PPP Mode of Installing Elevators in Old Residential Areas with Government Subsidy
With the increasing of aging and the gradual improvement of residents'requirements for quality of life,the installation of elevators,as one of the important links in the renovation of old residential areas,has also received attention.However,the current owner-financed financing model has caused obstacles to the implementation of elevator projects,and a large number of financial subsidies have also caused pressure on government finances.In view of these problems,this paper proposes a market mechanism,that is,to form a PPP financing model in which social capital parties participate.In order to study whether the form and scale of government subsidies in this model will increase the willingness of social capital and residents to participate and lead to subsidy traps,this paper constructs an evolutionary game model with two stages of construction and operation of elevators.Then,in order to explore the impact of parameter changes on the strategies of social capital and residents,sensitivity tests were carried out on the model.The results show that the PPP financing model constructed in this paper can improve the participation willingness of social capital and residents,and the construction period subsidy can significantly promote the strategic choice of social capital,while the operation period subsidy can promote the strategic choice of residents.The existence of reputational incentive subsidies will lead to subsidy traps.If the social capital and the residents are subsidized at the same time,the project will be successfully run only when the proportion of the operation period subsidy given to the residents is large to a certain extent.
install elevatorsincentives and subsidiesPPP financing modeevolutionary game
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