滞后效应影响下低碳供应链减排投入与零售定价

考虑减排投资效果滞后效应的影响,构建低碳供应链纵向合作减排微分博弈模型.运用微分对策理论,得到分散式决策和集中式决策下低碳供应链的最优减排努力投入、宣传努力投入和零售定价策略,以及分散式决策下制造商的合作减排支付比例,并对不同决策机制下供应链成员的均衡策略进行比较分析.研究发现:集中式决策下,制造商减排努力投入和零售商宣传努力投入均高于分散式决策下的相应值;滞后时间存在一个阈值,只有滞后时间低于该阈值时,集中式决策才能提升整个供应链系统的经济绩效.

Carbon emissions reduction and retail pricing strategies in a low-carbon supply chain with lag effect

By considering the lag effect of mitigation investment, the differential game models are developed for vertical cooperative mitigation in a low-carbon supply chain. By applying the differential game, the optimal strategy problems of emission reduction investment, promotion investment and pricing are investigated in the decentralized and centralized decisions, respectively. Also, the optimal sharing rate of manufacturers is given in the decentralized decision. The paper comparatively analyzes the optimal equilibrium strategies in the two decision systems. The results show that the emission reduction investment of manufacturers and promotion investment of retailers are higher in the centralized decision than that in the decentralized decision, yet the economic performance of the low-carbon supply chain can be improved with the help of centralized decision when lag time is less than a given threshold value.