Considering Government Revenue Constraints In PPP Mode Subway Pricing Research

The PPP model(public-private-partnership)has been widely used in China's infrastructure,especially in the field of subway infrastructure construction,mainly because it is alleviating the government's financial pressure and making up for the subway infrastructure gap.It plays a huge role in meeting the needs of public transportation.In the subway project under the PPP mode,the social capital party needs reasonable subway pricing to ensure the income to alleviate the financial pressure.The government needs to make full use of the subway to improve the urban traffic in order to ensure that the subway pricing is in line with the public fare bearing capacity.The form of income constraint regulates the pricing of subways,which makes the pricing of subways under the PPP model require the government to play a role of income constraints to ensure the rationality of pricing.Therefore,from the perspective of the economic and social aspects of metro pricing in the PPP mode,it is of great significance to study the pricing of subways considering the government revenue constraints under the PPP model.Firstly,this paper studies the income composition,allocation method and subway pricing method of subway project under PPP mode and provides theoretical basis for subway pricing research under government revenue constraints.Secondly,according to literature review,project specific characteristics and government revenue constraint policy,in the PPP mode,the relevant factors of subway pricing are summarized and analyzed.The relationship between each influencing factor and the evolutionary game method are used to establish the evolutionary game model and solve it.The game pricing strategy under different combinations of relevant factors is obtained.Finally,under the combined effect of government revenue constraints,the key nodes and evolution paths of single factors in the related factors are analyzed.Research shows:First,under the constraint of government revenue,due to different combinationsof pricing-related factors,the strategies adopted by social capitalists and governments are divided into 16 situations without stability strategy,single stability strategy and two stabilization strategies.Affect the final trend of stable strategy development.Second,under certain preconditions,the changes in the single indicator factors in direct fare income,indirect advertising revenue,joint income and government income restraint policies are affected by the combination of related factors,which has an impact on the final subway pricing.Third,influenced by the government's income-constrained policy,there is no inevitable relationship between the increase in pricing and the overall project revenue.The social capital party can not increase the overall income of fare revenue loss by a single high fare when pricing the subway,and the pricing should be consistent with the public fare bearing capacity.At the same time,the social capital side should do a good job of internal optimization and external coordination development,give play to the improvement effect of the subway on urban transportation,and enhance the overall income of the project.