关键词: 信息分享, 绿色供应链, 双渠道, 产品绿色度

Abstract: This paper aims at studyingthe effect of retailer’s demand information sharingonthe performance of dual-channel green supply chain. The green supply chain decision-making models with or without information sharing are established and solved by using incomplete information dynamic game method, and then the Bayesian equilibrium solutions and the optimal expected profits are obtained. The results show that in the dual-channel green supply chain,information sharing can motivate the manufacturer to improve product's green degree when the retailer is optimistic about the potential demand. Moreover, information sharing is always beneficial to the manufacturer. However, whether the retailer has an incentive to share demand information is uncertain. When the manufacturer’s green investment efficiency is higher, the retailer can obtain more profits from information sharing, otherwise the retailer would suffer a profit loss. Furthermore, the impact on the performance of the whole green supply chain depends on the competition intensity, the market share of direct channel and the green investment efficiency. Finally, the validity of the model and conclusions are verified by numerical simulation.

Key words: information sharing, green supply chain, dual channel, product green degree