Legal analysis: The cooperation mode of government and social capital is suitable for infrastructure and public service projects with large investment scale, long-term stable demand, flexible price adjustment mechanism and high degree of marketization. Relevant departments at all levels should give priority to projects with transparent pricing mechanism and stable cash flow.

Legal basis: Guiding Opinions of the National Development and Reform Commission on Cooperation between Government and Social Capital Article 1 The cooperation between government and social capital (PPP) refers to the long-term cooperative relationship established by the government and social capital through franchising, purchasing services and equity cooperation in order to enhance the supply capacity of public goods and services and improve the supply efficiency. The cooperation between the government and social capital is conducive to innovating the investment and financing mechanism, broadening the investment channels of social capital and enhancing the endogenous power of economic growth; It is conducive to promoting the mutual integration and complementary advantages of various types of capital, promoting the diversification of investment subjects and developing a mixed ownership economy; It is beneficial to straighten out the relationship between the government and the market, accelerate the transformation of government functions, and give full play to the decisive role of the market in allocating resources.