Social Responsibility Initiatives for Public-Private Partnership Projects: A Comparative Study between China and Ghana

: Sustainability is a global issue and its enhancement through modern forms of procurements, such as public-private partnership (PPP), has become topical considering the huge impact of PPP activities on society, the economy, and the environment. However, one way of promoting sustainability thorough PPPs is the adoption of social responsibility (SR) initiatives/factors. This paper aims to empirically investigate the SR factors in PPPs through a comparative study between China and Ghana. An empirical questionnaire survey was conducted in both China and Ghana. Further, the mean score ranking, Kendall’s coefﬁcient of concordance, and Mann-Whitney U test were used for data analysis. Results show that SR factors related to the economic efﬁciency of PPP projects and climate change adaptation are critical in China, whereas in Ghana, SR factors directly related to job creation and environmental protection are critical. The outputs of this study inform investors of the critical SR initiatives to consider when engaging in PPPs in Asia and Africa. In addition, they provide a solid knowledge base for the continuous international debate on how sustainability could be enhanced through PPP policy.


Introduction
The concept of public-private partnership (PPP) has continuously evolved over the past couple of decades and it is now argued to have considerable advantages over the traditional bid build method [1,2]. In fact, PPP is seen by many governments as a major tool to bridge their huge infrastructure gap and minimize pressure on the public purse [3]. A report by the World Bank [4] indicated that in 2016, around 242 PPP projects accounting for US$71.5 billion were initiated in emerging markets and developing economies. Of these investments, the Latin America and Caribbean region, driven by Brazil, had the highest share of the investments. Other regions with an increase in PPP investments included East Asia and Pacific, and South Asia. Indeed, these outcomes clearly show the growing interest by many governments, particularly those in developing countries, in the PPP concept.
Importantly, one critical issue that is emerging with the rapid development of PPPs is how sustainability could be enhanced through the PPP concept [5,6]. Generally, sustainability is a very efforts are required by policy makers and governments, particularly those in developing countries, to find alternative solutions to the rapid increase in the demand for infrastructure development [32].
Since PPP first emerged, some countries have progressed rapidly with its implementation, whereas many are yet to undertake full-scale implementation of the policy. The major reasons for this situation include the high cost of transaction, poor legal environment, lack of accountability, political interference, weak public institutional structures, high use of unsolicited proposals, and poor macroeconomic conditions [11,30]. Because of the many reported problems, the last decade has seen a large strand of research studies investigating how to deliver PPPs successfully (i.e., critical success factors for PPPs) [33]. Other studies have also focused on how risks could be shared and managed efficiently among project parties [17]. The majority of studies on risk management in PPPs concluded that risks should be allocated to the party with a better mitigation plan and capability. Further, the public sector should not attempt to impose too many risks on the private sector [14]. Value for money in PPPs has also been extensively studied by many researchers [24]. Some value for money measures proposed by past studies include the provision of output-based specifications instead of detailed input specification, competitive tendering, and technological innovation [24].
Despite the existence of a large strand of literature on PPPs, sustainability in PPPs has received little attention in the normative literature. This is not surprising because sustainability has only become topical in infrastructure development recently (after careful consideration by policy makers and governments for the need to preserve the environment and ecosystem). Thus, previous studies on PPPs may not have considered it as being critical. However, in modern times, it has become imperative for researchers to focus on how sustainability and social responsibility could be enhanced through the PPP concept due to the complexities and detrimental effects that PPPs can have on the society and ecosystem. This study therefore seeks to contribute to the ongoing debate and discussion on how sustainability and social responsibility initiatives could be promoted through PPPs.

