International Investment in Sustainable Infrastructure: the Role of Public-Private Partnerships

The report analyses how public-private partnerships can bridge the persistent financing gap in sustainable infrastructure investment, especially in developing countries.It highlights the growing role of development finance institutions and multilateral development banks, and blended finance instruments, in mobilizing private capital.The study shows that while renewable energy dominates international public-private partnerships (PPP) activity, many poor countries remain underserved.It also examines challenges such as high capital costs, planning setbacks, and rising legal disputes.The report concludes with policy recommendations to strengthen legal frameworks, improve risk-sharing, and enhance project bankability to advance progress on the Sustainable Development Goals.