Exploring critical success factors for stakeholder management in construction projects/Kritiniu sekmes veiksniu suinteresuotuju saliu valdymui statybos projektuose tyrimas.1. Introduction
An increasing number of studies (Newcombe 2003; Olander and Landin 2005; El-Gohary et al. 2006) have identified the importance of stakeholder management in construction projects. However, the construction industry has a poor record of stakeholder management during the past decades (Loosemore 2006) owing to the complexity and uncertainty of projects. Many problems of stakeholder management in construction projects proposed by previous scholars include inadequate engagement of stakeholders, project managers having unclear objectives of stakeholder management, difficulty to identify the "invisible" stakeholder, and inadequate communication with stakeholders (Pouloudi and Whitley 1997; Loosemore 2006; Bourne and Walker 2006; Rowlinson and Cheung 2008). In order to solve these problems, project teams need to know what the essentials are for managing stakeholders (Cleland and Ireland 2002).
To identifying the essentials of stakeholder management, Critical Success Factors (CSFs) approach is used in this study. This approach was first developed by Rockart (1979). CSFs can be defined as "areas, in which results, if they are satisfactory, will ensure successful competitive performance for the organisation" (Rockart 1979). Saraph et al. (1989), viewed them as "those criti cal areas of managerial planning and action that must be practised in order to achieve effectiveness". Many researchers (e.g. Chan et al. 2001; Jefferies et al. 2002; Yu et al. 2006) have used this method as a means to improve the performance of the management process. In the field of stakeholder management, Cleland and Ireland (2002) consider important that the project team should know whether or not it is successfully "managing" the project stakeholders. In this paper, CSFs are viewed as those activities and practices that should be addressed in order to ensure effective management of stakeholders.
The review of the literature suggested that there are numerous CSFs that can be identified as being crucial to the successful implementation of stakeholder management. Jergeas et al. (2000) identified 2 aspects of improvements for managing stakeholders, which are: "communication with stakeholders and setting common goals, objectives and project priorities". Landin (2000) considers "the longterm performance of any construction and its ability to satisfy stakeholders" depends on decisions made and the care taken by decision-makers in stakeholder communication. Aaltonen et al. (2008) state that the key issue in project stakeholder management is managing the relationship between the project and its stakeholders. These proposed factors may be the critical successful factors for stakeholder management in construction projects, but most of these studies are descriptive reviews, lack detailed quantitative analysis and fail to prioritize the relative importance of those success factors. In addition, as suggested by Aksorn and Hadikusumo (2008), these factors need to be grouped so that "few and essential CSFs representing a wide variety of issues can be revealed".
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In this regard, it is crucial to explore the relative importance and groupings of factors that are significantly important for stakeholder management in construction projects. Therefore, this paper aims to identify and quantitatively prioritize CSFs associated with stakeholder management in construction projects of Hong Kong, and group the factors into lesser dimensions by using factor analysis.
2. Research methodology
The specific methodology of this study is based on a literature review, 6 face-to-face interviews, a pilot study and a questionnaire survey (Fig. 1). The research flow follows the procedure in the studies of Walker (1997) and Chan et al. (2004).
3. An overview of CSFs for stakeholder management
Factors contributing to the success of stakeholder management in construction projects are first identified by previous studies on this subject. Eight top journals (Construction Management and Economics, Journal of Construction Engineering and Management, Engineering Construction and Architectural Management, Journal of Management in Engineering, International Journal of Project Management, Automation in Construction, Project Management Journal and Building Research and Information) and 4 search engines (Google Scholar, ABI database, EI CompendexWeb, and ISI web of knowledge) were searched by using the keywords of "stakeholder", "project participants", or "project environment". These different sources were tried with the aim of finding the publications about stakeholder management in construction sector as complete as possible, and make a comprehensive review on the captioned topic. The first selection of publications was from abstracts if they were available, and the second selection made after reading the specific documents. In total, 68 publications with respect to stakeholder issues in construction sector remained for analysis at last. The publications consist of journals papers, international conference papers, theses, booklets, reports and some chapters in 8 books.
