碳税约束下零售商减排成本分担合同研究

Supply Chain Analysis under Carbon Tax and Cost Sharing Contract

在考虑碳税和消费者低碳意识下,从供应链之间合同关系的角度研究合同形式对制造商减排及供应链成员利润的影响。首先求出分散式供应链下制造商的最优碳排放量和批发价及零售商的边际利润,然后求出减排成本分担和成本分担下纳什讨价还价模型下零售商的最优分担比例,并对3种情况进行对比分析。研究发现,减排成本分担和成本分担下纳什讨价还价模型中制造商的最优碳排放量要低于分散式供应链下制造商最优碳排量,其零售商和制造商的均衡利润也要高于分散式供应链。通过数值分析,分析减排成本对于制造商和零售商均衡利润及分担比例的影响。

Considering carbon tax and consumers＇ low carbon consciousness,the equilibrium solutions of price,per- unit carbon emissions and profits were obtained under the decentralized supply chain and then retailer＇s optimal allocation proportion was worked out under cost sharing and Nash bargaining model. The paper analyzed three situations comparatively. It showed that the equilibrium solutions of per- unit carbon emissions under cost sharing and Nash bargaining model were lower than that under the decentralized supply chain; the equilibrium solutions of profit under cost sharing and cost- sharing under Nash bargaining model were superior to others. The paper analyzed the influence of carbon emission reduction cost on the profit and allocation proportion through numerical analysis.