In search of the collaborative advantage of public‐private partnerships: A comparative analysis of Dutch transport infrastructure projects
比较荷兰交通基础设施项目中PPP与传统采购项目的成本、时间和感知绩效，发现PPP成本表现更好，但优势并非来自协作，未找到协作优势理论的证据。
Abstract The theory of collaborative advantage is a major theory rationalizing the role of Public‐Private Partnerships (PPPs). However, the evidence for the theory in the case of PPPs is weak: the literature lacks studies that compared the actual performance and collaboration of PPPs to that of traditionally procured public projects. The aim of this article is to test the theory of a collaborative advantage of PPPs, focusing on three common performance indicators: time, cost, and perceived project performance. Data were collected on Dutch transport infrastructure projects. PPPs were compared to traditionally procured projects with non‐parametric tests and robust regression using weighted least squares estimator. It was found that PPPs have better cost performance but that this performance advantage cannot be attributed to collaboration. Therefore, it is concluded that no evidence was found for the theory of a collaborative advantage of PPPs.