space. Edward Gramlich (1994), in particular, is associated with the view that the returns to infrastructure have declined over time. The modest impact of recent subways on urban structure (Baum-Snow and Kahn 2005) is compatible with the view that investments that are poorly targeted toward local demand also have little spatial impact.

Supporters of spatial targeting for direct government spending sometimes argue that in some cases, spatial effects can be generated at a moderate cost. For example, if the government is going to spend a fixed amount on the military, then locating an installation in Mississippi rather than New York may be largely irrelevant to any military objectives. Nakamura and Steinsson (2014) find significant effects of military spending on the local economy. Giulia Faggio and Henry Overman (2014), however, use quasi-exogenous shifts in the size of local government to estimate the spillovers from increases in public employment. They find that 1 extra job in the public sector generates 0.5 extra service sector job and crowds out 0.4 tradable sector job. (16) One explanation for the difference may be that nonmilitary employment crowds out local jobs, but military employment is sufficiently different so that it does not.

Land grant colleges may have been the federal government's most successful foray into place-making." These educational institutions, subsidized with federal land, are strongly associated with high incomes (Moretti 2004) and population growth during recent decades (Glaeser and Saiz 2004). Once again, these interventions seem to have been spatially effective because they have supported an activity that was thought to have high returns regardless of any spatial dimension.

Most direct public investment is probably most compatible with the agglomeration-related justifications for spatial intervention. Indeed, one interpretation of the TVA's results is that this investment generated a "big push" that took advantage of convex agglomeration economics. We are far from confident about economists' current ability to identify such opportunities. The general existence of agglomeration economies may support the case for national proinvestment policies, such as reducing taxes on capital gains, but unless we understand the spatial heterogeneity of agglomeration effects, the existence of agglomerations does not justify spatially heterogeneous polices.

Most of the best agglomeration studies (Combes and others 2012) support the existence of agglomeration economies, but they give us little confidence about heterogeneity of local spillovers across space. The million-dollar plant identification strategy of Michael Greenstone, Richard Hornbeck, and Moretti (2010) provides little hope of identifying heterogeneous agglomeration effects because great swaths of America, especially the high-income coastal regions, were generally not recipients of these plants. Consequently, it is impossible to know whether a relocation of capital and labor from Los Angeles to Kentucky will lead to benefits in Kentucky that are large enough to offset the losses in Los Angeles.

VI.C. Local Employment Subsidies

The case for spatial targeting is that supporting employment may have a particularly high return in particular places. There is a serious body of literature that documents the effects of national employment subsidies. Jonathan Gruber (1997) finds that the elimination of the payroll tax in Chile was mostly passed along in the form of higher wages and did little for employment. James Heckman and Carmen Pages (2004) find that between 0 and 60 percent of a firm's social security contributions in Latin America are passed along to workers in the form of lower wages. The EITC literature has typically found that most of the benefit of the credit accrues to workers (Rothstein 2010). The track record of local employment subsidies is more mixed, perhaps because they have not been targeted toward places where they would be most effective.

The literature on local employment subsidies is large and varied. Skepticism about direct government spending led the U.K. government of Margaret Thatcher toward a different approach: enterprise zones. Peter Hall (1982) is generally credited with the idea of reducing taxes and regulation in troubled urban areas. Despite his solid credentials as a social democrat, he had been impressed with the success of Hong Kong and Singapore, and he hypothesized that a similar light-handed touch could engender economic regeneration in Britain's troubled inner cities.

The Thatcher government embraced Hall's vision, and the United Kingdom began its program of providing tax benefits for firms operating in particular urban locations. Stuart Butler (1980) embraced the adoption of this approach in the United States. Although the federal government would not begin its program of "empowerment zones" until 1993, a plethora of states experimented with enterprise zones during the 1980s. The hallmark of such zones is that firms derive some tax benefit from operating within a disadvantaged area.

Though enterprise and empowerment zones are typically targeted at small, depressed urban areas, other countries have offered tax incentives for businesses that locate in larger regions. Since 1987, Italy has offered corporate tax exemptions for firms operating in the poorer Mezzogiorno region, which includes southern Italy and Sicily. These incentives are larger for firms that fall within the government's favored industrial initiatives. France has been offering grants to firms that spread industry away from Paris since the 1960s. The Netherlands also offers targeted spatial incentives for businesses.

Barry Rubin and Craig Richards (1992) provided an early assessment of the effects of these zones in the United Kingdom and across U.S. states, and concluded that the U.K. experience was relatively unsuccessful. They estimate a cost per job of about [pounds sterling]50,000, which annualizes to be about $14,000 per job-year, which would be almost $30,000 per job-year today. Leslie Papke (1994) relied on these figures in her assessment of the difficulties facing enterprise zones in the United States. Margaret Wilder and Rubin (1996) summarize a large number of early studies, and find wildly divergent effects. In some cases, the cost per job was as low as $1,000.

In the past 20 years, the literature on state enterprise zones has grown, but results seem to be quite sensitive to the time period and approach. Daniele Bondonio and John Engberg (2000) and Robert Greenbaum and Engberg (2004) find little effect on employment or industrial expansion using a standard difference-in-differences approach. Suzanne O'Keefe (2004) compares enterprise zones in California with those in other areas that are matched using propensity score techniques. She finds a short-run 3 percent increase in employment associated with enterprise zone status, but less of a long-run effect.

Neumark and Jed Kolko (2010) use particularly fine-grained geography and find no impact of the California program. John Ham and others (2011) also use fine-grained geographies, and work hard to distinguish different programs. They find a negative impact on the unemployment rate, but do not find a positive impact on employment. Thus, if enterprise zones reduce unemployment but do not increase employment, then they must operate by reducing the amount of job seeking, which is a surprising finding.

The most impressive piece of recent research on zones is by Busso, Gregory, and Kline (2013), who come to a relatively positive conclusion about the impact of federal empowerment zones. They compare labor market outcomes in the first round of empowerment with a treatment group that consists of areas that also competed for zone status. They have access to confidential census micro data and find positive effects on employment, earnings, and housing prices. They do not see significantly rising rents in empowerment zones.

Busso, Gregory, and Kline's (2013) estimates have been used to produce a cost of only $18,000 per job, although it is unclear how many years of employment this means. Nonetheless, this figure is quite low relative to other estimates, which are often closer to $100,000. One interpretation of Busso, Gregory, and Kline's (2013) results is that the national empowerment zones subsidized employment in places where there was an abundance of potential employers and marginal workers. By contrast, the U.K. enterprise zones and state enterprise zones may have been more scattered.

Busso, Gregory, and Kline (2013) also find significant capitalization in housing values, but little in rents. Andrew Hanson (2009) and Douglas Krupka and Douglas Noonan (2009) find broadly similar results, again using a synthetic control group based on areas that applied for but did not receive empowerment zone status. Research on the capitalization of other social interventions into property values has been more limited. (38)

Gordon Betcherman, Meltem Daysal, and Pages (2010) provide a particularly relevant analysis of spatially targeted employment subsidies in Turkey. They find that the employment subsidies did substantially increase jobs, but that the cost was considerable. But they also conclude that the programs were poorly targeted, and as much as 78 percent of the benefits were paid for jobs that would have existed even without the program. They call these costs deadweight losses, but we think that they are better interpreted as a transfer to firms' owners.