Review of Social Responsibility (SR) Factors for Sustainable Development in PPPs
Social responsibility integrates social, environmental, and ethical human rights and user concerns into an operation or process [34]. Through SR initiatives, organizations are able to incorporate in their strategy and decisions the social and environmental effects of their activities [8]. SR is an important issue in PPPs because it has become the agenda of many governments to promote sustainable development-a development that meets the needs of the present without compromising the ability of future generations to meet their own needs [5]. Though many governments are keen to bridge their huge infrastructure gaps through PPPs, they are also conscious of the fact that PPPs involve a complex myriad of activities; therefore, they have a huge impact on society, the economy, and the environment [35]. Similarly, while private sector organizations aim to make more profits through PPPs [24,25,36], they are aware of how society is affected by PPP activities and agreements [7].
The majority of SR initiatives often adopted in PPPs are focused in areas, such as environmental health and safety, poverty reduction, sanitation, education, and transparency [9,35]. Ensuring transparency and anti-corruption is critical in gaining the general public's positive perception of PPPs [37]. Society tends to react negatively by engaging in demonstrations when PPP contract details and tendering process are not made public. It becomes even more irritating to society when project parties attempt to justify their lack of transparency on the basis of confidentiality. As suggested by the Danish International Development Agency (DANIDA) [38], the private sector organization should work against all forms of corruption, such as extortion and bribery, when engaging in PPP deals. Likewise, public officials, particularly political leaders, should desist from influencing the selection process.
Job creation is an essential SR initiative in PPPs [39,40]. This SR factor is even more critical in communities and regions with high unemployment youth rates [7]. Considering that PPP is a long-term contract, which involves a series of activities, it is generally expected that the numerous activities, including construction, operation, and maintenance, will provide job opportunities to local residents [41]. The job opportunities will enable unemployed local residents to get some source of livelihood and therefore improve their standard of living. In fact, in some situations, the activities in the PPP project lifecycle may not necessarily need to provide jobs, but upon completion of the project, opportunities should be available for local residents to engage in commercial activities and enterprises [33]. The quality of service is also reported to be important in ensuring SR in PPPs [42,43]. It implies a delivery of services that is in line with output specifications and standards. The provision of services that meet the expectations of users helps eradicate the negative perceptions of the general public of PPP deals. On the other hand, when the quality of service is poor and below expectations, users tend to raise questions on whether the value for money was thoroughly assessed.

Pilot Study
The checklist of SR factors developed by Yu et al. [7] was adopted for this study. However, to ensure the applicability and suitability of the checklist within the Chinese and Ghanaian context, six PPP experts, three from each country, were invited to review the checklist. The experts were selected based on their in-depth experience and knowledge on PPP practice (i.e., >10 years) within the Chinese and Ghanaian context. The experts recommended that some SR factors should be rephrased, including "protecting cultural heritage", "noise prevention", and "improving local policy". The finalized set of SR factors is shown in Table 1.

Collection of Data
A questionnaire survey was conducted in both China and Ghana with experts to evaluate and compare the significance of 30 SR factors for PPPs. Apparently, surveys are one of the most widely used research methods in PPP research because of the sensitive nature of issues related to it [37]. Notwithstanding, the questionnaire survey method is usually appropriate for comparative studies because it allows the researcher to measure parameters among two jurisdictions on the same basis using a common research instrument. In this regard, a survey was considered suitable to evaluate the SR factors among China and Ghana. The questionnaire requested the respondents to rate the importance of each SR factor on a five-point Likert scale as applied in their respective jurisdiction. Targeted respondents were selected based on two criteria: (1) Having in-depth knowledge of PPPs, including following the development of PPPs in China or Ghana closely; and (2) having adequate direct hands-on and/or research experience in terms of publications in China or Ghana [26].
Considering these pre-defined criteria, 170 and 150 potential respondents in China and Ghana, respectively, were identified and invited to participate in the study. Essentially, many of the respondents from China were from cities that have vibrant PPP markets. These include Beijing, Qingdao, Chengdu, and Yibin. Whereas in Ghana, the majority of the identified respondents came from public institutions that are actively involved in PPP deals (e.g., Ghana Highways Authority, PPP Advisory Unit, Urban Roads Department, Ministry of Trade and Industry) [44]. Questionnaires were distributed to respondents by face-to-face meetings and/or email. Specifically, questionnaires distributed in cities in Sichuan Province, i.e., Chengdu and Yibin, were distributed by face-to-face, whereas those distributed in Beijing and Qingdao were by email. For Ghana, questionnaires were sent to potential respondents solely by email. Overall, 84 responses were received; 34 from China and 52 from Ghana [44]. These represent response rates of 18.82% and 34.67% for China and Ghana, respectively. Essentially, the response rates from both countries are low, however, the sample sizes are considered suitable for further analysis when compared with similar comparative studies conducted in PPPs (e.g., Chan et al.   [57] Adapted from [7]. These notwithstanding, the majority of respondents from China (i.e., 78%) and Ghana (i.e., 79%) are industry practitioners (public and private sectors), which implies that most of the respondents are involved with the intricacies and actualities of PPP practices in both countries. Moreover, a large number of the respondents from both countries (i.e., 84.4% from China and 80.8% from Ghana) have more than 5 years of industrial and/or research experience in PPPs. Therefore, this signifies the authenticity of the survey responses for further analysis. A detailed background of the respondents from both countries is shown in Table 2 [44].

