Evolutionary game analysis on supervision of PPP project tender

In the background of urbanization process, the Chinese government vigorously implemented the PPP (Public-Private Partnership) mode as an important means to relieve the financial pressure. Under the assumption of rational "economic man", in order to analyze the strategic choices on the interaction between the government and the agents in PPP projects, an evolutionary game model was constructed to discuss the respective evolutionary stable strategies, and to obtain the dynamic replication phase diagram. According to the analysis of the game behavior choices between them, the corresponding suggestions such as increasing the punishment intensity of rent-seeking, taking effective means of supervision and reducing supervision cost were put forward. It provides scientific basis for the supervision of the PPP project tender.