Public-private-partnership (PPP) is a collaboration form between one or more public and private sectors, of a long-term nature typically. This paper is based on the case Shijiazhuang International Exhibition Center to explore multivariate analysis of PPP project risk. Based on the risk allocation mechanism of this project, a system of risk factors is summarized, divided into three sub-systems, including: cooperation effectiveness sub-system, cooperation environment sub-system, and construction and operation sub-system. Through establishing the system dynamics mode, it can be concluded government efficiency and contract documents conflict are key elements. What's more, the system has two positive feedback closed loops. This paper compares the results of the other three methods, and discusses the difference between them to correct conclusion. In conclusion, contract documents conflict and project company efficiency should be controlled strictly in this project.
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