Tools for Data Analysis
The Statistical Package for Social Sciences (SPSS) was used to conduct a statistical analysis, including Kendall's coefficient of concordance, mean analysis, and Mann Whitney U test. First, considering that respondents from different PPP sectors (i.e., academic, public, and private) participated in this study, the Kendall's concordance test was conducted to determine the level of consistency and agreement among the responses from each respondent group (i.e., China and Ghana) [58]. The test was conducted at a significance level of 0.05, thus a significance test value below 0.05 indicates that there is significant consistency and association on the rankings furnished by the respondents [59]. Second, a mean analysis was conducted to evaluate the importance of each SR factor in each jurisdiction. However, to determine the critical SR factors that need careful attention from practitioners in each jurisdiction, the range normalization technique was conducted. Lastly, the Mann-Whitney U test was conducted to ascertain the significant differences in the rankings of the SR factors between China and Ghana. The test was conducted at a significance level of 0.05, thus a significance test value below 0.05 signifies that respondents from both countries have varying views on the importance of that SR factor.

Consistency and Agreement Test
Kendall's coefficient concordance test was conducted to ascertain the level of consistency and association among responses in each independent group (i.e., China or Ghana). The test was conducted with a null hypothesis that there is no degree of consistency among the rankings of the SR factors. In this regard, a significance test value below 0.05 rejects the null hypothesis. As shown in Table 3, the Kendall's concordance (W) for China and Ghana are 0.314 and 0.236, respectively; further, each independent group has a significance test value of 0.00. Therefore, the null hypothesis is rejected, signifying that there is a significant degree of consistency and homogeneity on the rankings of the 30 SR factors within each respondent group. This therefore reaffirms the reliability and authenticity of the survey responses furnished by the experts in each country.  Clearly, this shows that the Ghanaian respondents generally ranked the set of factors more similarly than their Chinese counterparts. In addition, the Ghanaian respondents rated the set of SR factors as being higher than their Chinese counterparts. Further detailed analysis using the range normalization method indicates that 11 SR factors are critical in China, whereas in Ghana, 18 SR factors are critical. This implies that the set of SR factors is generally more important in Ghana compared to China. This outcome is unsurprising because China has a matured PPP market, therefore, it successfully employed more SR measures over the last decade. Whereas in Ghana, the PPP concept was revitalized in 2011 and since then, few projects have been implemented, therefore, few SR initiatives have been successfully employed. The results of the significance test using Mann-Whitney U are shown in the last column of Table 4. As previously mentioned, the test was conducted at a significance level of 0.05, thus a significant test value of a SR factor below 0.05 indicates that respondents from China and Ghana have different perceptions on the importance of that SR factor. As presented in the table, 12 SR factors had different views on their importance among the Chinese and Ghanaian respondents. Essentially, the SR factors with significant differences that are ranked higher in China and lower in Ghana relate to the economic efficiency of PPP projects and climate change adaptation. These include: "Improve resource performance and efficiency", "profitability", "efficient maintenance", "appropriate resettling, rehabilitation and compensation", and "improve climate resilience and air quality".

