Research On Emission Reduction Decision And Coordination Of Closed Loop Supply Chain Under Different Low Carbon Policies

In the context of low-carbon era,it is imperative to develop low-carbon economy.Government reports have repeatedly proposed that environmental protection and energy consumption reduction should be the main tasks.Not only is the government vigorously promoting low-carbon policies such as carbon trading and carbon tax,but enterprises are also constantly investing in the research and development of carbon emission reduction technologies.There are also issues arising from the failure of enterprises to cooperate effectively in reducing emissions,which poses significant challenges for enterprises and prevents governments from integrating low carbon mechanisms into enterprises,limiting the overall effectiveness of the closed loop supply chain.This article takes the closed-loop supply chain as a whole to view and study the emission reduction behavior under different low-carbon policies.It constructs a closed-loop supply chain that includes a single manufacturer and a single retailer,with retailers as leaders and manufacturers as followers.Based on the actual situation of enterprises and society under current low-carbon policies,it introduces manufacturers’ independent emission reduction investment and consumers’ low-carbon preferences,Study the optimal carbon reduction emissions and profits of various participating entities in the closedloop supply chain under carbon tax policies and carbon quota and trading policies,and design emission reduction cost sharing contracts and emission reduction benefit sharing contracts.Compare the carbon reduction emissions and profit levels before and after the contracts and between the two contracts,and then compare the total profits of the closed-loop supply chain under different low-carbon policies,Finally,use Matlab R2021 a to analyze the model,verify the influence of different parameters on optimal decision-making,compare the effects of different low-carbon policies,provide oriented policy suggestions for the government to implement low-carbon emission reduction,and provide guidance for enterprises to reduce carbon emissions.It provides management enlightenment to promote win-win situation of environmental benefits and economic benefits.The research found that:(1)The implementation of emission reduction cost sharing contract and emission reduction benefit sharing contract is conducive to promoting emission reduction;(2)Under the carbon tax policy,when the carbon tax rate is high,the emission reduction cost sharing contract and emission reduction benefit sharing contract can improve the profit of the manufacturer,and at the same time,compared with the two contracts,the coordination effect of the emission reduction cost-sharing contract is better;(3)Under the carbon cap and trade policy,the implementation of the emission reduction cost-sharing contract will definitely increase the cost of manufacturers and retailers,while profit-sharing contracts for emission reductions will increase the profits of retailers,but only under certain conditions will it be beneficial to the profits of manufacturers;(4)The higher the degree of consumers’ low-carbon preference,the more conducive to closed-loop supply;(5)From the perspective of the total profit of the closed-loop supply chain,when the carbon tax rate and carbon trading price formulated by the government are high,it is easier to adopt the carbon quota and trading policy to bring more benefits to the closed-loop supply chain.The contract coordination mechanism has a better improvement effect on the closed-loop supply chain under carbon quotas and trading mechanisms than on the closed-loop supply chain under carbon tax policies.