Study On Cross Regional Green Supply Chains Coordination With Carbon Emissions Trading And Multiple Governments' Intervention

Carbon emissions trading is an important means of controlling greenhouse gas emissions around the world.At present,most of our local governments make the carbon emission control strategies on the basis of local economy and social development,which results in the significant differences between the regional controls and affects the operation efficiency of cross regional green supply chain.Especially in chain-to-chain competition,the government's rewards or punishments and the reductions or benefits of carbon emissions trading as well as the green preferences of consumers will affect the supply chain and the final profits of its business.However,in the research on the current chain-to-chain of supply chain coordination,these factors are rarely considered in the construction of model.Therefore,in view of the reality that cross-regional green supply chain is governed now,this paper establishes a bi-level programming model with government revenue as upper layer and chain-to-chain game coordination model as the lower layer,and explores the chain-to-chain coordination problem of the cross-regional green supply chain under different local governments' different incentive and discipline policies.Considering the different carbon emission levels among the green supply chain enterprises,in this paper,the game theory,bi-level programming theory and optimization theory are used to study the situation that the enterprises reduce the carbon emission independently with or without local government intervention and carbon emission trading in chain-to-chain competition of green supply chain respectively.In addition,the cross-regional green supply chain system is extended respectively,and the supply chain coordination model that based on the Stackelberg game and bi-level programming is established,which can figure out the product sales price,unit carbon emissions,the level of government rewards and punishments and carbon emissions trading price equilibrium solution.And the impact of price elasticity coefficient and carbon cost reduction coefficient on supply chain profit and carbon emission are analyzed emphatically.According to the research,the following conclusions can be obtained:1)Business and supply chain earnings are inversely proportional to the price elasticity coefficient and the carbon cost reduction coefficient,and the benefits are guaranteed by reducing the price elasticity coefficient and the carbon cost reduction coefficient;2)In chain-to-chain competition,the enterprises that make decisions later can obtain a higher profit,while the enterprises that make decision first are more conducive to ensure the minimum benefits;the enterprises that make decision first are conducive to control carbon emissions,while the enterprises that make decisions later are more conducive to control the efficiency of carbon emission reduction;3)When the carbon cost reduction coefficient is small,if the government gives subsidies to the enterprise,it can significantly reduce carbon emissions and financial expenditure;if the enterprise transforms its green technology,it can get a better carbon emission reduction result with lower cost.