Research On Low-carbon Operation Strategy Of Risk-averse Closed-loop Supply Chain

With the rapid development of sustainable economies,reducing carbon emissions has become a common concern.Relevant organizations have enacted legislation or policies to reduce carbon emissions,such as carbon cap-and-trade regulations,mandatory carbon emissions capacity and carbon tax.Under the pressure of relevant regulations enacted by the government,in order to reduce their own carbon emissions,enterprises and units commonly choose to introduce green technology or emission reduction equipment.On the other hand,the shortage of natural resources and the deterioration of environmental pollution also makes the recycling and remanufacturing of waste products increasingly important for society.According to the analysis,the quality of the remanufactured product is no different from that of the new product.However,the consumption of raw materials can be reduced by half,the recycling utilization of resources can be improved,and the negative impact on the environment can be reduced.In addition,in the current economic environment with fierce competition,market uncertainty and diversification bring high risks to the operation of supply chain enterprises.Therefore,enterprise decision makers often have the preference of risk aversion.Based on the above analysis,studying the decision-making problem of a risk-averse closed-loop supply chain from the perspective of low-carbon emission reduction has great theoretical value and practical significance.This paper considers the operational strategy of a risk-averse closed-loop supply chain under the carbon policies.The structure of the article is as follows:In chapter 1,the background research and significance of this paper are mainly introduced.We cover a research overview of carbon policies,risk aversion attitude and closed-loop supply chain,as well as summarize the main research content and innovations of this paper.The second chapter studies the operation optimization model of the risk-averse remanufacturing system under different carbon policies.In this chapter,we consider a remanufacturing system with a risk-averse manufacturer/remanufacturer under the carbon tax policy and mandatory carbon emissions capacity regulation.Using the conditional Value-at-Risk criterion(CVa R),we solved the optimal equilibrium strategies under the different carbon reduction policies,and the impacts of the risk aversion coefficient on the operation decision of manufacturer was further analyzed.Finally,the optimal strategies of the remanufacturing system under the two carbon policies are compared by numerical experiments and the theoretical results are verified.Chapter three studies the operation optimization model of a risk-averse closed-loop supply chain under a carbon tax policy.In this chapter,we study a two-stage closed-loop supply chain consisting of a risk-averse manufacturer and a risk-neutral retailer under the carbon tax policy,and establish manufacturer-led and retailer-led closed-loop supply chain models under the constraint of carbon emissions reduction respectively.Considering manufacturer want to decide whether investing in sustainable technology reduces carbon emissions under the carbon tax policy,the mean variance method(MV)is used to solve the equilibrium strategy of the two models.Following this,two optimization models for decentralized systems with and without technology investment are compared.Finally,numerical examples are used to verify the theoretical results and analyze the effects of manufacturers' risk aversion parameters on supply chain operation strategy.In chapter 4,the main conclusions and future prospects are summarized.