Mean Analysis and Significant Difference(s) on the Rankings of SR Factors in China and Ghana
"Improve resource performance and efficiency" is ranked 3rd and 27th by the Chinese and Ghanaian respondents, respectively. In fact, it has a mean difference of 1.05 (4.47 (China)) and 3.42 (Ghana). PPP projects usually utilize a wide range of resources, including land, human, technology, construction and operational materials, and finance. Essentially, these resources have to be efficiently utilized in order to minimize project costs and enhance the value for money [24]. Considering the rapid implementation of PPPs in China, many resources, particularly land, are utilized for PPP projects. Therefore, over the last couple of years, it has become the agenda of many Chinese local governments to ensure the application of smart technologies in PPPs to enhance the efficient utilization of limited resources in China. A typical example is the use of building information modelling in estimating the costs in some Chinese PPP projects. This approach enhances cost efficiency and further ensures optimal allocation of resources. Unlike China, Ghana has implemented very few projects and therefore has not utilized much of the nation's resources for PPP deals. Therefore, enhancing resource performance through the use of smart technologies may not be critical, as indicated by the respondents.
"Profitability", "efficient maintenance", and "appropriate resettling, rehabilitation and compensation" are ranked 4th, 1st, and 19th in China, respectively, whereas in Ghana, they are ranked 29th, 5th, and 26th. Importantly, these SR factors have wide mean differences between China and Ghana: 1.36 (profitability), 0.45 (efficient maintenance), and 0.18 (appropriate resettling, rehabilitation, and compensation). Profitability is generally critical in measuring the economic efficiency of PPP transactions [17]; however, it is more crucial to the private sector organization compared to public institutions [40]. Chan et al. [3] pointed out that the adoption of PPPs in China is generally driven by economic related factors, including profit. This suggests that profitability is considered to be a part of the factors that generally determines the efficiency of PPP projects in China. This is quite understandable because both the Chinese government and investors have put a lot of capital in PPP projects over the years; therefore, they expect excessive returns on their investments. In fact, in 2016, the World Bank [4] reported that China's PPP investments reached US$11.4 billion. Indeed, for the Chinese PPP market to be sustainable, the generation of more profits through efficient risk allocation is critical considering the amount of capital invested over the years. Although, Osei-Kyei and Chan [33] have indicated that profitability is a critical success measure in Ghana, it is not an important social responsibility factor in the Ghanaian context and this may be due to the limited amount of capital invested in the Ghanaian PPP market over the years, i.e., US$2.05 billion in 2016 [4]. Essentially, this amount of investment is not comparable to that of the Chinese PPP market. Efficient maintenance implies a reduction in the operation and maintenance costs of PPP projects. It entails the adoption of innovative techniques to reduce the running and administration costs of PPP projects. Apparently, to ensure profitability, it is essential that the operation and maintenance costs of PPP projects are kept low. Therefore, is not surprising that the Chinese respondents ranked this SR factor higher compared to their Ghanaian counterparts, who considered profitability as a low critical SR factor. The high ranking of "appropriate resettling, rehabilitation, and compensation" in China compared to Ghana is unsurprising because the compensation and resettlement of persons due to PPP project development have become topical in the Chinese PPP market in the last couple of years. Displaced persons, especially rural dwellers, often complain of inadequate compensation claims for their properties (particularly farm lands) [60,61]. Although the Chinese government has enacted regulations to curb this situation, more proactive actions are needed to ensure compliance with these policies by local government authorities [60].