These publications were reviewed to derive CSFs for stakeholder management in construction projects theoretically. CSFs can also be identified from studies on stakeholder management in general or "the works of those who have addressed a particular factor in detail" (Wong and Aspinwall 2005). An in depth literature review indicated that numerous factors had been identified as important for stakeholder management. Although different terminologies were used in different studies to indicate factors, they can be represented by generic themes (Wong and Aspinwall 2005). Based on the literature review, 15 factors contributing to the success of stakeholder management in construction projects are hypothesized and proposed. These are as follows:
Undertaking social responsibilities
Wood, Gray (1991) believes the stakeholder theory is the theory most often associated with corporate social responsibility, as stakeholders are central to the very concept of corporate social performance. Carroll (1991) suggests, there is a natural fit between the ideas of corporate social responsibility and an organization stakeholders, as the stakeholder concept personalizes social responsibilities by delineating specific groups or persons that business should consider in its corporate social responsibility orientations and activities. Donaldson and Preston (1995) presented taxonomy of stakeholder theory types--normative, instrumental, and descriptive--and used the taxonomy to guide their discussion on the stakeholder literature. They suggest the central core to stakeholder theory is the normative approach, which implies that "organizations should acknowledge the validity of diverse stakeholder interests and should attempt to respond to them within a mutually supportive framework because it is a moral requirement". According to Carroll's definition (1979), social responsibility encompasses "the economic (the obligation to produce goods and services, sell them at fair prices and make a profit), legal (obligation to obey the law), and ethical (issues not embodied in law but expected by society) expectations that society has of organizations at a given point in time". Recently environmental expectation has also been paid a high attention by lots of scholars (e.g. AlWaer et al. 2008; Prager and Freese 2009) for sustainability reasons. The environmental consideration includes air, flora/fauna, dust, water, and noise, and the purpose is to protect environment. As discussed above, scholars have studied social responsibilities of stakeholder management from these 4 perspectives: economic (El-Sawah 2006), legal (Radin 2002; Crow 2008), environmental (AlWaer et al. 2008; Reed 2008; Prager and Freese 2009), and ethical (Phillips 2003; Moodley et al. 2008; Smyth 2008). Therefore, project managers should try to manage stakeholders with corporate social (economic, legal, environmental and ethical) responsibilities (Yang et al. 2008).
Defining project missions
The identification of a clear mission for the projects at different stages is widely considered to be essential for the effective management of stakeholders (Winch 2000). Before every activity of stakeholder management, the project manager should have a better understanding of the tasks and objectives at a particular stage of the project lifecycle, including the issues of cost, schedule, budget, etc. The complexity of client organizations and the social, economic, and regulatory environment in which the projects operate means that "the strategic definition of the project mission is inevitably politicized" (Winch 2000). Using interviews, Jergeas et al. (2000) proved further that "setting common goals, objectives and project priorities" is significant for improving stakeholder management.
Most of scholars studying stakeholder management
(Karlsen 2002; Olander 2006; Walker et al. 2008; Jepsen
and Eskerod 2008) have pointed out the significant importance of identifying stakeholders. Though the project stakeholders can be divided into different types according to various criteria (Pinto 1998), the question of "who are stakeholders?" (Frooman 1999) should be answered first before classifying and managing stakeholders.
Understanding the area of stakeholders' interests
There are various stakeholders' interests due to the complex nature of construction projects (Cleland 1999). Freeman et al. (2007) believe that identifying stakeholder interests is an important task to assess stakeholders, and they listed stakeholders' interests including product safety, integrity of financial reporting new product services, and financial returns. Similarly, Karlsen (2002) also presents one possible consideration to evaluate stakeholders "his or her area of interests in the project".
Exploring stakeholders' needs and constraints in projects
Exploring stakeholders' needs and constraints in projects means to anatomize stakeholders' area of interests and list the detailed issues stakeholders' concerns (Freeman et al. 2007). During the project process, all stakeholders' needs should be assessed "so that a satisfactory and realistic solution to the problem being addressed is obtained" (Love et al. 2004). Homoplastically, Kocak (2003) clarifies that stakeholders' needs can provide an indication of the stakeholder groups' concerns, the problems the project team faces, and stakeholders' requirements of the projects. Further more, Olander and Landin (2008) also proved the importance of "analysis of stakeholder concerns and needs" by case studies in Sweden.
Assessing stakeholders' behaviour
The capacity and willingness of stakeholders to threaten or cooperate with project teams should be measured (Savage et al. 1991) during stakeholder management process. Stakeholders' behaviour can be sorted into 3 categories: observed behaviour, cooperative potential, and competitive threat (Freeman 1984). Freeman et al. (2007) state that project managers need to clearly understand the range of stakeholder reactions and behaviours. By studying a pulp mill construction project in Uruguay, Aaltonen et al. (2008) identified 8 different stakeholders' behaviours/strategies employed to shape salience attributes. This study further demonstrates the significance of assessing stakeholders' behaviours.
Predicting the influence of stakeholders
Project management procedure is affected by project stakeholders (Olander 2007). Therefore recognizing the stakeholders' influence is important to "plan and execute a sufficiently rigorous stakeholder management process" (Olander and Landin 2005). Olander (2007) developed the "stakeholder impact index", and he considers that analyzing the potential impact of stakeholders indicates to determine the nature and impact of stakeholder influence, the probability of stakeholders exercising their influence and each stakeholder's position in relation to the project.