VI.D. Individual Tax Credits or Grants

Location-specific tax benefits for individuals are less common spatial policies. The United States does, of course, have significant spatial heterogeneity in state and local tax rates, but these differences are presumably also tied to differences in spending and services. Norway's grants of tax benefits to the residents of its colder, darker, northern climes are an example, but notably these benefits merely subsidize location, not employment or other behaviors.

Intellectually, there would seem to be no reason why places could not be targeted by individual tax benefits as much as firm-specific tax credits, yet there are good reasons why these are less common. The primary beneficiaries of standard tax credits would tend to be richer, rather than poorer, residents, and this makes them poorly targeted for spatially targeted redistribution. Inducing business location in a particular area may achieve agglomeration-related benefits. Inducing people to locate in an area, without associated jobs, would have fewer agglomeration benefits and could potentially make local nonemployment problems worse. The political backlash against place-based individual tax subsidies might be significant.

National tax policy can have important spatial dimensions. Joseph Gyourko and Todd Sinai (2003), for example, show that the benefits of the home mortgage interest deduction accrue to some places more than others. (39) The 2017 tax law's changes to the deductibility of state and local taxes represents a major spatial policy, essentially benefiting low-tax areas at the expense of high-tax areas.

There are large bodies of literature on both the capitalization and migration effects of differences in state taxes. Wallace Oates (1969) famously reported significant capitalization of tax differences into property values, but the subsequent literature has been far less clear. Jon Bakija and Joel Slemrod (2004) find that the elderly rich move to avoid high estate taxes, but few more general results have been established on tax-based migration.

Federal benefits, such as unemployment insurance and disability insurance, can also be spatially targeted. (40) Before the 1996 welfare reform, there were significant differences across states in the generosity of the Aid to Families with Dependent Children (AFDC) program. Although the program was nationwide, states could choose their benefit levels, and they paid for part of the benefit.

There is little literature on the capitalization of AFDC differences, but there is a healthy literature on whether these payments induced migration of the poor. Rebecca Blank (1988) found that single-parent families were more likely to leave areas with less generous AFDC payments. George Borjas (1999) argued that the disproportionate flow of immigrants into California reflected its particularly high levels of AFDC payments.

Though it may be harder to imagine a program that increases nominal payments in some states, programs with constant nominal benefits are the norm, and these benefits have greater value in low-price states. Because government tax dollars go further when local prices are lower, price heterogeneity also gives an added push to spending more in places where costs are lower (Kaplow 1996; Glaeser and Saiz 2004). A ramped-up version of the EITC that provided a uniform hourly work subsidy would have a more disproportionate real impact in lower-income parts of the country.

VI.E. Regulatory Heterogeneity

The original enterprise zone model also envisioned significant regulatory relief. In practice, these zones were more likely to feature tax relief rather than regulatory relief. In the United States, this reflects the fact that the national government has little power to override local regulations. Globally, there are many prominent examples of zones that offer a special set of rules to businesses. The special economic zones of China, for example, were a powerful example of how business formation can be abetted with freedom from China's robust business controls.

Within the United States, the Devens Enterprise Commission provides a small, local example of a zone with light regulation. When the military base Fort Devens shut down, the Massachusetts state government attempted to encourage business formation in the area with one-stop permitting. The commission claims to have been successful in encouraging new business formation, but there is no academic research documenting its success.

Firms also experience different levels of regulation when they operate in areas that are deemed to be environmentally sensitive. Builders face different regulations when they operate in historic preservation districts. In these cases, historic differences across geography have regulatory consequences that also have an impact on the level of economic activity.

There are also historical accidents that lead to significant regulatory differences. The Channel Islands off the coast of the United Kingdom are not actually part of the United Kingdom or the European Union. Consequently, they operate under a different set of financial regulations, which have made them a hot spot for a variety of financial service firms.

Limiting the supply of new housing restricts migration to particular areas and boosts prices in those areas (Glaeser and Gyourko 2018). We have less evidence on whether other forms of regulation have such effects. Consequently, one of the best justifications for districts with different types of regulations is that they enable experimentation with new types of regulations. For example, entrepreneurship districts that relaxed regulations on new businesses would allow one to study the impact of such interventions.

VII. Place-Based Policies for America

Our theoretical section suggests that public support should shift toward encouraging employment, rather than supporting the not working, in areas where employment responses to earnings are particularly high. Our empirical findings suggest that employment elasticities in some states, like West Virginia, may be much higher than in other states, like Wyoming. Our conclusion is that a policy mix that encourages more employment in high nonemployment states, such as West Virginia, may yield greater benefits than uniform national policies that treat all states equally.

We begin with the two most plausible examples of such place-based actions: targeted location of public activities, and infrastructure investment. We then turn to employment subsidies, which are a natural tool for fighting nonemployment but are harder to target spatially. Finally, we end with education interventions, and prodding community colleges to focus more on employability in regions with high not-working rates.

VILA. The Location of Public Activity and Infrastructure Investment

Although there are approximately 22 million public sector workers within the United States, only 2.8 million of them are actually in the federal government. This relatively small employment share necessarily limits the magnitude of any relocation of federal activities. Moreover, 51 percent of civilian, nonpostal workers are either in the military or in veterans' affairs, and consequently, any serious relocation policy would need to focus on the military. (41)

There is mixed evidence on the employment effects of public activity, but the location of military bases does seem to have a positive impact on the local economy (Nakamura and Steinsson 2014). The harder question, which we cannot answer, is What are the costs of the geographic targeting of military spending? Shuttering and reopening the same base somewhere else seems prohibitively expensive. The best opportunities for geographic targeting occur at the points of base openings and closings. In principle, new bases can be sited and old bases can be kept open in areas with more elastic employment responses to labor demand.

The most reasonable proposal might be to ask the military to incorporate the effects on local employment into its calculations. If the military actually used a cost-benefit analysis in making location decisions, it would be straightforward to multiply employment effects with estimates of the externalities from employment and incorporate this total location-specific benefit into calculations.

After the military, the Department of Veterans Affairs (VA) is the second-largest federal employer. The VA has fewer spatially lumped assets, but it does maintain hospitals and large offices. Again, the department could be encouraged to internalize local employment effects when it opens and shuts facilities, but this would be fundamentally limited by the need to match medical facilities with the location of military retirees. The VA's nonmedical employment is more spatially fungible, but represents a modest share of its total employment.

Although the location decisions of the federal government could internalize local employment effects, we are doubtful that such policies could ever be significant in practice. The military will surely oppose any push to have it internalize nonmilitary objectives. The VA will similarly move only with difficulty.

