Research On Performance-Oriented Pricing For Sponge City PPP Project

The construction of the Sponge City PPP(Public-Private-Partnership)project can alleviate the current shortage of water resources and the deterioration of the water environment,and it can also meet the urgent need for ever-growing urban storm-water management due to the acceleration of urbanization.In order to make Sponge City PPP project sustainable operation,reasonable pricing and flexible price adjustment are extremely crucial,it is beneficial to clarify the interests of both governments and enterprises,and to make reasonable regulations and incentives to provide better services for the public.The thesis first analyzes the literature,sorts out the related theories of the sponge city PPP project,pricing and price adjustment,performance management,and provides a theoretical basis for the construction of the model.Secondly,the pricing model under three payment mechanisms(government payment,user charges,and viability gap funding)has been established.Based on the basic model,the project's performance is also included in the model.Again,according to the changes in the internal and external environment of the Sponge City PPP project,the trigger conditions for price adjustment are identified and reasonable price adjustment strategy is formulated.Finally,three cases under different payment mechanisms are selected and the data is used for verification.The results show that under the government payment mechanism,the optimal price is a function of the government's attention to the price and service volume and the cost coefficient.When the government's attention to price increases,the price can be adjusted downward,and while for the service supply,the price may be adjusted to a higher level as the degree increases.When the cost coefficient increases continuously,the price may be adjusted to be higher.When the performance of the project is continuously improved,the price may be adjusted downward.Under the mechanism of user payment and viability gap funding,the optimal price is a function of demand and cost coefficient.When the demand coefficient increases,the price can be properly adjusted up or down and when the cost coefficient increases,it can be adjusted to high prices.When the performance of the project continues to increase,it can be adjusted to higher prices,and when government subsidies increase,prices can be adjusted downwards.The model can be effectively used in the actual pricing process of the sponge city PPP project,and the pricing strategy formulated is also reasonable.Therefore,this study can provide suggestions for the practice of sponge city construction and enrich the research in this field.