Research On Risk Management Of City Infrastructure Construction Based On PPP

PPP financing mode is to adapt to a new financing mode of the development of the times. It can alleviate the pressure on government finances and improve project operation and service efficiency, making the market more powerful engine, and promote faster development of economy. How the city government departments to guide the private capital or foreign investment into the city infrastructure construction, it will be necessary to resolve problems in the future development of city infrastructure. Discussion on PPP financing mode can provide more financing for the government, to promote faster development of city infrastructure construction.Based on the previous research, using both qualitative and quantitative methods to study PPP model. Firstly,the thesis introduced the related concept of PPP model, mode of operation, the PPP project risk assessment model, risk identification and evaluation of the sewage treatment plant project based on PPP model by using analytic hierarchy process, and the establishment of perfect information game model of indefinite risk sharing, so as to determine the ratio of risk sharing,to explain the feasibility and practicability of PPP mode in our country combined with construction example.Analysis results show that, the most important risk of the sewage treatment plant based on PPP project in East city of A is the completion risk, followed by the financial risk, operational risk and natural risk almost, in the two level indicators, the most important risk of the financial risk is the interest rate risk, the most important risk of completion risk in the project is that the project can’t be finished, the most important risk of operation risk is that water charges are arrears, and the most important for the natural risk is the geological risk. Risk ratio and risk rate of return is negative correlation, namely the risk return rate is smaller, willing to take the risk of greater proportion. To effectively control risks will promote the PPP mode in the role of government investment and financing.