Federally funded infrastructure projects are perhaps the most popular tool for encouraging local economic development. Yet these projects also have a very mixed record of encouraging local employment (Garin 2016), and there is an inherent tension between targeting infrastructure toward growing successful areas that need more infrastructure and supporting distressed areas with a highly elastic labor supply. America's most glaring infrastructure deficits are visible in large, busy, urban areas where airports, like New York's John F. Kennedy International Airport, are undermaintained and where public transportation and highways are highly congested.

If users are willing to pay for both a project's operating and capital costs, then it is unlikely to be a white elephant. If modest federal investment can spur self-financing infrastructure projects in distressed areas, then there seems to be little downside risk. But is there a large number of such potential projects?

The Tennessee Valley Authority was close to being such a project. The original financing for the TVA came from the federal government, but that early investment has been repaid. The TVA also benefited from using eminent domain to move thousands of farmers to gain access to waterways, but many of those farmers benefited from subsequent electricity access. The TVA succeeded because it offered a transformative technology--electricity--for which there was abundant demand.

The Trump administration's infrastructure plan combines a modest amount of federal seed money meant to spur the building of infrastructure that is financed by user fees. The proposal contains tools for scoring prospective proposals, but the details of the scoring algorithm have not yet been made public. The natural means of incorporating concerns about not working into that structure is to provide extra points in the algorithm based on the number of people who can be reasonably projected to find employment as a result of the project after it is completed. Ideally, the social values of these transitions should be denominated in dollars to make them comparable with other criteria used in the scoring algorithm.

If federal investment comes with no expectations for user fee financing, then there is more scope for spatially targeting areas with high not-working rates, and more risk of white elephants. At this point, most legislatively mandated projects do not come with a cost-benefit analysis. If such analyses were to become the norm, then it would be natural to include the social benefits of employment among overall benefits. Even without a cost-benefit analysis, the current Highway Trust Fund apportionment rules could incorporate nonemployment effects. Such alterations to the code would, however, require one to be certain that highway funds spent in areas with high not-working rates do more to reduce not-working rates than highway funds spent in other areas.

In a reformed system with better checks on waste and real cost-benefit analyses, infrastructure could provide a tool for regional support; but without such reforms, the downsides remain significant.

VII.B. Employment Subsidies, Welfare Benefits, and Federal Taxes

The norm in U.S. politics is that national policies need to be uniform, even when local heterogeneity argues strongly against such uniformity. Housing subsidies, such as the Low Income Housing Tax Credit, treat Detroit, Houston, and San Francisco essentially identically, despite their wildly different housing costs and supply conditions. We have tried to make the case that labor supply elasticities are heterogeneous, and consequently one-size-fits-all employment policies will generate less added employment than spatially differentiated policies. Stronger employment subsidies are likely to reduce joblessness more in eastern Tennessee than in San Francisco.

The current Earned Income Tax Credit is based on annual earnings. It phases in at low incomes, where it essentially offers a proportionate increase in earnings; it reaches a maximum value, and for individuals at this earnings threshold it essentially offers a flat nominal subsidy for working; and it phases out at higher incomes, essentially acting as a deterrent on working more.

The EITC can be over $6,000 for individuals with three or more children and earnings of about $16,000. For individuals who do not have children in their households, it represents an extremely modest work subsidy. However, the overwhelming preponderance of not-working men do not have a child in their homes.

For the EITC to be more effective at spurring prime age male employment, it would need to be more generous to single-person households. One option would be to affect a straight wage subsidy, perhaps administered through employers, which would obviously increase the take-home pay per hour of work. One danger of this approach is that it might engender fraud as workers and firms collude to declare that the worker had labored for longer hours at lower wages. If fraud can be effectively contained, an hourly employer-managed wage subsidy has significant advantages in ease of administration and salience. Any system would need to phase out to be fiscally prudent, which would inevitably deter work. Edmund Phelps (1997) explores the potential implementation of employment subsidies in detail, and proposes a system of employment subsidies based on continuing tax credits for employers.

A flat cash wage subsidy would provide more push in areas with high not-working rates because prices are lower. The current maximum EITC payment, which is fixed in dollar terms, already achieves that end. The phase-in period, which increases earnings proportionally, does not. Consequently, the move to a dollar wage subsidy, instead of a percentage increase, would partially strengthen geographic targeting. A more aggressive approach would increase the size of the wage subsidy in distressed areas, which our estimates suggest would increase employment more per $ 1 spent.

Another approach is to reduce marginal taxes for everyone living in areas with high not-working rates. This approach is embodied in the 2017 tax law, which lowered tax rates for many and increased the standard deduction. But it also severely limited the deductibility of state and local taxes. Effectively, this shift raised taxes in big government states relative to small government states. If local government spending on services like education has significant social value, then this strategy has significant downsides. Yet given the negative correlation between the size of local government and not-working rates, it may also reduce the disincentive to work in areas where not working is more endemic.

The actual tax code may be less important for deterring employment than the rules surrounding public benefits, like the Supplemental Nutritional Assistance Program, housing vouchers, and disability insurance. These benefits effectively tax employment by decreasing or disappearing entirely with higher earnings. The implicit taxes created by these programs could be reduced in low-employment regions by enabling people who work and earn low incomes to keep more of the benefits. Current implicit tax rates of 30 percent could be reduced to 20 percent, for example.

In this section, we focused on increasing spending in regions with high not-working rates, and we recognize that this could distort migration and lead to high real estate prices. As the theory section made clear, this can be offset if other benefits are removed from the region. We will not analyze appropriate areas to cut; but theoretically, it is possible to reduce nonemployment in regions with high not-working rates while keeping total spending in the region constant and not distorting migration incentives, as long as other nonemployment-enhancing spending is cut back.

Although our model suggests the value of more tailored employment policies, we are notably not calling for local control. Localities often have strong incentives to distort migration in order to attract the rich and repel the poor. Purely local control over social welfare policy could lead to a race to the bottom where states dismantled their safety nets to get rid of their poorer residents.

VII.C. Place-Based Education Reform

The data strongly support the view that education is an extremely powerful determinant of local success and failure. We consequently join those who see investment in human capital as critical for long-run growth, even if this investment takes a generation or more.

However, education also contains trade-offs between providing skills that maximize future employability and other objectives. Liberal arts education, naturally, has never accepted preprofessionalism, but even in high schools and community colleges there are often diverse objectives. Those trade-offs can be tilted toward employment in regions with high not-working rates.

Currently, the federal government supports community colleges through Pell Grants and other forms of support. This support could be structured to provide incentives that induce those institutions to focus more on job-generating skills. For example, community colleges could receive bonus payments for admitting students from distressed regions, who would then be employed for a number of years after graduation. At the least, such a program could be tested for impact.

We do not anticipate that such incentives will do much in the classroom. It is difficult to change teaching quality for courses such as remedial writing and mathematics. The more likely impact of such an incentive program is that college administrators would begin experimenting with counseling and promoting more employable majors.