Assessing attributes of stakeholders
The attributes of stakeholders need to be assessed by project teams properly (Mitchell et al. 1997; Bourne 2005). Mitchell et al. (1997) proposed 3 attributes in their study, namely, power, urgency, and legitimacy. Power means the ability to "control resources, create dependencies, and support the interests of some organization members or groups over others" (Mitchell et al. 1997). Bourne and Walker (2005) believe that successful project managers should have the ability to understand the "invisible power" among stakeholders. Urgency is "the degree to which stakeholder claims call for immediate attention" (Mitchell et al. 1997). Legitimacy is "a generalized perception or assumption that the actions of an entity are desirable, proper, or appropriate within some socially constructed system of norms, values, beliefs, and definitions" (Suchman 1995). Bourne (2005) considers the proximity as an important attribute of stakeholders, which can be rated from "directly working in the project" to "remote from the project". Analyzing and estimating these 3 attributes enhance the understanding of project managers on stakeholders.
Analyzing conflicts and coalitions among stakeholders
Conflict occurs whenever disagreements exist in a social situation (Schermerhorn et al. 2003). Analyzing the conflicts and coalitions among stakeholders is an important step for stakeholder management (Freeman 1984). Types of conflict include "substantive conflict and emotional conflict" (Schermerhorn et al. 2003). Project managers should know the potential conflicts stemming from divergent interests (Frooman 1999). Project managers should also search for possible coalitions among stakeholders. This concept comes from Freeman's strategy model (Freeman 1984). He believes the groups, who share objectives, stakeholders or interests about the project, can be more likely to form coalitions.
Since there are various conflicts among stakeholders, compromising these conflicts become important for project managers to make decisions (Freeman 1984). A positive relationship between conflict resolution and satisfaction of stakeholders has been confirmed by Leung et al. (2005) with a questionnaire survey. How to make a "multi-win" compromise solution is a problem faced by project teams (Bana e Costa et al. 2001).
Promoting a good relationship
Successful relationships between the project and its stakeholders are vital for successful delivery of projects and meeting stakeholder expectations (Cleland 1986; Savage et al. 1991; Jergeas et al. 2000; Hartmann 2002). Trust and commitment among stakeholders can be built and maintained by an efficient relationships management (Pinto 1998; Bourne 2005; Karlsen et al. 2008).
Formulating appropriate strategies
Schwager (2004) points out that the central question of stakeholder management was "what are the strategies that organizations use to address stakeholders?". Similar result is obtained by Karlsen (2002) from a survey; he stated that there are different types of the strategies, but basically the stakeholder management strategy is the attitude how the project management team treats different stakeholders. In order to identify different kinds of strategies which are enacted by organizations as responses to the demands presented by external stakeholders, through an empirical analysis of 4 different projects, Aaltonen and Sivonen (2009) explained the use and emergence of the "response strategies". All these scholars have proved the importance of formulating appropriate strategies to deal with stakeholders.
Predicting stakeholders' reactions
'Stakeholders' reactions to the strategies' is an important factor when project managers make decisions about strategies to deal with stakeholders (Freeman et al. 2007). Attention to stakeholder response is also paid by Dias (1999). By applying fuzzy set method, he emphasized his studies on the feasibility and acceptability of strategies for stakeholders. Therefore, a project team should proceed to predict stakeholder behaviour in implementing strategy (Cleland and Ireland 2002).
Analyzing the change of stakeholders
The concepts of the change and dynamics of stakeholders were acknowledged by Freeman (1984). According to him, in reality stakeholders and their influence change over time, and this depends on the strategic issue under consideration. Dynamics of stakeholder is a very interesting and important aspect of the stakeholder concept (Elias et al. 2002). The uncertainty caused by stakeholders includes "who the stakeholders are", the influence of them, their needs, and the implications of relationships among stakeholders (Ward and Chapman 2008).
Ensuring effective communication
Communication is essential for maintaining the support and commitment of all stakeholders (Briner et al. 1996). Effective, regular, and planned communication with all members of the project community is necessary for project success (Briner et al. 1996; Cleland 1995). In addition, Weaver (2007) believes project managers should be highly skilled negotiators and communicators capable of managing individual stakeholder's expectations and creating a positive culture change within the overall organization.
