亚开行-亚洲基础设施公私合作的决定因素：对资本市场发展的影响（英文）-2018.8-29页

Summary of "Determinants of Public-Private Partnerships in Infrastructure in Asia: Implications for Capital Market Development"

Core Content

This paper explores the determinants of public-private partnership (PPP) investments in infrastructure in Asia, with a focus on the role of capital market development in facilitating private sector participation. The study uses data from the World Bank Private Participation in Infrastructure (WB PPI) database and applies various econometric models to analyze the relationship between financial market development and PPP investment in 12 low- and middle-income countries (LMICs) from 1995 to 2015.

Main Viewpoints

• PPP as a Financial Mechanism: PPPs are seen as a way to alleviate the fiscal burden on governments and improve the efficiency of infrastructure development by involving the private sector.
• Role of Financial Markets: Financial markets, particularly capital markets, play a crucial role in infrastructure financing due to their ability to provide long-term funding.
• Government Bond Market Impact: Despite the importance of financial markets, the study finds that government bond development has a negative impact on PPP investment, possibly due to its crowding out effect on private capital.
• Private Sector Financing Challenges: Developing countries still heavily rely on fiscal financing rather than private investment. The underdevelopment of corporate bond markets in these countries is a key barrier to private participation.
• Macroeconomic Stability and Institutional Quality: Macroeconomic stability (especially low inflation) and institutional quality (less corruption, effective rule of law) are important positive drivers of PPP investment.
• PPP Investment Drivers: Key positive determinants include public investment, economic growth, GDP size, financial sector development, and the presence of a stable political environment.

Key Information

Financial Market Development

• Banking Sector: Remains the primary source of financing for infrastructure projects in developing countries.
• Domestic Bond Market: Needs to be developed for long-term funding of private sector participation, but the study finds a negative correlation between government bond development and PPP investment.
• Stock Market: Has a positive correlation with PPP investment, suggesting that deeper and more liquid stock markets may support private sector participation.
• Corporate Bonds: Less developed in many developing countries, limiting their role in infrastructure financing.

Macroeconomic and Institutional Factors

• GDP Growth: Positively associated with PPP investment.
• Inflation Rate: Negatively associated with PPP investment.
• Exchange Rate Volatility: Affects PPP investment negatively.
• Government Stability Index: Positively related to PPP investment.
• Fiscal Conditions: Governments with higher fiscal freedom and better credit conditions are more likely to engage in PPPs.

Empirical Findings

• The study uses panel regression, difference GMM, dynamic panel fixed effect, and system GMM to analyze the determinants of PPP investment.
• Government bond-to-GDP ratio is found to have a negative impact on PPP investment, indicating that reliance on government bonds may discourage private sector involvement.
• Corporate bond markets and stock markets are less developed in many Asian countries, limiting their ability to support large-scale infrastructure projects.
• Macroeconomic stability and institutional quality are positive drivers of PPP investment, reinforcing the need for stable and transparent governance.

Policy Implications

• Developing countries should develop corporate bond markets to provide long-term financing and reduce reliance on government bonds.
• Financial market depth and liquidity are essential for attracting private investment in infrastructure.
• Regulatory reforms and improved governance are necessary to enhance the attractiveness of PPPs to private investors.

Conclusion

The paper concludes that while financial market development is important for PPP investment, the dominance of government bonds in developing countries may crowd out private sector participation. Therefore, enhancing the corporate bond market and ensuring macroeconomic and institutional stability are critical for sustainable infrastructure development and private capital mobilization in Asia.

Tables Overview

References

The study draws on a wide range of academic literature, including works by Asante (2000), Zerfu (2001), Ouattara (2004), Hammami et al. (2006), Kinda (2008), Ba et al. (2010), Tewodaj (2013), and Kasri and Wibowo (2015), to support its analysis of PPP determinants in infrastructure financing.