Research On Risk Assessment System Of Public-Private- Partnership Project

In china,the project of Public-Private Partnership(PPP project)is vigorously promoted under the guidance of the government.Since the introduction of PPP mode,China has gained successful experience and failed lessons.Therefore,it is necessary to study the knowledge of the PPP model and improve the theoretical system of the PPP model.In china,the PPP model is defined as the long-term equal cooperation between the social capital and the government.The PPP project is based on the PPP mode.The main participants of the PPP project are government departments,social capital parties,banks or financing institutions,construction enterprises,consumers and so on.The life cycle of the project is about 20-30 years.PPP pattern projects have obvious advantages over traditional patterns.Firstly,the pressure of government funds can be relieved.Secondly,it can provide more quality public facilities and services for people.Thirdly,it increases the investment channel of social capital.Lastly,it can promote economic development.Meanwhile,the PPP project has two main disadvantages.First of all,the investment recovery period is long,and the unexpected risks are more and then the lack of government supervision is easy to cause the loss of the people.Through sorting out literature,30 key risk factors that affect PPP project are sorted out.They are divided into 6 categories according to risk sources:construction risk,operation risk,income risk,political and legal risk,financing risk and force majeure risk.There are many ways of risk assessment.Through analysis and comparison,combining the method of tomographic analysis and fuzzy comprehensive evaluation can build the risk model with the advantages of the two methods,which is more theoretical and practical than other methods.At the same time,the risk assessment model has been built for the application of the Qian'an sponge city PPP project,and the analysis of the structure is basically in line with the actual situation.Through the study of the connotation of PPP model,risk factors and risk assessment system,the PPP project theory system in China has been perfected.