4. Interviews and pilot study
Since the 15 CSFs were identified in the literature review, they should be further confirmed by professionals of construction industry before developing the questionnaire instrument. The preliminary list of CSFs was presented to 6 industrial experts during face-to-face interviews. These experts were selected because they all had more than 10 years overall experience in stakeholder management of construction projects, and they played different roles in projects and on different levels of position (Table 1). The interviews were conducted in the interviewees' office, and lasted for 0.5 to 1 hour, depending on the interviewees' available time slots and how many comments they gave. All interviewees agreed that the proposed 15 factors were critical and comprehensive, and meanwhile some interviewees provided valuable comments on the scope and language of factor statement. For example, the first factor was changed from "Undertaking social responsibilities" to a more detailed description "Managing stakeholders with social responsibilities (economic, legal, environmental and ethical)"; the last factor was changed from "Ensuring effective communication" to "Communicating with and engaging stakeholders properly and frequently", since the interviewees thought "engaging stakeholders" should be emphasised. Another important comment is that regarding the attributes of stakeholders, the interviewees thought that the attribute of legitimacy is imprecise and difficult to operationalize, and they all preferred using the attribute "proximity", which is easier to explain. Considering this comment, and also since the definition of legitimacy is more related with the "norma tive core" for stakeholder theory (Mitchell et al. 1997), which has been considered in the factor about social responsibilities, legitimacy is not included as stakeholders' attributes. These comments were significant for questionnaire development since they promoted description of the factors for better comprehension. The first version of the questionnaire was developed after these interviews.
Prior to sending to questionnaires, a pilot study was conducted. Two project managers, one is client representative and the other is a contractor, were prompted to answer the preliminary questionnaire. The aim of the pilot study was to pre-test the suitability and comprehensibility of the questionnaire. There were no adverse comments proposed, so the finalized questionnaire is the same as that of the first version. The statements of the 15 CSFs are as follows:
C1. Managing stakeholders with social responsibilities (economic, legal, environmental and ethical);
C2. Formulating a clear statement of project missions;
C3. Identifying stakeholders properly;
C4. Understanding area of stakeholders' interests;
C5. Exploring stakeholders' needs and constraints to projects;
C6. Assessing stakeholders' behaviour;
C7. Predicting the influence of stakeholders accurately;
C8. Assessing attributes (power, urgency, and proximity) of stakeholders;
C9. Analyzing conflicts and coalitions among stakeholders;
C10. Compromising conflicts among stakeholders effectively;
C11. Keeping and promoting good relationships; C12. Formulating appropriate strategies to manage stakeholders;
C13. Predicting stakeholders' reactions for implementing the strategies;
C14. Analyzing the change of stakeholders' influence and relationships during the project process;
C15. Communicating with and engaging stakeholders properly and frequently.
5. Design and administration of the questionnaire survey
The questionnaire comprises 4 sections: background information of the respondents; opinions of respondents on stakeholder management; key issues about stakeholder management; comments about the questionnaire. Although the questionnaire survey dealt with various issues relating to stakeholder management in construction projects, this paper only presents the analysis results of the relative importance and groupings of the identified 15 CSFs.
The questionnaire survey was undertaken in Hong Kong in August 2008, and the target of this survey was project managers from different organizations in the construction industry. The information about project managers, including their name, phone, email and mail address, was collected randomly from the Internet, newspapers, magazines, the membership lists of 2 institutes (the Association for Project Management Hong Kong, and the Hong Kong Construction Association), and the register lists published by the Buildings Department of Hong Kong. 654 questionnaires were delivered to the potential respondents by mail and email. Respondents were requested to rate their degree of agreement against each of the identified CSFs according to a five-point Likert scale (1 = Strongly Disagree and 5 = Strongly Agree) with reference to a particular project they had been involved in. About 3 weeks were given to the respondents to complete and return it. The ways for retrieving it include mail, email and fax. 183 completed questionnaires were received consisting of 81 respondents from client organizations, 45 from contractors companies, and 57 from consultant organizations. The response rate was 28%, which was consistent with "the norm of 20-30% with most questionnaire surveys in the construction industry" (Akintoye 2000).
6. Data analysis and key findings
The obtained raw data were inputted and analysed with the aid of the Statistical Package for Social Sciences (SPSS) computer software. Three types of analysis were conducted. These methods had been used by other similar survey studies carried out by Akintoye (2000), Chan et al. (2004), Wong and Aspinwall (2005), and Aksorn and Hadikusumo (2008). According to Pallant (2001), only when the parametric assumptions (normal distribution and homogeneity of variance) are fulfilled, the matched parametric testing methods can be employed. Since those assumptions are not fulfilled in this survey, the parametric methods were not used. The process of data analysis is as follows.
First, the relative importance of the 15 CSFs was explored based on responses. This type of scale has been found to be acceptable in several construction management researches (e.g. Wang et al. 1999; Chan et al. 2003; Li et al. 2005). Kendall's Coefficient of Concordance was calculated for measuring the agreement of respondents on their rankings of CSFs. The Spearman's rank correlation test was used to examine the general similarity on the rankings of CSFs between respondents from client, contractor and consultant companies.
Second, a factor analysis was used to determine the underlying relationships among the 15 CSFs. The principal component analysis for factor extraction was applied to categorize the CSFs into a fewer number of groupings.
Third, since Wong and Aspinwall (2005) have pointed out that validating and refining the CSFs is important for data analysis, reliability and validity tests of the raw data were conducted depending on the overall data and results of factor analysis.
