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.

中文翻译：

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P3 政策的全球传播：社会基础设施的学习视角

无论定义的范围有多大，新的社会基础设施项目都可以从以前的公私伙伴关系 (P3) 政策以及当前的全球经验中学到很多东西。但是，可以学到什么，以及如何学习？本文采用理论政策学习的视角，并更详细地调查公共工程研究人员和政策制定者可能会从专注于政策学习中得到什么。三个观点如下：技术方法、专业/联盟方法和实验方法。提供了国际案例插图来说明 P3 政策在空间和时间上的学习。