Bartik and George Erickcek's (2014) discussion of place-based policies emphasizes the possibility of targeted training programs, which might provide skills that are in high local demand. Though the track record of adult training programs is mixed at best, we agree with Bartik and Erickcek that there is value is experimenting with targeted training. If there are fixed costs to supporting training in particular locations, then it would make sense to have programs disproportionately in areas with a greater need and a more elastic labor supply.

VIII. Final Thoughts

This paper has proposed three plausible justifications for place-based policies: agglomeration economies, geographic targeting of redistribution, and nonemployment reduction in hot spots. The agglomeration case for spatial redistribution is weak, because we know too little about the exact functional form of agglomeration economies. The case for geographic targeting of redistribution is more plausible, but income heterogeneity within areas is much larger than heterogeneity across areas. Moreover, capitalization effects mean that property owners are likely to reap many of the benefits of geographically targeted policies.

The best case for geographic targeting of policies is that $1 spent fighting nonemployment in an area with a high not-working rate will do more to reduce nonemployment than $1 spent fighting nonemployment in an area with a low not-working rate. The empirical evidence for heterogeneous labor supply responses to demand shocks or public interventions is limited, but is broadly supportive of the view that reducing the not-working rate in some parts of the country is easier than in other parts of the country.

This heterogeneity can either justify added spending in distressed, more elastic areas, or a twist in spending that favors employment in these areas. Though infrastructure remains an important investment for the United States, targeting infrastructure spending toward distressed areas risks producing projects with limited value for users. By contrast, enhanced spending on employment subsidies in areas with extreme joblessness, and perhaps in the United States as a whole, seems like a more plausible means of reducing nonemployment. Subsidizing employment seems likely to have a larger impact in the long run if it is matched with investment in work-related human capital.

ACKNOWLEDGMENTS We are grateful to Harris Eppsteiner for outstanding research assistance. For excellent comments, we are very grateful to Gilles Duranton, Robert Hall, and James Stock; to the participants in the Brookings Panel on Economic Activity; and to faculty members of Johns Hopkins University.


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Harvard University


Harvard University

Conflict of Interest Disclosure: The authors received financial support for this work from the Smith Richardson Foundation. With the exception of the aforementioned, they did not receive financial support from any firm or person for this paper or from any firm or person with a financial or political interest in this paper. With the exception of the aforementioned, they are currently not officers, directors, or board members of any organization with an interest in this paper. No outside party had the right to review this paper before publication.

(1.) Eberstadt (2016) and the Council of Economic Advisers (2016) both provide excellent overviews of the rise in nonemployment among prime age males.

(2.) Place of birth has a strong impact on economic opportunity (Chetty and Hendren. forthcoming). Almost 50 years ago, in 1969, the U.S. Bureau of Economic Analysis also listed Stamford, Conn., as the wealthiest metropolitan area and McAllen. Tex., as the poorest. In that year, Stamford was almost three times as rich as McAllen. In 2016, America's richest metropolitan areas (Stamford and Midland, Tex.) were four times richer than the poorest (McAllen).

(3.) The impact of spatially heterogeneous policies on migration is a long-standing question in antipoverty policy, and much of the best work on this topic preceded welfare reform, when state differences in payments for Aid to Families with Dependent Children could be quite large (Borjas and Hilton 1996).

(4.) Busso. Gregory, and Kline (2013) also find that Empowerment Zones do seem to get capitalized into housing prices, especially in depressed areas, but evidence for capitalization into rents is weaker.

(5.) One plausible explanation for the relationship between regulation and education is that higher-skilled people are also better at organizing into groups that oppose new construction, such as the San Francisco Bay Area's Save the Bay initiative, which was cofounded by Catherine Kerr, the wife of Clark Kerr, the first chancellor of the University of California, Berkeley.

(6.) Berry and Glaeser (2005) find that the correlation across industries between the education levels of managers and the education level of workers increased significantly between 1970 and 2000, which supports the view that skilled workers increasingly complement each other at work.

(7.) This is as shown in online appendix figure 1. Online appendix figure 2 shows a steady rise in prime age female labor force participation through the 1990s and then a leveling off. The online appendixes for this and all other papers in this volume may be found at the Brookings Papers web page,, under "Past BPEA Editions."

(8.) The CPS consists of a 4-8-4 rotation structure, where households are interviewed for four months, rotate out of the panel for eight months, and are then interviewed for an additional four months. We use the method developed by Rivera Drew. Flood, and Warren (2014) to match respondents across months.

(9.) We note that some men who state they want a job may be unable to start a job immediately. However, we believe it is instructive to decompose not-working men into those who have a stated preference for future employment and those who do not.

(10.) The residents of rust belt cities were less happy during the 1940s and 1970s, but they were presumably compensated by higher wages (Glaeser, Gottlieb, and Ziv 2016).

(11.) There are slight population differences between decennial census data, which were used to create the 1980 map, and American Community Survey data, which were used to create the 2015 maps. Moreover, the 2015 PUMAs are defined differently than the consistent PUMAs used from 1980 to 2010. The maps look broadly similar using 2010 data and consistent 1980-2010 PUMAs.

(12.) Online appendix figure 5 shows a map of prime age female not-working rates in 2015. Online appendix figure 4 shows that in 1980. female nonemployment was more common everywhere and was particularly high in Appalachia.

(13.) Online appendix figures 6 and 7 show the convergence of nonemployment rates at the state level, which has gotten weaker over time.

(14.) Online appendix figure 12 shows the division.

(15.) Online appendix figure 14 shows the cumulative growth by region based on a three-year pooled moving average. Online appendix figures 15 and 16 show the growth in per-worker GDP and employment.

(16.) Online appendix figures 28 and 29 show the increase in incarceration rates.

(17.) Although real hourly wages for the 10th percentile of the U.S. male income distribution were lower in the 1980s and 1990s than they had been in 1979, by 1999 hourly real wages had recovered.

(18.) Online appendix figure 17 shows the share of manufacturing across the United States.

(19.) As Goldin and Katz (2008) document, industrial areas saw less reason to invest in education.

(20.) Heterogeneity in these variables across states is shown in online appendix figures 30, 31, and 32.

(21.) Adult retraining for the displaced and nonemployed would also seem to be highly desirable, but the literature on such problems is decidedly mixed.

(22.) We include a somewhat richer model in the online appendix.

(23.) Albouy (2010) makes a related point by emphasizing how standard progressive income taxation, without an explicit spatial dimension, distorts spatial decisions. Income taxes induce people to choose amenities and low housing costs rather than high incomes, although the distortionary impact of the income tax is diminished by the home mortgage interest deduction.

(24.) We can rewrite this as

[1/1 - [gamma]][e.sup.ln([y.sup.1 - [gamma]])] = [1/1 - [gamma]][e.sup.-([gamma] - 1)ln(y),

and from this point, the standard constant absolute risk aversion calculations follow to derive a linear mean-variance frontier.