6.1. Ranking of CSFs
The analysis of the survey response data produced the means for the 15 CSFs ranging from 3.80 to 4.43, which indicated that all respondents consider these 15 factors critical for stakeholder management in construction projects. Ranking and Kendall's coefficient of concordance for the CSFs are shown in Table 2. The highest ranking by all respondents was "managing stakeholders with social responsibilities (economic, legal, environmental and ethical)" (mean = 4.43), which therefore was considered as an extremely influential factor to the success of stakeholder management. "Exploring stakeholders' needs and constraints to projects" and "communicating with and engaging stakeholders properly and frequently" (mean = 4.26) were both ranked as the second most influential factors. The 4th ranked factor was "understanding area of stakeholders' interests" (mean = 4.22), whereas the 5th ranked factor was "identifying stakeholders properly" (mean value = 4.21); the 6th factor was "keeping and promoting a good relationship" (mean value = 4.17). These 6 factors were the top six CSFs for stakeholder management in construction projects of Hong Kong. In addition, it is worth noting, that all respondents perceived "predicting stakeholders' reactions for implementing the strategies", "analyzing the change of stakeholders' influence and relationships during the project process" and "assessing stakeholders' behaviour" as the 3 least influential factors.
In order to examine whether the respondents ranked the 15 CSFs in a similar order, Kendall's coefficient of concordance was calculated. According to Yeung et al. (2007), if the concordance coefficient is equal to 1, it means that all the respondents rank the CSFs identically; in contrast, if the concordance coefficient is equal to 0, it means that all the respondents rank the CSFs totally differently. The Kendall's coefficient of concordance for ran king the 15 CSFs in Table 2 was 0.122, which was statistically significant at 1% level. This suggested that there was a general agreement among 183 respondents on ranking the 15 CSFs; that is, the respondents shared similar values about the relative importance of these 15 CSFs. In order to examine the general similarity on the rankings of CSFs between respondents from client, contractor and consultant companies, the Spearman's rank correlation test was used to show whether or not the similarities are significant (Singh and Tiong 2006). The results of this test were interpreted by correlation coefficients (r). The value of these coefficients indicates the strength of the correlation between 2 variables. If r is significant at 5% level, this means the 2 variables have a strong correlation. Table 3 shows the correlation coefficients (r) of different pairs of respondents, i.e. r is 0.624 between respondents from client and contractor companies. These statistical results indicate a general consensus on the rankings of the CSFs among different groups of respondents; therefore, no matter the respondents from client, contractor or consultant companies, they rank the 15 CSFs similarly in general.
6.2. Factor analysis of the CSFs
Norusis (1992) and Li et al. (2005) state that "factor analysis is used to identify a relatively small number of factor groupings that can be used to represent relationships among sets of many inter-related variables". In this survey, this method was used to determine the groupings of the 15 CSFs.
According to Pallant (2001), 2 main issues have to be considered in determining whether a data set is suitable for factor analysis: sample size and the strength of the relationship among the factors. In terms of sample size, Nunnalyy (1978) recommends a 10 to 1 ratio; that is, "10 cases for each item to be factor analysed". The minimum number for factor analysis suggested by Pallant (2001) is 150. There were 15 factors in this survey, so according to Nunnalyys' recommendation (1978), 150 respondents should be obtained. Actually 183 respondents have been obtained in this study. The number was larger than 150. Therefore, the sample size was enough for factor analysis. In terms of the strength of relationship among the factors, the correlation matrix (Tabachnik and Fidell 1996), the Bartlett's test of sphericity (Bartlett 1954), and the Kaiser-MeyerOlkin (KMO) (Kaiser 1970) were recommended. Most values in the correlation matrix are larger than 0.3, the Bartlett's test of sphericity is significant (p<0.05), and the value of the KMO index is above 0.6, suggesting the data set is suitable for factor analysis. In this survey, more than a half of the correlation coefficients (Table 4) were above 0.3, the Bartlett's test of sphericity was significant (p<0.05) (Table 5), and the value of the KMO index was 0.870 (above 0.6) (Table 5). The results of these tests confirmed that the data were appropriate for factor analysis.
A 4-component solution was produced based on Varimax rotation of principal component analysis (Table 6). These 4 factor groupings with eigenvalues greater than 1.000 explain 61.532% of the variance. Each of the CSFs belonged to only one of the groupings, with the value of factor loading exceeding 0.50 (Norusis 1992; Li et al. 2005; Aksorn and Hadikusumo 2008). It was noticed that C1 "Managing stakeholders with social responsibilities (economic, legal, environmental and ethical)" do not belong to any of the factor groupings. The residual 14 CSFs can be grouped into 4 principal components, and the corresponding importance ranking of the extracted components was: (1) stakeholder estimation, (2) information inputs, (3) decision-making, and (4) sustainable support.
