Dynamic Optimization Research Of Long-term Cooperation Emission Reduction In Supply Chain Under Government Differentiated Subsidies

It has become the consensus of all countries in the world to reduce carbon dioxide emissions,curb the spread of greenhouse effect and deal with the deterioration of human living environment.With the proposal of China’s dual carbon goals of "carbon peak" and "carbon neutralization",in the process of social development,how to guide supply chain enterprises to change the traditional development mode and take the road of green and sustainable development,how to effectively coordinate the production process of supply chain enterprises,reduce the adverse impact of carbon emissions on the environment,and how to effectively organize supply chain enterprises to carry out long-term cooperative emission reduction activities,It has become an important issue in the development of supply chain enterprises.Therefore,this paper discusses the long-term cooperative emission reduction of supply chain under the coordination and control of government participation,and analyzes the impact of different cooperative emission reduction modes and the choice of behavior strategies of various participants on the long-term cooperative emission reduction of supply chain enterprises under the implementation of differentiated subsidy measures by the government,so as to encourage supply chain enterprises to give full play to their own advantages,actively participate in long-term cooperative emission reduction,and achieve the grand goal of green,low-carbon and sustainable development,It is of great significance.Based on the combing and summary of the literature related to supply chain cooperative emission reduction,combined with the actual situation of enterprises’ production and operation at the present stage,this paper adopts the differential game theory,and takes into account the impact of government differentiated subsidies on long-term cooperative emission reduction of supply chain enterprises and the dual impact of product emission reduction on demand,constructs the differential game model under three modes: decentralized decision-making,centralized decision-making and cost sharing contract,Study the dynamic optimization of long-term cooperative emission reduction in the supply chain under the government differentiated subsidy,explore the impact of the behavior strategies of various participants under different modes on the long-term cooperative emission reduction of supply chain enterprises,and analyze how the government differentiated subsidy measures guide the supply chain enterprises to actively participate in cooperative emission reduction,and how the cost sharing contract coordination mechanism under the government differentiated subsidy measures can realize the perfect coordination and optimization of cooperative emission reduction of supply chain enterprises,And how to coordinate the implementation of the two measures can better realize the long-term cooperation and emission reduction of supply chain enterprises.The study found that under the situation of differential subsidy implemented by the government,through the coordination of cost sharing contract,while reducing the pressure of low-carbon emission reduction of suppliers and retailers,it can transfer the manufacturer’s awareness of carbon emission reduction to the two member enterprises,change their behavior and strategy choice,and make the two enterprises willing to invest more costs and actively participate in cooperative emission reduction.The coordinated implementation of government differentiated subsidies and cost sharing contract can realize the perfect optimization and coordination of long-term cooperative emission reduction of supply chain enterprises,make the overall income and product emission reduction of supply chain under the cost sharing contract mode reach the level under centralized decision-making,and realize the Pareto improvement of the optimal value of each enterprise.The government’s subsidy intensity under different modes needs to maintain reasonable differences in order to make the government’s differentiated subsidies play the best role.It is also the key to ensure that the cost sharing contract can efficiently realize the coordination and optimization of the supply chain and promote member enterprises to maintain long-term cooperation and emission reduction.There are some differences in marginal profits between suppliers and retailers,which is a necessary condition to ensure that supply chain enterprises achieve the best cooperative emission reduction state.In order to achieve the double carbon goal as soon as possible,under the macro-control of the government,we should use the contract coordination mechanism to strengthen enterprise cooperation and exchange,promote enterprises to give full play to their own advantages,promote industrial reform and take a new path of green and low-carbon development.