(25.) Distorting migration can itself be part of the benefit for residents of poorer areas, if out-migration reduces employment for the remaining residents, as shown by Greenwood and Hunt (1984).

(26.) Some of these concerns are remedied in the online appendix.

(27.) We are implicitly assuming that k represents a national rather than a local externality. Results are not significantly changed if k is treated as a local cost borne by potential migrants.

(28.) Our discussion of this question builds on the work of Bartik (2015), who finds some evidence that local demand shocks have a greater impact in areas with higher initial unemployment rates. A large number of previous studies have also examined the persistence of local labor demand shocks, with varying conclusions.

(29.) These results are merely suggestive of the importance of regional heterogeneity. The size and statistical significance of heterogeneity is dependent on the exact form chosen. We have focused on the interaction of shocks with the initial not-working rate, but other state characteristics may also be important.

(30.) A number of other studies have examined the heterogeneous impact of government expenditures at the local level. For example, see Dube, Kaplan, and Zipperer (2015). A general review of local multipliers is provided by Chodorow-Reich (2017).

(31.) The welfare effects of such spillovers would be ambiguous. Not-working people benefit from having more not-working friends, even if others pay the costs of a generally higher not-working rate.

(32.) For example, Juhn, Murphy, and Topel (1991) find that partial elasticity varies depending on the income distribution of men, with an average value of 0.13 and a high value of 0.35 for men in the 10th percentile of income. Meghir and Phillips (2010) similarly find a higher elasticity of 0.4 for low-income men in the United Kingdom. Broader reviews include those by Blundell and MaCurdy (1999) and Chetty and others (2013).

(33.) We make the simplifying assumption that the labor elasticity in the region is constant as we change the employment subsidy. We recognize that this is not entirely accurate, and a more complete calibration would involve imputing the reservation wages for not-working men in each region.

(34.) In a broader model, the funds could come from other sources than just taxes on low-income earners.

(35.) A host of studies also find effects of highways on local property values (Chernobai, Reibel, and Carney 2011). A working version of the paper by Duranton and Turner (2012) found that more highway miles were associated with slight decreases in the number of poor people and the number of high school dropouts, suggesting that if anything the sorting effects of infrastructure are slightly positive.

(36.) Ades and Glaeser (1995) argue that political forces explain why the capital cities of dictatorships and unstable democracies are about 40 percent larger than the capital cities of stable democracies. There is little doubt that enough government spending of the right kind can have an impact on a local economy.

(37.) A second unplanned federal place-making policy was the Bayh-Dole Act of 1980. which allowed researchers to capitalize on ideas developed with the support of federal grants. Hausman (2017) shows that economic activity increased around universities after the act.

(38.) There is compelling evidence that quasi-random increases in property taxes, caused by court-mandated property revaluation, is capitalized into low property values (Yinger and others 1988). Stull and Stull (1991) find evidence for capitalization of differences in local income taxes in the Philadelphia area.

(39.) Albouy (2010) has argued that the spatial implications of the deduction are helpful in undoing the spatial distortions created by the income tax itself, which deters people from moving to high-income areas.

(40.) Bartik and Erickcek's (2014) discussion of targeted training programs does not explicitly focus on spatial targeting, but the possibility is clearly implicit in their discussion.

(41.) Spatial targeting could also be done with the much larger set of federal government contractors. Yet imposing added geographic restrictions on contractors would be cumbersome, and would make other objectives, such as supporting minority-owned businesses, more difficult. Moreover, geographic targeting would be quite susceptible to gaming. We suspect that a requirement to use Kentucky-based software providers would lead to relabeling rather than large-scale employment in Kentucky.
Table 1. Geographic Predictors of Not Working and Income (a)

                                   Not-working rate, 2010 (b)
                              (1)              (2)            (3)

College graduation         -0.134 (***)     -0.076         -0.068
rate, 1980 (d)
                           (0.050)          (0.053)        (0.044)
Share with less than        0.276 (***)      0.368 (***)    0.394 (***)
a high school
education, 1980 (e)        (0.075)          (0.081)        (0.072)
Share of employment                          0.085 (*)      0.091 (***)
in durable
manufacturing, 1980                         (0.047)        (0.034)
Share of employment                         -0.233 (***)   -0.187 (**)
in nondurable
manufacturing, 1980                         (0.075)        (0.071)
Average January                                             0.002 (***)
temperature ([degrees]F)
Average July                                               -0.005 (***)
temperature ([degrees]F)
[R.sup.2]                   0.337            0.409          0.474
No. of observations       538              538            538

                                      Median wage, 2010 (c)
                             (4)               (5)             (6)

College graduation         66,088 (***)     73,041 (***)    73,489 (***)
rate, 1980 (d)
                          (10,066)          (7,838)         (7,806)
Share with less than      -15,005 (*)      -13,478         -11,900
a high school
education, 1980 (e)        (8,280)          (8,209)         (8,781)
Share of employment                         14,779 (***)    14,510 (**)
in durable
manufacturing, 1980                         (4,729)         (5,626)
Share of employment                         18,540 (*)      20,120 (*)
in nondurable
manufacturing, 1980                        (10,956)        (10,974)
Average January                                                 68
temperature ([degrees]F)
Average July                                                  -200
temperature ([degrees]F)
[R.sup.2]                       0.478            0.510           0.513
No. of observations           538              538             538

Sources: U.S. Census Bureau, 1980 census, American Community Survey;
IPUMS; National Oceanic and Atmospheric Administration; authors'
(a.) Data for 1980 are from the 1980 census; data for 2010 are pooled
2009-11 data from the American Community Survey. The sample includes
civilian noninstitutionalized prime age men in 1980-2000 consistent
Public Use Microdata Areas in the continental United States (excluding
the District of Columbia). Regressions include a constant term. Robust
standard errors clustered by state are in parentheses. Statistical
significance is indicated at the (***) 1 percent, (**) 5 percent, and
(*) 10 percent levels.
(b.) The not-working rate is defined as the share of the population not
currently employed.
(c.) Median wage, expressed in 2016 dollars, is calculated using
reported annual wage income for respondents who usually work more than
35 hours per week and who worked at least 50 weeks in the past year,
excluding those reporting zero wages.
(d.) The college graduation rate is defined as the share of respondents
who report completion of four or more years of college.
(e.) The share with less than a high school education is defined as the
share of respondents who report completion of eleven or fewer years of
education in the 1980 sample.

