Abstract: Considering a three-tier green supply chain consisting of manufacturers, third-party logistics providers and retailers, where manufacturers are responsible for producing green products and supplying them to retailers through professional third-party logistics, who sell these products to end consumers. Under the background that both product greenness and carbon emission affect the product demand of the supply chain, two contract coordination mechanisms of green cost-sharing contract and carbon emission reduction cost-sharing contract are considered to study the optimal decision-making problem of supply chain in these two situations. The results show that：after the introduction of green manufacturing cost sharing contract, the greenness of the product will be improved, and the carbon emission in the logistics and transportation process will remain unchanged. After the introduction of the carbon reduction cost sharing contract, the greenness of the product remains unchanged, but the carbon emission is significantly reduced. Both contracts can increase the profits of all members and effectively coordinate the supply chain.

Key words: third party logistics provider, cost sharing contract, carbon emission reduction, green manufacturing

摘要： 考虑由制造商、第三方物流供应商和零售商组成的三级绿色供应链，其中制造商负责生产绿色产品，并通过专业第三方物流将其供应给零售商，零售商将这些产品销售给终端消费者。在产品绿色度和碳排放量同时对供应链的产品需求产生影响的基础上，考虑绿色成本共担合同和碳减排成本共担合同两种契约协调机制，采用Stackelberg博弈，研究这两种情形下供应链的最优决策。研究结果表明，引入绿色制造成本共担契约后，产品的绿色度会得到提高，物流运输过程中的碳排放量不变。引入碳减排成本共担契约后，产品的绿色度保持不变，但是碳排放量显著降低；两种合同都可以提高所有成员的利润，有效地协调供应链。

关键词: 第三方物流, 成本共担契约, 碳减排, 绿色制造