| At present,it is the decisive stage for China to build a moderately prosperous society in all respects.It is essential to promote sustained and healthy economic development and maintain lasting social stability.The PPP model plays an active role in improving the state governance structure,improving the supply of public services,improving the efficiency of government investment and expanding social capital space.Since 2014,the PPP model has flourished in China.However,the PPP project landing problem has affected the healthy and stable development of the PPP model.Exploring the spatial-temporal evolution characteristics and driving factors of PPP landing projects can help to reduce the planned risks for PPP projects and provide constructive suggestions for the government to supervise the implementation of PPP projects.Based on the analysis of the existing literature and the relevant theoretical framework of the spatial-temporal evolution of PPP landing projects,the existing PPP project database of the Ministry of Finance and the Development and Reform Commission,this paper constructs panel data of regional PPP projects of various provinces and municipalities during 2015 to 2018.The evolution characteristics of PPP landing project in time and space are analyzed.The existence of spatial-temporal differentiation is verified by spatial regression model.The spatial-temporal characteristics and driving mechanism of landed PPP project are explored.The findings are as follows:(1)In the view of time line,the number of PPP landing projects has been steadily increasing,and the landing rate has been continuously improved,but the upsurge of PPP projects has slightly decreased.From the perspective of space,the number of projects,the amount of investment,and the landing rate are consistent in the eastern,western,and central regions.Some influencing factors,including regional development demand,economic environment,policy environment and business environment,exert different impacts on the landing rates of PPP projects in the eastern,central and western regions.The PPP projects in eastern region are greatly affected by policy environmental and the development demand factors.In western region are beset by the economic environment and business environment factors.(2)The growth rate of fixed asset investment,and infrastructure status can directly promote the increase of PPP project landing rate,while the financial absorption capacity,policy environment and social development level promote the PPP project landing rate through the feedback effect of spatial spillover effect.The other driving factors can inhibit the PPP project landing.In general,factors such as the development demand,economic environment,and policy environment can promote the landing of PPP projects,and the limit the efficiency of PPP projects landing.The direction of the business environment factors affecting the landing of PPP projects is not clear.Local authorities should improve the policy and regulation system,and create a good economic and business environment to promote the landing of the PPP projects.Local governments also should strengthen the management of the landed projects and ensure the positive role of PPP model in livelihood projects. |
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