Table 2. The Probability of Not Working for Prime Age Men, 1980-2010 (a)

                          (1)                   (2)
                         2010                  2010

Eastern                  0.021 (**)            0.008
heartland (b)
                        (0.009)               (0.007)
Western                 -0.030 (***)          -0.034 (***)
heartland (b)
                        (0.008)               (0.007)
High school                                   -0.094 (***)
education (c)
Some college                                  -0.152 (***)
education (c)
College                                       -0.229 (***)
education (c)
College                                       -0.136 (***)
rate for
men in 1980                                   (0.018)
Corruption (d)
Right to work
No. of           1,664,011             1,664,011

                          (3)                    (4)
                         2010                   2000

Eastern                  0.011                 -0.019 (**)
heartland (b)
                        (0.008)                (0.009)
Western                 -0.036 (***)           -0.013
heartland (b)
                        (0.007)                (0.009)
High school             -0.094 (***)           -0.159 (***)
education (c)
                        (0.019)                (0.005)
Some college            -0 152 (***)           -0.206 (***)
education (c)
                        (0.021)                (0.005)
College                 -0.229 (***)           -0.255 (***)
education (c)
                        (0.021)                (0.005)
College                 -0.142 (***)           -0.075 (***)
rate for
men in 1980             (0.018)                (0.026)
Corruption (d)          -0.044                  0.068 (**)
                        (0.027)                (0.034)
Right to work           -0.004                 -0.017 (**)
                        (0.004)                (0.007)
Occupational             0.104                  0.176 (***)
                        (0.062)                (0.052)
No. of           1.664,011              2,858,392

                          (5)                   (6)
                         1990                  1980

Eastern                  0.002                 0.003
heartland (b)
                        (0.008)               (0.007)
Western                  0.007                -0.015 (**)
heartland (b)
                        (0.005)               (0.006)
High school             -0.128 (***)          -0.099 (***)
education (c)
                        (0.007)               (0.005)
Some college            -0.158 (***)          -0.109 (***)
education (c)
                        (0.007)               (0.005)
College                 -0.194 (***)          -0.147 (***)
education (c)
                        (0.007)               (0.006)
College                 -0.092 (***)          -0.117 (***)
rate for
men in 1980             (0.022)               (0.021)
Corruption (d)           0.050                -0.004
                        (0.030)               (0.027)
Right to work           -0.023 (***)          -0.019 (***)
                        (0.005)               (0.004)
Occupational             0.132 (***)           0.102 (**)
                        (0.046)               (0.040)
No. of           2,473,956             2,013.485

Sources: U.S. Census Bureau. 1980. 1990, and 2000 censuses, American
Community Survey; IPUMS; Glaeser and Saks (2006); Kleiner and
Vorotnikov (2017); authors' calculations.
(a.) Data for 1980, 1990, and 2000 are from the decennial censuses;
data for 2010 are pooled 2009-11 data from the American Community
Survey. The sample includes civilian non-institutionalized prime age
men in 1980-2000 consistent Public Use Microdata Areas in the
continental United States (excluding the District of Columbia).
Individual respondents are weighted using sampling weights. Regressions
include a constant term. Robust standard errors clustered by state are
in parentheses. Statistical significance is indicated at the (***) 1
percent, (**) 5 percent, and (*) 10 percent levels.
(b.) The omitted category is the coasts.
(c.) The omitted category is less than a high school education.
(d.) Corruption is measured using average annual corruption convictions
per 100.000 residents, following Glaeser and Saks (2006).

Table 3. State- and PUMA-Level Bartik Analysis (a)

                         Growth in state not-working rate (b)
                          (1)               (2)

Bartik employment        -0.665 (***)      -0.447 (***)
growth (e)
                         (0.034)           (0.104)
rate (f)
Bartic employment                          -2.013 (**)
x historical                               (0.994)
rate (e,f)
State fixed effects      Yes               Yes
Time trend               Yes               Yes
Year fixed effects       No                No
No. of observations   1,872             1,872

                            Growth in state          Growth in the house
                          not-working rate (b)         price index (c)
                           (3)          (4)            (5)         (6)

Bartik employment        0.198        0.440 (**)      0.295      -0.218
growth (e)
                        (0.149)      (0.211)         (0.450)     (0.517)
rate (f)
Bartic employment                    -2.129 (**)                  4.535
x historical                         (1.060)                     (2.885)
rate (e,f)
State fixed effects     Yes          Yes             Yes         Yes
Time trend              No           No              No          No
Year fixed effects      Yes          Yes             Yes         Yes
No. of observations  1,872        1,872           1,584       1,584

                        Growth in PUMA not-working rate (d)
                           (7)                (8)

Bartik employment         -0.859 (***)       -0.523 (***)
growth (e)
                          (0.137)            (0.136)
Historical                -0.015 (***)        0.011 (*)
rate (f)
                          (0.004)            (0.005)
Bartic employment                            -2.341 (***)
x historical                                 (0.384)
rate (e,f)
State fixed effects       Yes                Yes
Time trend                No                 No
Year fixed effects        Yes                Yes
No. of observations   11,693             11,693

Sources: U.S. Census Bureau, Current Population Survey, Annual Social
and Economic Supplement, American Community Survey; Federal Housing
Finance Agency; authors' calculations.
(a.) The not-working rate is defined as the share of the population not
currently employed. Robust standard errors clustered by state are in
parentheses. Statistical significance is indicated at the (***) I
percent, (**) 5 percent, and (*) 10 percent levels.
(b.) Data at the state level are from the 1978-2016 Annual Social and
Economic Supplements of the Current Population Survey. The sample
includes civilian noninstitutionalized prime age men in the continental
United States (excluding the District of Columbia).
(c.) The growth in the house price index is calculated by averaging the
quarterly all-transaction index from 1984 to 2016.
(d.) Data at the PUMA level are from the 2006-16 American Community
Surveys. The sample includes noninstitutionalized prime age men in
1980-2000 consistent PUMAs in the continental United States.
(e.) Bartik employment growth shocks are calculated based on predicted
growth in employment based on 1977 (state) or 2005 (PUMA) industry
shares and industry employment growth rates for all workers in the
continental United States.
(f.) Historical refers to 2005 for PUMAs.

Table 4. The Impact of Chinese Import Shocks on Not Working, 1990-2007

                                      Change in
                                  not-working rate
                                 (1)               (2)

Change in trade                0.831 (***)
exposure                      (0.172)
Change in trade                                  0.823 (***)
exposure, baseline                              (0.173)
zones, [[beta].sub.l]
Change in trade                                  0.597 (*)
exposure, high                                  (0.318)
not-working rate
zones, [[beta].sub.h]
- [[beta].sup.c.sub.l]
Percentage of total           -0.068 (**)       -0.066 (**)
employment in                 (0.028)           (0.028)
manufacturing, t - 1
Percentage of                 -0.031            -0.027
population that               (0.030)           (0.029)
is college educated,
t - 1
Percentage of                 -0.108 (***)      -0.106 (***)
population that is            (0.024)           (0.024)
foreign born, t - 1
Percentage of total            0.191 (**)        0.199 (**)
employment that is            (0.090)           (0.092)
female, t - 1
Percentage of total            0.217 (**)        0.226 (**)
employment in                 (0.095)           (0.094)
routine occupations,
t - 1
Average offshorability        -1.142 (*)        -1.204 (*)
index of occupations,         (0.660)           (0.661)
t - 1
Census region fixed           Yes               Yes
Period fixed effects          Yes               Yes
No. of observations        1,444             1,444

