| With the development of the times,the digital transformation and diversification of agriculture have brought significant impacts on agricultural production and management activities.Although there are a large number of studies on agricultural digital technologies,application methods and development prospects,there is a lack of in-depth research on the main actors involved in agricultural digital development.By reviewing relevant literature,it is found that there are few studies on the forms adopted by farmer professional cooperatives(hereinafter referred to as cooperatives),farmers and agricultural enterprises in agricultural digital development.Therefore,this thesis takes cooperatives,farmers and enterprises as the main subjects to explore the cooperation modes among various participants in the process of digital development.To this end,this thesis takes cooperatives,farmers and enterprises as research objects,and on the basis of reviewing previous research achievements on agricultural digitalization development,defines and analyzes the role positioning and interest demands of various subjects in the process of agricultural digitalization,clarifies the relationship between the main participating subjects,and establishes an evolutionary game model.By analyzing and solving the model,this thesis studies how cooperatives,farmers and enterprises make evolutionary decisions and achieve stable strategies.The MATLAB software is used to numerically simulate the initial state of the evolutionary game system,and some parameters are selected to simulate and verify the impact of parameter changes on the decision-making evolution process and evolution trend of participating subjects.Based on the above model,this thesis considers the government support factors,including cost subsidy and technical support,and incorporates them into the three-party evolutionary game model.It analyzes how government cost subsidy and technical support affect the evolutionary stable strategies of participating subjects in the process of agricultural digitalization,and finds that when government support reaches a certain level,it can promote the model to evolve towards the optimal stable strategy combination.The MATLAB software is used to numerically simulate the initial state of the three-party evolutionary game system to verify the conclusion,and different government support parameters are selected to simulate and verify the impact of parameter changes on the decision-making evolution process and evolution trend of participating subjects.The conclusion shows that the greater the government support intensity,the better the incentive effect for farmers and enterprises,and the faster farmers and cooperatives achieve cooperative strategies.Finally,this thesis summarizes the evolutionary game model of agricultural digitalization development and its theoretical analysis and numerical simulation results.Based on the model results,this paper aims to promote the process of agricultural digitalization development,and puts forward corresponding suggestions from four perspectives: government,cooperative,farmer and enterprise.And it looks forward to the future research direction.The main innovations of this thesis include:(1)This thesis starts from the perspective of cooperatives,farmers and enterprises as three subjects participating in the process of agricultural digitalization,studies the factors affecting their cooperative strategies,and analyzes the role of government support on their cooperative strategies,which is an innovation of this thesis in terms of perspective;(2)This thesis uses an evolutionary game model to analyze the cooperation trend of game subjects in the "cooperative + farmer + enterprise" agricultural digitalization development mode under two scenarios: without government support and with government support,which is an innovation of this thesis in terms of model.(3)Considering that the number of relevant subjects is relatively small in the actual situation,and the relevant data lack reliable sources,numerical simulation method is used to conduct analysis and research,in order to be closer to the reality. |