Component 1: stakeholder estimation
This component, which accounted for 37.44% (Table 6) of the total variances between critical success factors, was relatively more important than the other 3 components. It indicated that project managers in Hong Kong consider estimating stakeholders significant for stakeholder management in construction projects. To enhance the understanding of project managers on stakeholders, their attributes, behaviour, and potential influence need to be assessed and estimated. The conflicts and coalitions among stakeholders also could be analysed based on the information about stakeholders. Therefore, this component, which relates to estimate stakeholders, could be illustrated by C8, C6, C7, and C9.
Component 2: information inputs
This component ranked second among the 4 components (Table 6). Four CSFs comprise the elements of this component regarding information input. Before any management activities, comprehensive information about the project and stakeholders around it needs to be obtained. The information includes project missions, full list of stakeholders, area of stakeholders' interests, and their needs and constraints to the project. The stakeholders could be managed depending on these inputs.
Component 3: Decision-making
Three CSFs were included in this component relating to decision-making. Project managers have the responsibility to compromise conflicts among stakeholders, and formulate appropriate strategies to manage stakeholders. During the process of decision-making, project managers always try to predict the reaction of stakeholders and choose the optimal solution for managing stakeholders.
Component 4: Sustainable support
Though this component ranked least among the 4 components (Table 6), it is indispensable for stakeholder management. The reason is that if the first 3 components could be considered as factors regarding one management process, this fourth component is related to the sustainability of stakeholder management. Construction projects are transient (Bourne 2005), but organizations are correspondingly permanent. Since many stakeholders, such as government, local communities and media, would be involved at later stages of the project process or in future projects, project managers, as the representatives of different organizations, have the responsibility to realize the change of their influence and relationships, promote a steady relationship with them, and communicate with them properly and frequently.
6.3. Validation of the CSFs
Testing for reliability of a scale Cronbach's Coefficient Alpha was used to examine internal consistency of the scales under the headings of the CSFs. Alpha values greater than 0.7 are regarded as sufficient (Pallant 2001). The results of Cronbach's Coefficient Alpha in this survey were in the range of 0.8625 to 0.8763. This provides evidence mat all tne tactors nave a mgn internal consistency and are reliable.
Testing for content validity
Ahire et al. (1996) believe that if the measurement items in the survey "adequately cover the content domains or aspects of the concept being measured", an instrument has content validity. Gotzamani and Tsiotras (2001), Wong and Aspinwall (2005) also have clarified that "it is not assessed numerically, but can only be subjectively judged by the researchers". As discussed in Section 3, the CSFs listed in this survey were identified by a comprehensive review of relevant literature and validated by several interviews and pilot studies with the professionals in the construction industry. Therefore, it was believed that the whole questionnaire has valid contents.
Testing for construct validity
Construct validity was used to check for unifactoriality
(Black and Porter 1996). Antony et al. (2002) clarified that
"unifactoriality means that a single factor is extracted for each test". Each factor grouping was evaluated by factor analysis for construct validity. Table 7 presents results of the unifactorial test. Since all of the KMO value were greater than 0.5, and the percentage of variance explained by each component was more than 56 %, all 4 components were demonstrated to be unifactorial.
Results of the 3 tests
Since all the factors have high internal consistency, the whole questionnaire has valid contents and all 4 components were demonstrated to be unifactorial, the CSFs developed in this study were both reliable and valid.
7. Discussions of survey results
The research findings indicate that C1 "Managing stakeholders with social responsibilities (economic, legal, environmental and ethical)" ranked first in the 15 CSFs for stakeholder management in construction projects. This means that project managers considered this factor as the most important one for the success of stakeholder management. As discussed in the overview (Section 3), this finding was in line with several researchers' statements (e.g. Wood 1991; Carroll 1991; and Donaldson and Preston 1995). However, according to the results of factor analysis, this factor could not be included in any of the 4 components. Owing to the significance of this factor, the authors name this factor as the "precondition factor" for stakeholder management; that is, stakeholder management should be conducted with social (economic, legal, environmental and ethical) responsibilities. Under this precondition, and including the 4 components extracted by factor analysis, a framework for successful stakeholder management in construction projects is proposed in Fig. 2.
The framework in Fig. 2, which presents 5 factors groupings, contributes to the success of stakeholder management and their relationships. The 5 factors groupings are the "Precondition factor" and the 4 components extracted by factor analysis, which are stakeholder estimation, information inputs, decision-making, and sustainable support. Since the factor about social responsibilities (C1) is the precondition of any activities for managing stakeholders, it is put on the top of the other 4 groupings in Fig. 2. According to general management process, information should be inputted first during the process of stakeholder management, and then stakeholders could be estimated based on the information obtained. After accurately assessing stakeholders, decisions could be made. Sustainable support need to be conducted during the whole process of stakeholder management, because in order to promote the management process, project managers need to monitor the change of stakeholders' influence and relationships, try to keep a steady relationship with them, and most importantly communicate with them properly and frequently.
