中文摘要：

在政府主导的公私合作制（PPP）项目建设运营中,考虑将PPP项目中私人部门生者剩余的部分比例纳入社会总福利水平的计算,分别从高需求、中等需求和低需求3种不同的市场需求状态出发研究公共品供给市场上的定价机制,通过分析由于政府价格规制区间而导致的公私部门之间定价权配置的差异,公私不同主体追求不同的效益最大化,得到不同市场需求状态下的公共品定价水平及其不同状态下的相关参数的影响,验证了政府对公共品供给的规制价格区间与PPP项目运营成本的相关性,并发现不同需求状态下公共品定价与产品需求弹性之间关系的差异;对我国公共项目建设和运营实践中公共品供给市场上的定价具有一定的指导意义.

英文摘要：

This paper analyzed the pricing mechanism in the supply of public goods,based on defining the calculation of social welfare which considered part of producer surplus in the operation of PPP project under the guidance of government,and classifying the public goods market into three states i.e.,the high,middle and low demand needs.By analyzing the different allocations of pricing right between public and private sectors,and then maximizing the different benefits individually by public and private sectors,it derives the pricing mechanism and the different impacts of related parameters on it under three different demand states,examined the relationship between the interval of price regulation by government and the cost in the operation of public-private partnership projects,and also find the different correlations between the pricing and the demand elastics of public goods in different market demand levels,so as to bring forward some suggestions for pricing of public goods in the practice of PPP projects.