Mobilizing institutional investment into infrastructure Public-Private Partnerships (PPPs) is critical for delivering sustainable development in emerging markets. Yet most PPPs remain too fragmented, unique, and risky to meet the scale and investment requirements of long-term investors such as pension funds and insurers.
This policy brief draws on insights from the April 2025 WAPPP webinar on portfolio-level blended finance PPPs, featuring contributions from government leaders, blended finance experts, and infrastructure fund managers. Unlike previous briefs focused on project structuring, this paper specifically examines the perspectives, constraints, and solutions relevant to institutional investors. Speakers emphasized the need to shift from isolated transactions to investment-grade, pooled PPP portfolios built through standardized, layered capital structures.
The brief presents Convergence’s Private Investment Mobilization Models (PIMMs) for fund design, shares lessons from Ecuador’s evolving national PPP framework, and captures key challenges and recommendations from institutional investors currently active, or cautious, in emerging market infrastructure.