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The importance of stakeholder management has been recognized by many scholars and professionals. With a focus on different aspects of stakeholder management, various sets of CSFs have been suggested in the literature. It is crucial to explore the relative importance and groupings of these factors. This paper presented a part results of a questionnaire survey, and aims to identify CSFs associated with stakeholder management in construction projects of Hong Kong, and explore their ranking and underlying relationship.
The main contribution of this study is identifying an ordered and grouped set of CSFs for stakeholder management in construction projects of Hong Kong. 15 CSFs were identified through a literature review, face-to-face interviews and pilot studies. Based on a questionnaire survey, the ranking of these CSFs were obtained. This helps clarify what the highly prioritized factors are. The top 3 factors were: (1) managing stakeholders with social responsibilities (economic, legal, environmental and ethical), (2) exploring the stakeholders' needs and constraints to the project, and (3) communicating with and engaging stakeholders properly and frequently. Using the factor analysis and considering the high importance of the factor "managing stakeholders with social responsibilities" the 15 CSFs were grouped into 5 dimensions: precondition, factor, stakeholder estimation, information inputs, decision-making, and sustainable support. All these 5 groupings and their relationship were included in a framework for successful stakeholder management in construction projects. These findings could also be used as an assessment tool to evaluate the performance of stakeholder management and thus help identify areas for improvement. Since the results in this paper are based on a questionnaire survey, the respondents may have different understandings about our statements, and this may bias the scoring of the CSFs. Therefore, the findings in this paper should be further validated by case studies, of which the details will be presented in a new article. In addition, since the interviews and questionnaire survey were conducted locally in Hong Kong, the findings may not be generalized to the other geographical locations.
In future studies, the same research procedure should be conducted in other locations which have different cultures from Hong Kong to seek the similarities and differences of the CSFs for stakeholder management in construction projects.
The work described in this paper was supported by the Hong Kong Polytechnic University and the Research Grants Council of the Hong Kong Special Administrative Region, China (PolyU 52644/06E). Special gratitude is also extended to those industrial practitioners who have responded to and contributed their valuable input in completing the questionnaire.
Received 05 Feb 2009; accepted 23 Sept 2009
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Jing Yang (1), Geoffrey Qiping Shen (2)*, Manfong Ho (3), Derek S. Drew(4), and Albert P. C. Chan(5)
Dept of Building and Real Estate, The Hong Kong Polytechnic Univ., Hong Kong E-mails: (1) email@example.com; (2) Corresponding author: firstname.lastname@example.org; (3) bscrysta@polyu. edu. hk; (4) dereksdrew@hotmail. com; (5) bsachan@polyu. edu. hk
Ms. Jing YANG worked for the construction industry in the field of Quantity Surveying before switching to academia. Now she is a PhD student at the Department of Building and Real Estate, The Hong Kong Polytechnic University. Her research interests are in stakeholder management and social network analysis. She is also a committee member of the Hong Kong Institute of Value Management.
Professor Geoffrey Qi-Ping SHEN is an active researcher in group dynamics, value management, and partnering. He has led a large number of research projects with total funding over HK $20 million including 7 successful RGC CERG, and published more than 100 papers in international refereed journals. He teaches extensively in these fields and has successfully supervised a number of PhD students. Professionally, he serves as the President of the Hong Kong Institute of Value Management; member of the Institute of Value Management (UK). As a certified value specialist (US) and value management facilitator (HK), he has professionally designed and facilitated a number of value management and/or partnering workshops for a variety of large projects.
Dr Christabel M. F. HO worked for the construction industry in the field of quantity surveying before switching to academia. She is a Chartered quantity surveyor and building engineer by profession. Member of both the Chartered Institute of Building and the Australian Institute of Building. Also a member of the Australian Institute of quantity surveyor. She completed her PhD at the University of New South Wales (Australia). Her current research interests include professional ethics and construction management.
Dr Derek S. DREW is an Associate Professor at the Department of Building and Real Estate, The Hong Kong Polytechnic University. His research interests include tendering, and competitiveness of contractors and consultants.
Professor Albert Ping-Chuen CHAN is a Professor and Associate Head at the Department of Building and Real Estate, The Hong Kong Polytechnic University. His research interests include project management and project success, project finance and public private partnerships, construction procurement and relational contracting, construction industry development and construction safety.
