Research On Income Distribution Of PPP Projects In Urban Old Neighborhood Renovation

At present,the renewal mode of urban districts has shifted from demolition and rebuilding to stock renovation.Due to the extensive work involved in the renovation of old neighbourhoods and the large financial burden on the government,the State Council issued a relevant guideline in 2020,proposing to "introduce social capital to participate in the renovation of old neighbourhoods and support the exploration of PPP models".However,the large investment and long payback period of PPP projects for the renovation of old districts have led to uncertainties in the distribution of benefits among various parties in the implementation process,which has brought negative impacts on the implementation of the projects.In this context,this paper analyses the characteristics of old neighbourhood renovation PPP projects,identifies the factors affecting the benefit distribution of the projects through triple identification,and combines grey correlation analysis(GRA)and ideal solution method(TOPSIS)to construct a benefit distribution model with modified Shapley values.The paper firstly discusses the feasibility and necessity of using the PPP model for old district renovation projects,and determines the benefit allocation model based on the Shapley value theory by comparing the commonly used benefit allocation methods;secondly,further analyses around the benefit allocation research: firstly,it identifies the government and enterprise parties as the benefit allocation subjects in this paper;secondly,it uses Citespace,ROST The second is to use Citespace,ROST and Content Mining software to read the literature,sort out the policies and analyze the cases,and add the six factors of risk sharing,investment weight,satisfaction,business ability,cooperation contribution and effort to modify the traditional Shapley value model;then use Nash negotiation theory,fuzzy comprehensive evaluation,hierarchical analysis,C-OWA operator and other methods to calculate Finally,an empirical analysis was carried out on the PPP project for the renovation of the old district in Area A of Nanning City,Guangxi,and the optimisation model established was used to adjust the allocation coefficients between the government and the enterprise.The results showed that the revised benefit allocation values were in line with the actual situation and more reasonably reflected the relationship between the inputs and benefits of both parties.The paper is innovative in the following two aspects: firstly,in terms of the identification of the influencing factors for the revised Shapley value,the paper takes the characteristics of the old district renovation PPP project into consideration and adds policy and case studies on the basis of literature research,and the triple identification makes the introduced factors more comprehensive;secondly,in terms of the method for calculating the allocation coefficients of both parties,the paper proposes to combine the Euclidean distance and grey correlation to calculate the comprehensive coefficients of each influencing factor,and establish a benefit allocation model based on the grey correlation ideal solution method(GRA-TOPSIS)with modified Shapley values,which more reasonably and scientifically quantifies the influence of each influencing factor on the benefit allocation of the old district renovation PPP project.The empirical analysis verifies the feasibility and validity of the GRA-TOPSIS modified Shapley value benefit distribution model constructed in this paper,which has certain reference significance for enriching relevant theoretical research and promoting the development of urban district renovation PPP projects.Figure[9] table[28] reference[102]...