Research On The Risk And Income Distribution Of Urban Infrastructure Construction Projects Under The PPP Model

In recent years,China's economic develops rapidly,so the demands for urban infrastructure construction and funds are also growing.Due to the lack of efficiency of the traditional construction financing modes and the limitation of funds,this situation seriously affected and restricted the economic and social development of our country.In this case,the government needs to open up new financing channels.A new financing model of infrastructure construction,Public-Private-Partnership(PPP),has been gradually applied to the construction of urban infrastructure in China.On the basis of summarizing literature,I analyse the basic characteristics of PPP financing mode and compare with the traditional financing model,PPP model has more private capital to play a reasonable risk sharing,etc.,to form a mutually beneficial and win-win cooperation partnership between the parties involved in the project.Then,after analyzing the current situation of investment and financing of infrastructure construction in China,and combining with the situation of our country,the necessity and feasibility of introducing PPP mode into the construction of infrastructure projects in China are discussed.There are a lot of risks in the construction of the city infrastructure,firstly,we summarize the types and characteristics of risk and then introduce the Dematel method,all the risks are divided into several different levels,the higher the level is,the greater the risk is,who undertake this risk must assume liabilities.According to the basic principle of income distribution,who takes the higher risk,who should receive more benefits.Using the game theory model(between the government and the private sector),obtain the Nash equilibrium solution,this solution is that we want to derive the optimal profit allocation results,the optimal solution is to make the overall benefits best and to make the profit distribution model between the government and the private sector is fair and reasonable.