Study On The Game Of Participants In Government Investment Projects Considering Economic And Social Benefits

Government investment is a process in which the government converts the invested funds into project assets to meet the public needs of society.As China enters a new stage of development,the importance of government investment projects has gradually become prominent.The government regards them as an important way to realize government functions,meet social needs,regulate the national macro-economy,optimize resource allocation and social investment ratio.With the increase of project construction,how to ensure the completion of projects with high quality and high efficiency is the focus of the government and society.Therefore,in order to clarify the rights and responsibilities and interest relations between participants,this paper constructs a game model of participants in government investment projects from the perspective of economic and social benefits,analyzes the important factors affecting participants’ strategy selection,and formulates targeted improvement strategies to achieve the purpose of improving the comprehensive benefits of the project.Firstly,this paper summarizes the importance of this research work and determines the main research content and technical path by analyzing the research status of government investment projects and game theory at home and abroad.Secondly,this paper deeply discusses the relevant concepts and characteristics of government investment projects,in order to clarify the concrete embodiment of comprehensive benefits of government investment projects,so as to lead to the perspective of economic and social benefits in this paper.At the same time,the basic concepts and elements of game theory are sorted out.By analyzing the limitations of different game methods,the conclusion that evolutionary game method is more suitable for this study is drawn.On this basis,the stakeholder theory is then used to identify the main and secondary influencers of government investment projects,and the main influencers of projects from the perspective of economic benefits are identified as investors and builders,and the responsibilities and objectives of both sides are sorted out.By constructing a two-party evolutionary game model,the evolutionary stability state and stability conditions of twoparty strategies are analyzed,and the set of evolutionary stability strategy is obtained.The ultimate goal of government investment projects is to create social welfare,and economic benefit is an important prerequisite for the improvement of social benefit.On the basis of clarifying the behavioral strategies of builders that have a decisive effect on the improvement of project benefits,this paper constructs a tripartite evolutionary game model by introducing the role of the public from the perspective of social benefits,and analyzes the evolutionary path of portfolio strategy and the preconditions for reaching the point of evolutionary stability strategy.At the same time,in order to verify the validity of the two models,this paper uses MATLAB software to simulate the models,and analyzes the parameters that have important influence on participants from different perspectives.Finally,taking improving the comprehensive benefits as the foothold,this paper puts forward management measures for investors,builders and the public from the perspective of the government based on the analysis results of game models.In order to scientifically evaluate the economic and social benefits of government investment projects,corresponding evaluation criteria systems are also constructed,hoping to provide reference for the government to carry out project supervision and audit.There are two main innovations in this research.In this paper,evolutionary game method and MATLAB simulation software are applied to the game model of participants in government investment projects under the premise of limited rationality and incomplete information.Firstly,from the perspective of economic benefit,the main stakeholders of the project are identified as investors and builders,and economic benefit parameter is introduced into the model construction.Then,from the perspective of social benefit,this paper pays attention to the rights of the public as "investors" and"beneficiaries" and the social responsibilities of "supervisors",and introduces social benefit as model parameter to construct a three-way evolutionary game model of investors,builders and the public.