Global Diffusion of P3 Policy: Learning Perspectives for Social Infrastructure

No matter how widely they may be defined, new social infrastructure projects can learn much from previous public–private partnership (P3) policies as well as from current global experience. What can be learned, though, and how? This article adopts a theoretical policy learning perspective and investigates what public works researchers and policymakers might get out of focusing on policy learning in more detail. Three perspectives are presented as follows: the technical approach, the professional/coalitional approach, and the experimental approach. International case illustrations are presented to illustrate P3 policy learning over space and time.