"Improve climate resilience and air quality" is directly rated to climate change adaptation. It is ranked 20th with a mean value of 3.25; whereas in Ghana, it is ranked 25th with a mean value of 3.58. Climate resilience refers to the adaptation of the socio-ecological system to stresses imposed by climate change [62]. Indeed, climate change is one of the biggest global challenges in this century. As a result, the adaption and provision of measures to withstand the impact of climate change has become critical. Apparently, China is a leading advocate for the necessity of governments to invest in infrastructure and their capacity to adapt to projected climate impacts; thus, it is understandable that this SR factor is ranked higher compared to Ghana. In recent years, the Chinese government has increased its efforts by introducing policies and regulations that could help investors adopt measures to minimize the emission of harmful gases and also develop infrastructure that is resilience to adverse climate conditions [63]. Although, the government of Ghana has also shown an interest in the need to improve climate resilience and air quality by introducing a climate change framework, practical actions are yet to be seen, particularly for PPP infrastructure projects. In fact, the efforts and enthusiasm by the Chinese government to enhance climate resilience is not the same as that of the Ghanaian government. Therefore, the Ghanaian respondents do not consider this SR factor as being important in Ghana as seen in China.
The SR factors with significant differences that are ranked higher in Ghana and lower in China include "support local business", "ensure accountability, legitimacy, and transparency", "provide jobs", "protect human rights", "working altruistically for the public good", "water protection", and "forest protection". Essentially, these SR factors directly relate to job creation and environmental protection. This finding is in line with the outputs of Osei-Kyei et al. [37], where local economic development, particularly job opportunities, was found to be a significant success measure for PPP projects in Ghana. Over the last two decades, unemployment has been a major challenge to successive governments in Ghana. In fact, the average unemployment rate in Ghana is around 5.41% [64]. This figure is quite significant considering a country with a population of about 28 million. Importantly, the majority of the unemployed are young adults and due to the unavailability of jobs, many of them are engaged in social vices and fraud [65]. In this regard, with the adoption of the PPP policy, the government of Ghana and other stakeholders can expect that through the numerous activities in PPP project developments, more jobs will be created for local residents. Further, after the completion of PPP projects, it is anticipated that opportunities will be available for local residents to engage in commercial enterprises. Job creation can also be enhanced if private investors, particularly international organizations, support local businesses by subcontracting portions of the PPP activities, particularly repair and maintenance work. Also, the ensuring of accountability and transparency will also contribute to job creation. Indeed, if the PPP process is transparent and free from external influences, better negotiations in terms of the employment of locals will be made. Certainly, when more locals are employed in PPPs, more job opportunities will be available.
Water and forest protection are related to the preservation of the natural environment. During the past few years, the government of Ghana has increased efforts to protect water bodies and the forest reserve. This has become necessary because of the increase in illegal small-scale mining activities, which pollute the water bodies and destroy natural reserves. Notably, PPP project development involves activities that can also possibly deplete the country's national reserves, therefore, the government has instructed local contracting authorities to assess the environmental plan of potential PPP investors prior to negotiations or the awarding of a contract. It is hoped that this directive will help to ensure that the natural reserves and water bodies are preserved.
Unlike Ghana, unemployment is not necessarily a key national challenge in China. The average unemployment rate in China is 4.10%, which is considered as acceptable given that the country has a population of around 1.3 billion [65]. Nonetheless, the Chinese government has put in place a lot of measures to help further decrease the rate and these measures are already in effect [66]. It is therefore understandable as to why the SR factors related to job creation are ranked lower in China than Ghana.
Undoubtedly, environmental protection is also relevant in China, however, it is ranked lower by the Chinese respondents compared to their Ghanaian counterparts. This is possibly because the Chinese respondents may have considered more pressing SR initiatives, such as resource efficiency and profitability. Therefore, they do not perceive environmental protection as very critical or relevant in the Chinese PPP market. This notwithstanding, the Chinese government has in the past three years made considerable progress on the crackdown of pollution and the destruction of water bodies and natural reserves. An example is the banning of fishing in China's second largest river, the Yellow River. In this regard, water and forest protection may not necessarily be relevant now.

