碳交易机制下考虑竞争和信息非对称的供应链协调研究

本文在碳交易机制下,考虑制造商之间存在竞争且减排成本系数为低碳制造商私有信息的情况,分别构建信息完全对称和信息非对称情形下的供应链模型,对低碳制造商减排率和产品销售价格进行决策。通过引入由批发价和成本共担组成的联合契约,促使低碳制造商传递真实的减排成本信息,并通过算例对碳交易价格和减排成本系数等进行灵敏度分析。研究发现:引入联合契约能够使得信息非对称下的供应链利润基本达到集中决策水平;碳交易价格的增加会激励制造商积极减排、降低碳排放总量、提高供应链利润;低碳制造商减排成本系数的降低有助于减少碳排放量、增加产品市场需求、实现供应链利润增长。

Study on the Coordination of Supply Chain Based on Carbon Trading Mechanism Considering the Competition and Asymmetry Information

In this paper, under the carbon trading mechanism, considering that there is competition among manufacturers and the cost coefficient of emission reduction is the private information of low-carbon manufacturer, supply chain models under the condition of information symmetry and asymmetry are constructed respectively to make decisions on emission reduction rate and product sales price of low-carbon manufacturer. By introducing a joint contract which consists of wholesale price and cost sharing, the low-carbon manufacturer is encouraged to transfer the real information of emission reduction cost, sensitivity analysis of carbon trading price and emission reduction cost coefficient is carried out through calculation examples. The results show that the introduction of joint contract can make the profit of supply chain under asymmetric information reach the level of centralized decision. The increase in carbon trading price will encourage manufacturers to reduce emissions actively, reduce total carbon emissions and improve the profits of supply chain. The lowering of emission reduction cost coefficient of low-carbon manufacturer is conducive to reducing carbon emissions, increasing product market demand and realizing profit growth of supply chain.