                            Change in long-term not-working rate (b)
                               (3)              (4)

Change in trade              0.372 (***)
exposure                    (0.093)
Change in trade                               0.368 (***)
exposure, baseline                           (0.094)
zones, [[beta].sub.l]
Change in trade                               0.339 (*)
exposure, high                               (0.191)
not-working rate
zones, [[beta].sub.h]
- [[beta].sup.c.sub.l]
Percentage of total         -0.015           -0.013
employment in               (0.014)          (0.014)
manufacturing, t - 1
Percentage of               -0.010           -0.007
population that             (0.014)          (0.014)
is college educated,
t - 1
Percentage of               -0.051 (***)     -0.050 (***)
population that is          (0.011)          (0.011)
foreign born, t - 1
Percentage of total          0.002            0.006
employment that is          (0.030)          (0.031)
female, t - 1
Percentage of total          0.044            0.049
employment in               (0.050)          (0.050)
routine occupations,
t - 1
Average offshorability      -0.187           -0.222
index of occupations,       (0.270)          (0.270)
t - 1
Census region fixed         Yes              Yes
Period fixed effects        Yes              Yes
No. of observations      1,444            1,444

Sources: U.S. Census Bureau, 1990 and 2000 censuses, American Community
Survey; IPUMS; Autor. Dorn, and Hanson (2013); authors' calculations.
(a.) The not-working rate is defined as the share of the population not
currently employed. Data for 1990 and 2000 are from the decennial
censuses; data for 2007 are pooled 2006-08 data from the American
Community Survey. The sample includes noninstitutionalized prime age
men. Regressions are weighted as by Autor, Dorn. and Hanson (2013).
Robust standard errors clustered by state are in parentheses. The
change in trade exposure and controls at the commuting zone level are
for the entire working population. Statistical significance is
indicated at the (***) 1 percent, (**) 5 percent, and (*) 10 percent
(b.) Long term is defined as more than 12 months.
(c.) Zones with high not-working rates are in the top 10 percent of the
distribution of not-working rates for prime age men in 1990.

Table 5. The Impact of Government Spending Shocks on Not Working,
1980-2006 (a)

                            Percentage change in the not-working
                                  rate for prime age men
                            1-year change              2-year change
                           (1)        (2)               (3)

Prime military             -6.218                       -6.370 (*)
                           (4.587)                      (3.578)
Prime military                         -5.725
baseline states,
Prime military                        -11.051 (**)
high not-working
rate states,                           (4.900)
- [[beta].sub.l.]
State fixed effects        Yes        Yes               Yes
Year fixed effects         Yes        Yes               Yes
No. of observations     1,377       1,377            1,377

                              Percentage change in the not-working
                                      rate for prime age men
                           2-year change           3-year change
                              (4)               (5)             (6)

Prime military                               -9.613 (**)
Prime military             -6.214 (*)                        -9.491 (**)
baseline states,
                           (3.587)                           (4.168)
Prime military             -1.553                            -3.048
high not-working
rate states,               (5.551)                           (5.181)
- [[beta].sub.l.sup.b]
State fixed effects        Yes               Yes             Yes
Year fixed effects         Yes               Yes             Yes
No. of observations     1,377             1,377           1,377

Sources: U.S. Census Bureau, Current Population Survey, Annual Social
and Economic Supplement; IPUMS; Nakamura and Steinsson (2014); authors'
(a.) The not-working rate is defined as the share of the population not
currently employed. The change in prime military contract spending as a
share of output per capita is instrumented using national per capita
spending as a share of output, as described by Nakamura and Steinsson
(2014). The sample includes noninstitutionalized prime age men. Robust
standard errors clustered by state are in parentheses. Statistical
significance is indicated at the (**) 1 percent, (**) 5 percent, and
(*) 10 percent levels.
(b.) States with high not-working rates are in the top 25 percent of
the distribution of mean not-working rates for prime age men from 1980
to 2006.

Table 6. Income Sources for Prime Age Men, 2010-16 (a)

                                Employed         Not working, less
                                                 than 12 months
Source                      Total      Low       Living      Living with
                                       income    alone (c)   others

Total family income         93,939     24,522     35,744     65,810
Total individual income     63,931     21,471     35,699     33,280
  Wages                     58,038     19,000     28,712     27,452
  Investments or business    4,938      1,711      2,306      2,326
  Retirement                   205         23        506        376
  Workers' compensation         36         25        151        150
  Family transfers              33         43        378         65
  Total government support     605        645      3,547      2,827
    Unemployment               234        331      2,032      1,877
    Disability insurance        99        135        793        376
    Veterans' benefits         126         37        224        156
    Other                      146        142        497        418
  Other sources                 76         24        100         85
Percentage of                   81.7       19.3        1.0        5.5
prime age men

                             Not working,more than 12 months
Source                       Living      Living with
                             alone (c)   others

Total family income          12,682      42,757
Total individual income      12,583       8,227
  Wages                           0           0
  Investments or business       673         343
  Retirement                    746         950
  Workers' compensation         327         305
  Family transfers              539         146
  Total government support    9,966       6,400
    Unemployment                949         942
    Disability insurance      7,532           4.471
    Veterans' benefits        1,009         510
    Other                       476         476
  Other sources                 333          83
Percentage of                     1.8        10.0
prime age men

Sources: U.S. Census Bureau. Current Population Survey. Annual Social
and Economic Supplement; IPUMS: authors' calculations.
(a.) The sample includes noninstitutionalized prime age men with
nonnegative incomes. The data are pooled over 2010-16. Except for the
final row, the units are real 2016 dollars.
(b.) Low income is defined as having annual family earnings below
(c.) Respondents are classified as living alone if there are no other
residents age 18 or over in the household.

Table 7. Income Sources for Long-Term Not-Working Prime Age Men,
2010-16 (a)

Source                         Coasts   Eastern     Western heartland

Total family income            40,318    34,859          36,897
Total individual income         8,665     9,283           8,964
  Wages                             0         0               0
  Investments or business         400       275             541
  Retirement                      890       850           1,089
  Workers' compensation           358       254             244
  Family transfers                211       145             279
  Total government support      6,652     7,688           6,711
    Unemployment                1,072       756             862
    Disability insurance        4,584     5,834           4,661
    Veterans' benefits            499       638             751
    Other                         498       461             438
Other sources                     154        69             100

Sources: U.S. Census Bureau, Current Population Survey, Annual Social
and Economic Supplement; PUMS; authors' calculations.
(a.) The sample includes civilian noninstitutionalized prime age men
with nonnegative incomes in the continental United States (excluding
the District of Columbia). Long term is defined as more than 12 months.
The data are pooled over 2010-16. The units are real 2016 dollars

Table 8. Expenditures of Prime Age Men, 2016 (a)

                                             Employed,      Long-term
                     Employed,   Employed,   living alone,  not working,
Income or            total       living      low income     living alone
expenditure          alone (b)               (b,c)          (b,d)