Similarities on the Rankings of SR Factors in PPPs in China and Ghana
Among the 30 SR factors, only one factor (i.e., "improve project quality") emerged as being very critical in both the China and Ghana rankings. "Improve project quality" is ranked second by respondents from both countries. It has mean values of 4.63 and 4.44 for China and Ghana, respectively. Undeniably, project quality has a substantial influence on the satisfaction of users [41]. If private operators improve the quality of service delivered to customers, they are able to gain their confidence and loyalty. This is certainly a business principle that applies everywhere, but not to a specific jurisdiction. However, for private operators to enhance the quality of services delivered, they need to adopt quality control measures. In addition, output specifications must be met. On the contrary, if users are unable to receive good quality services from private operators, they become agitated, which then affects the operation of the PPP project and the investment returns. Therefore, it is critical for investors to ensure that quality is enhanced irrespective of the jurisdiction they operate in.

Recommendations for PPP Practice
Social responsibility (SR) is important for the promotion of sustainable development through PPPs, however, very few research studies have focused on how SR could be enhanced in PPP procurement. Therefore, this study provides useful implications for practice and serves as a foundation for more empirical research.

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First, improvements on project quality are crucial as this influences the overall satisfaction of users and other stakeholders of the PPP project. To improve quality, proper quality control measures should be adopted. Further, timely repairs and maintenance could enhance the quality of PPP projects, particularly during operation. • Second, the efficient utilization of resources, such as land, capital, and employees, is an important SR initiative and therefore could help promote sustainability. To efficiently utilize resources, smart technologies, such as Building Information Modelling (BIM), should be used to estimate costs at the early stages. Also, modern forms of construction should be adopted to minimize wastage. • Third, profitability is essential to ensure the sustainability of PPP markets. For project parties to make substantial profits, they need to adopt smart and digitalized technology in the delivery and operation of their projects. • Fourth, job creation is critical, particularly in countries with high unemployment rates, such as Ghana. To create more job opportunities, construction and operational works should be subcontracted to local businesses. Further, more local content should be employed in PPP project development. An example is the use of local building materials during construction and operation. • Lastly, environmental protection, particularly water and forest preservation, is important for the promotion of sustainability. A detailed environmental plan should be prepared and reviewed by environmental protection agencies in the host country. In addition, adequate measures should be adopted to avoid the pollution of water bodies and the emission of harmful gases during the construction and operation of the facility.
It is believed that if project parties (both public and private) consider the above SR measures carefully, PPP projects will offer wider social benefits and value for money. In addition, the impacts of PPP activities on organizations, society, and the environment and economy will be highly positive.

Conclusions
This paper evaluated SR factors for sustainable development in PPPs through a comparative study between China and Ghana. First, a systematic review of the past literature was conducted to generate a comprehensive list of SR factors in PPPs. Further, an empirical questionnaire survey was conducted with experienced PPP practitioners in both countries. An initial statistical test using the Kendall's coefficient of concordance analysis indicated a significant level of consistency and association among the responses in each independent group (i.e., China and Ghana). This therefore affirmed the reliability and genuineness of the survey responses for further analysis. The mean score analysis coupled with the range normalization method was used to assess the relative importance of each SR factor in each jurisdiction. Results show that the Ghanaian respondents generally ranked the set of SR factors higher than their Chinese counterparts. In addition, 11 and 18 SR factors emerged as being critical in China and Ghana, respectively. This result implies that the Ghanaian respondents considered most of the SR factors as being very relevant within the Ghanaian PPP market. This is unsurprising because Ghana has implemented few PPP projects, therefore, many of the SR initiatives have not yet been realized compared to China. The Mann-Whitney U test was conducted to ascertain any significant differences on the rankings of the SR factors among the two independent groups. The test results indicate that respondents from China and Ghana perceive the importance of 12 SR factors differently. Of the 12 SR factors, five were ranked higher in China and lower in Ghana; they include "improve resource performance and efficiency", "profitability", "efficient maintenance", "appropriate resettling, rehabilitation, and compensation", and "improve climate resilience and air quality". Apparently, these SR factors directly relate to the economic efficiency of PPP projects and climate change adaptation. The other seven SR factors were ranked higher in Ghana and lower in China, and they are directly related to job creation and environmental protection. They are "support local business", "ensure accountability, legitimacy, and transparency", "provide jobs", "protect human rights", "working altruistically for the public good", "water protection", and "forest protection".
Indeed, the outputs of this study offer several practical implications for practice. First, they inform investors interested in PPPs, particularly in Asia and Africa, of the key SR initiatives that need to be taken into consideration in order to offer sufficient social benefits and to maximize the efficiency of resources. Second, they inform local government authorities of the social, economic, and environmental initiatives that need to be incorporated in the terms and conditions of PPP contracts to enhance sustainable development.
For academics, considering that very little research has been vested in the sustainability assessment of PPPs, this study serves as a foundation for more empirical study. In addition, the study opens discussion as well as extends the international debate on how sustainable development can be achieved through PPPs.
The major limitation of the study is the fact that interviews and case studies were not considered in the overall methodology. Importantly, these methods would have strengthened the validity and generalizability of the research findings. However, the authors take solace from the fact that sustainability is still emerging in PPPs, therefore, this study only serves as a "stepping stone" for further research studies that can adopt case studies or interviews. Funding: This research forms part of a research project entitled "A best practice framework for PPP implementation for infrastructure development in Ghana" from which other papers have been produced with different objective/scope but sharing the same background and methodology. The research project described is fully supported by the Hong Kong PhD Fellowship Scheme from the Research Grants Council (RGC) of the Hong Kong Special Administrative Region and The Hong Kong Polytechnic University, Hong Kong.