Study On The Evolutionary Game Of Green Supply Chain Under Carbon Trading Mechanism

China’s unified carbon trading market was officially launched on 16 July 2021,and achieving the goal of carbon peaking and carbon neutrality is a broad and profound economic and social systemic change.The development and improvement of lowcarbon production technologies and the reduction of carbon emissions from production by industrial industries,which are the foundation of our economy,are effective means to achieve carbon reduction targets.Carbon trading policies have achieved the effect of constraining corporate carbon emissions,while driving manufacturing companies to improve traditional production technologies.Currently,the behavioural game between member firms of green supply chains under different contexts and regimes has attracted the attention of scholars at home and abroad.This paper focuses on the strategy game between manufacturers and retailers in the green supply chain in order to achieve carbon emission reduction and corporate revenue goals.Firstly,an evolutionary game model of the green supply chain under the carbon trading mechanism is constructed,the strategy combinations of the participating game players are analysed for evolutionary stability,the stability conditions of the evolutionary stable strategy are determined,and numerical simulations are carried out using Matlab software to determine the positive correlation between the coefficient of consumers’ low carbon preference and the overall revenue.The change in wholesale price and penalty default mechanism have a greater impact on the overall revenue and strategic behaviour of the game players.By introducing the theory of revenue sharing contract coordination,the decision making of the green supply chain under the carbon trading mechanism is coordinated,and a centralized decision making model and a decentralized coordination decision making model are constructed respectively.The comparative analysis concludes that the revenue sharing coordination contract can achieve the goal of carbon emission reduction while ensuring the revenue of the green supply chain as a whole,and the numerical simulation is conducted by Matlab software.The results of the simulation were used to further analyse the countermeasures and recommendations.This paper proposes the influence mechanism of relevant parameters on green supply chain revenue based on carbon trading policy,which helps manufacturing enterprises at the early stage of product low-carbon improvement to improve their corporate strategic decisions and helps green supply chains achieve carbon emission reduction targets while achieving evolutionary stability of corporate revenue;the revenue sharing contract coordination strategy can improve the overall revenue level while green supply chains consider carbon emission reduction in product production and achieve a balance between economic benefits and social responsibility of enterprises.Combining model analysis and simulation analysis,this paper provides corresponding countermeasures and suggestions for China’s green supply chain to adapt to the changing market demand and the gradual implementation of policies and regulations.In the initial stage of cooperation,the member enterprises of the green supply chain need to build a perfect reward and punishment mechanism and a scientific credit rating system,and further optimise the low-carbon production technology of the green supply chain through measures and means such as the establishment of a coordination contract mechanism to meet the dual demands of expected returns and low carbon emissions,fulfil corporate social responsibility and optimise the allocation of industrial resources.