Research On Optimal Operation Strategy Of Supply Chain Enterprises Considering Carbon Emission Transfer Under Carbon Regulation

At present,the issue of carbon emission transfer has become the focus of attention.According to estimates,due to the existence of carbon emissions transfer,Between 2000 and 2013,China's total carbon emissions were estimated at about 15%,about 10.6 billion tons(Nature climate Change,Liu et al.,2016),close to China's total carbon emissions in 2017.Similarly,this phenomenon is also widespread in China's provinces and industries.However,according to relevant research findings,whether it is China's provincial carbon emissions transfer or inter-industry carbon emissions transfer,its essence is the transfer of carbon emissions caused by commodity flows between different regions or industries,mainly related to each other in the supply chain.The flow of goods between upstream and downstream enterprises that affect each other.It can be seen that the problem of carbon emission transfer has been widely existed between upstream and downstream enterprises in the supply chain,and ultimately affects the operation strategies of enterprises in the supply chain.Mainly manifested in the following three points:First,the existence of carbon emissions transfer between supply chain enterprises,it is difficult to truly define the carbon emission reduction potential and responsibility of each enterprise,so that the carbon regulatory targets undertaken by enterprises are difficult to truly define;second,supply the disorderly transfer of carbon emissions among chain enterprises will make it difficult to play the overall emission reduction function of the carbon allowance trading system and weaken its implementation effect.Third,the existence of carbon emission shift among supply chain enterprises will make it difficult to truly reduce the total amount of carbon emissions,resulting in macroeconomics.Carbon regulations are invalid.These add new difficulties to the successful implementation of the carbon regulation's intended goals.Therefore,this paper mainly studies the carbon emission shift scenarios of insufficient carbon credits of suppliers,surplus of carbon allowances of manufacturers,surplus of carbon allowances of retailers,surplus of carbon allowances of suppliers,surplus of carbon allowances of manufacturers,and insufficient carbonquota of retailers.Next,consider the optimal operational strategy between three-tier supply chain enterprises affected by carbon emissions.On the basis of constructing the supply chain super-network equilibrium model considering the impact of carbon emission shift,the variational inequality and the modified projection algorithm are applied to solve the overall equilibrium of suppliers,manufacturers,retailers and super-networks respectively,and extract the optimal ones.Decision-making behavior;Finally,the automobile industry was used as an example to verify the impact of carbon allowances and supply chain carbon emissions transfer rates on network equilibrium.The results show that:(1)Under the consideration of carbon emission transfer,the network's endogenous carbon emission transfer rate can make up for the shortage of supplier carbon allowance,which helps to ensure that the supplier's carbon emissions are under the government's carbon quota.(2)When the manufacturer's carbon quota is increased,the carbon emission transfer rate from the supplier to the manufacturer is increased,and the manufacturer should increase the wholesale volume and increase the transaction price to increase its profit;(3)Retail the increase in commercial carbon quota will lead to an increase in the carbon emission transfer rate from the manufacturer to the retailer,and the purchase price of the retailer product will increase.The loss of profits due to the increase in procurement costs can be offset by increasing the sales price.(4)As the carbon emission transfer rate increases,the number of network equilibrium transactions in the supply chain super network generally shows a downward trend,and the network equilibrium transaction price generally shows an upward trend;(5)In the case of changes in market demand,relevant government departments need to pay attention to the impact of carbon emissions transfer on carbon quota policy formulation.As the carbon emission transfer rate increases,the overall carbon emissions of the network show a downward trend.(6)In order to maximize the profits of the network in the equilibrium state,members of the network need to change their business decisions to a certain extent according to the scope of the carbon emission transfer rate in the face of changes in market demand.(7)Due to the carbon emission transfer effect,the overall profit of the supplychain declines,and supply chain enterprises should be alert to the impact of carbon emissions transfer.