Pretax household     98,575      55,898      22,190         12,870
Tax                  15,397       9,449       1,326            566
Posttax household    83,170      46,444      20,861         12,301
Total                64,694      43,508      28,086         20,686
Food                  9,491       6,506       5,091          3,830
Housing              21,250      14,752      10,857          9,221
Apparel and           1,283         721         452            336
Transportation       10,297       6,935       4,664          2,918
Personal care           349         168         129             55
Health care           3,963       2,099       1,222          1,044
Entertainment         3,024       2,015       1,159            975
Alcohol                 722         766         475            179
Tobacco products        325         345         398            459
Other expenditures   13,989       9,200       3,639          1,669

Sources: U.S. Bureau of Labor Statistics, Consumer Expenditure Survey;
authors' calculations.
(a.) The sample includes noninstitutionalized prime age men. The units
are dollars
(b.) Respondents are classified as living alone if there are no other
residents age 18 or over in the household.
(c.) Respondents are classified as low income if their household pretax
income is less than $40,000.
(d.) Long term is defined as more than 12 months.

Table 9. Time Use by Prime Age Men, 2003-16 (a)

                                   Eastern     Western
Activity                  Coasts   heartland   heartland   Coasts

Personal care             530         529         529         598
Household activities       74          83          75         115
Food preparation           76          73          76          67
Caring for others          41          42          41          56
Working                   392         382         401          33
  Searching for work        1           1           1          21
Education                   6           5           6          35
Leisure                   257         262         248         450
  Socializing              36          37          34          51
  Watching TV             137         142         133         258
  Computer use (b)         17          17          17          41
No. of observations    19,213       9,738      10,258       2,590

                       Not working
                       Eastern       Western heartland
Activity               heartland

Personal care             604           587
Household activities      114           122
Food preparation           62            62
Caring for others          51            53
Working                    28            32
  Searching for work       16            21
Education                  22            38
Leisure                   481           449
  Socializing              57            56
  Watching TV             303           269
  Computer use (b)         34            37
No. of observations     1,480         1,068

Sources: U.S. Census Bureau, American Time Use Survey; IPUMS; authors'
(a.) The sample includes civilian noninstitutionalized prime age men in
the continental United States (excluding the District of Columbia). The
data are pooled over 2003-16. The weighted means include respondents
who report zero time spent on an activity. Except for the final row,
the units are minutes per day.
(b.) Computer use includes playing games (activity 120307) and computer
use for leisure, excluding games (activity 120.308).

Table 10. Estimating the Elasticity of the Labor Supply

                           (1)             (2)              (3)
                           OLS             IV               OLS

Log wage (b)              -0.038          -0.093           -0.008
                          (0.027)         (0.080)          (0.021)
Not-working rate,        -12.248 (***)   -22.633 (***)    -12.611 (***)
1980 (c)
                          (2.874)         (4.144)          (2.624)
Log wage x                 1.102 (***)     2.126 (***)      1.152 (***)
rate, 1980 (b,c)          (0.277)         (0.404)          (0.256)
College graduation         0.009           0.045            0.028
rate, 1980 (d)            (0.032)         (0.052)          (0.029)
Share with less           -0.097 (**)     -0.029           -0.107 (**)
than a high school        (0.042)         (0.061)          (0.049)
education, 1980 (e)
Period fixed effects     Yes             Yes              Yes
State fixed effects      No              No               Yes
Implied elasticity
  Wyoming                  0.03            0.05             0.07
  West Virginia            0.14            0.26             0.18
First-stage F
  Log wage                                14.6
  Interaction term                         8.4
No. of observations    1,614           1,614            1,614


Log wage (b)               0.022
Not-working rate,        -28.768 (***)
1980 (c)
Log wage x                 2.772 (***)
rate, 1980 (b,c)          (0.599)
College graduation         0.112 (*)
rate, 1980 (d)            (0.064)
Share with less            0.118
than a high school        (0.126)
education, 1980 (e)
Period fixed effects     Yes
State fixed effects      Yes
Implied elasticity
  Wyoming                  0.20
  West Virginia            0.48
First-stage F
  Log wage                14.4
  Interaction term         7.3
No. of observations    1,614

Sources: U.S. Census Bureau, 1980, 1990, and 2000 censuses. American
Community Survey; IPUMS; authors' calculations.
(a.) The dependent variable is the log employment-to-population ratio.
Data for 1980, 1990. and 2000 are from the decennial censuses; data for
2010 are pooled 2009-11 data from the American Community Survey. The
sample includes civilian noninstitutionalized prime age men in
1980-2000 consistent Public Use Microdata Areas in the continental
United States (excluding the District of Columbia). Robust standard
errors clustered by state are in parentheses. Statistical significance
is indicated at the (***) 1 percent, (**) 5 percent, and (*) 10 percent
(b.) Log wage, expressed in 2016 dollars, is the 25th percentile of
total annual wages for respondents who are currently employed. Changes
in log wages are instrumented using Bartik employment growth shocks,
which are calculated based on predicted growth in employment based on
1980 industry shares within Public Use Microdata Areas and industry
employment growth rates for all workers in the continental United
(c.) The not-working rate is defined as the share of the population not
currently employed.
(d.) The college graduation rate is defined as the share of respondents
who report completion of four or more years of college.
(e.) The share with less than a high school education is defined as the
share of respondents who report completion of eleven or fewer years of
education in the 1980 sample.

Table 11. Estimates of the Optimal Consumption Ratio of Not-Working
Individuals to Employed Individuals

Estimate               Wyoming   Massachusetts   West Virginia

At-risk not-working     39.5        48.6            61.3
rate (2014-16)
Elasticity of the        0.05        0.12            0.26
employment rate
Externality as a        36.3        36.3            36.3
percentage of wages
Ratio of consumption
  [gamma]=0.5            0.919       0.831           0.718
  [gamma]= 1.0           0.958       0.911           0.848
  [gamma]=2.0            0.979       0.955           0.921

Sources: U.S. Census Bureau. Current Population Survey; 1PUMS: authors'

Table 12. A Taxonomy of Place-Based Policies

Policy                   Explicitly spatial    Implicitly spatial

Direct public            Tennessee Valley      Interstate Highway
                         Authority             System
investment               Appalachian           Relocation of
                         Regional              public offices
Tax benefits or grants   New Markets           Agricultural subsidies
                         Tax Credit
for businesses           Program               Oil depletion allowance
                         Cassa del
Tax benefits or grants   Northern Norway       Flood insurance
                         tax benefits
for individuals          Customized training   Nominal tax credits
                                               State and local
                                               tax deductibility
Regulatory relief        Chinese special       Channel Islands
                         economic              financial haven
                         zones                 Heterogeneous
                         Devens Enterprise     regulations
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Author:Austin, Benjamin; Glaeser, Edward; Summers, Lawrence
Publication:Brookings Papers on Economic Activity
Geographic Code:1U5WV
Date:Mar 22, 2018
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