Research On Cooperative Emission Reduction Of Supply Chain Considering Power Structure Under Carbon Pledge Financing

At present,carbon emission reduction activities are being carried out in China.However,while carbon emission reduction alleviates climate and environmental problems,it also brings pressure to supply chain members in some aspects.In this context,there have been many manufacturers through carbon pledge financing to obtain the capital needed to invest in carbon emission reduction;Some retailers also carry out low-carbon marketing in various ways and join in the carbon emission reduction cooperation of the supply chain,thus forming a joint force with manufacturers to jointly promote the carbon emission reduction of the supply chain.Based on this,this study constructs a two-echelon low-carbon supply chain model consisting of a financially constrained manufacturer and a retailer.The manufacturer invested in carbon reduction technologies using carbon emissions right pledge financing.And the retailer can choose to carry out low-carbon marketing.This paper considers three profit models of supply chain under three different supply chain power structures: no carbon emission reduction in the supply chain,only the manufacturer investment in carbon emission reduction in non-cooperative mode,and the manufacturer and the retailer cooperation in carbon emission reduction.Through the numerical analysis of Matlab software,the optimal decision scheme of manufacturers’ carbon quota pledge rate and retailers’ low-carbon marketing efforts in the supply chain is discussed,and the optimal profit and carbon emission reduction under different circumstances are compared.The main conclusions are as follows:(1)In the supply chain under Nash equilibrium game,the manufacturer has the strongest carbon pledge financing intention and the retailer has the strongest low-carbon marketing intention,so the supply chain always has the highest equilibrium profit and carbon emission reduction level.When the manufacturer leads the Stackelberg game of the supply chain,it only benefits the manufacturer,but hurts the profit of the retailer and the supply chain,and the supply chain has the lowest carbon emission reduction level.(2)When the supply chain does not carry out carbon emission reduction,the increase of carbon emissions damages the interests of the whole supply chain.Compared with no carbon emission reduction,the manufacturer’s investment in carbon emission reduction technology will bring higher economic profits to the members of the supply chain,and thus reduce carbon emissions in the supply chain.When the retailer participates in the cooperation of carbon emission reduction in the supply chain,that is,low-carbon marketing to consumers,it also increases the enthusiasm of the manufacturer to invest in carbon emission reduction.The manufacturer pledges more carbon quotas and conducts financing,which further improves the carbon emission reduction level of the supply chain and members’ profits.(3)The changes of some important parameters affect the profit and carbon emission reduction level of the supply chain.the increase of carbon trading price,carbon emission reduction technology investment conversion coefficient,carbon emission reduction level and low carbon marketing level sensitivity coefficient of consumers can have a positive impact on the profit and carbon emission reduction level of the supply chain.However,the increase of carbon pledge financing rate and low carbon marketing cost coefficient damages the profit of supply chain and carbon emission reduction level.