Table 1. Expert profiles Role in Experience Expert projects Position (years) 1 Client Chief project manager 21 2 Client Senior project manager 15 3 Consultant Site project manager 12 4 Client Site project manager 15 5 Contractor Senior project manager 13 6 Contractor Site project manager 11 Table 2. Ranking of the 15 CSFs CSFs Mean Rank C1. Managing stakeholders with social responsibilities 4.43 1 (economic, legal, environmental and ethical) C5. Exploring stakeholders' needs and constraints to 4.26 2 projects C15. Communicating with and engaging stakeholders 4.26 2 properly and frequently C4. Understanding the area of stakeholders' interests 4.22 4 C3. Identifying stakeholders properly 4.21 5 C11. Keeping and promoting a good relationship 4.17 6 C9. Analyzing conflicts and coalitions among 4.04 7 stakeholders C7. Predicting the influence of stakeholders 4.02 8 accurately C12. Formulating appropriate strategies to manage 3.97 9 stakeholders C8. Assessing attributes (power, urgency, and 3.91 10 proximity) of stakeholders C10. Compromising conflicts among stakeholders 3.88 11 effectively C2. Formulating a clear statement of project missions 3.87 12 C13. Predicting stakeholders' reactions for 3.83 13 implementing the strategies C14. Analyzing the change of stakeholders' influence 3.83 13 and relationships during the project process C6. Assessing stakeholders' behaviour 3.80 15 Notes: Number = 183. Kendall's coefficient of concordance = 0.122. Level of significance: 0.00. For 'Mean scores': 1 = least important and 5 = most important. Table 3. Spearman rank correlation coefficients Client/ Client/ Contractor/ Respondents Contractor Consultant Consultant r .624 * .893 * .803 * * Correlation is significant at 0.05 level (2-tailed). Table 4. The correlation matrix of the CSFs CSFs C1 C2 C3 C4 C5 C6 C7 C8 C9 C1 1.00 .245 .266 .331 .322 .115 .265 .243 .217 C2 .245 1.00 .420 .352 .274 .153 .210 .063 .220 C3 .266 .420 1.00 .489 .406 .307 .316 .255 .270 C4 .331 .352 .489 1.00 .586 .408 .412 .324 .413 C5 .322 .274 .406 .586 1.00 .280 .365 .256 .414 C6 .115 .153 .307 .408 .280 1.00 .534 .430 .410 C7 .265 .210 .316 .412 .365 .534 1.00 .545 .463 C8 .243 .063 .255 .324 .256 .430 .545 1.00 .419 C9 .217 .220 .270 .413 .414 .410 .463 .419 1.00 C10 .243 .331 .300 .248 .194 .286 .433 .254 .358 C11 .357 .307 .302 .331 .396 .323 .365 .292 .270 C12 .322 .314 .373 .357 .257 .262 .377 .219 .306 C13 .313 .240 .427 .302 .229 .292 .487 .329 .320 C14 .248 .192 .327 .390 .358 .429 .437 .298 .520 C15 .266 .105 .192 .279 .354 .232 .217 .076 .237 CSFs C10 C11 C12 C13 C14 C15 C1 .243 .357 .322 .313 .248 .266 C2 .331 .307 .314 .240 .192 .105 C3 .300 .302 .373 .427 .327 .192 C4 .248 .331 .357 .302 .390 .279 C5 .194 .396 .257 .229 .358 .354 C6 .286 .323 .262 .292 .429 .232 C7 .433 .365 .377 .487 .437 .217 C8 .254 .292 .219 .329 .298 .076 C9 .358 .270 .306 .320 .520 .237 C10 1.00 .347 .416 .471 .276 .160 C11 .347 1.00 .459 .339 .345 .347 C12 .416 .459 1.00 .512 .471 .411 C13 .471 .339 .512 1.00 .489 .125 C14 .276 .345 .471 .489 1.00 .414 C15 .160 .347 .411 .125 .414 1.00 Table 5. Bartlett's test for the CSFs and KMO Bartlett's test of sphericity Approx. Chi-Square 960.363 df 105 Sig. .000 Kaiser-Meyer-Olkin measure of sampling adequacy .870 Table 6. Results of factor analysis % of Name of CSFs Factor Components Eigenvalue variance components (a) (b) loading 1 5.618 37.455 Stakeholder C8 .760 estimation C6 .727 C7 .713 C9 .649 2 1.347 8.978 Information C2 .713 inputs C3 .676 C4 .678 C5 .636 3 1.181 7.872 Decision- C13 .727 making C10 .713 C12 .617 4 1.084 7.227 Sustainable C15 .873 support C14 .535 C11 .501 (a) Components were named based on the characteristics of its CSFs in that group, (b) The meanings of C2 to C15 are given in the list of CSFs in section 4. Table 7. Unifactorial test Percentage variance Component KMO value Factor loading Eigenvalue explained 1 0.776 0.728-0.831 2.405 60.132 2 0.721 0.646-0.825 2.275 56.880 3 0.653 0.744-0.814 1.817 60.556 4 0.606 0.697-0.848 1.789 59.622