模糊需求下三级闭环供应链协调的收入共享契约研究

Revenue sharing contract on the coordination of three-stage closed-loop supply chain under fuzzy demand environment

闭环供应链中往往会产生正反两方向的"双重边际化效应",造成供应链系统效率的损失。研究了一个由制造商、零售商和第三方回收商组成的三级闭环供应链系统在模糊需求环境下的协调机制,分析了三方在分散决策和集中决策两种情形下的决策过程,并给出收入共享契约机制下的决策模型。最后通过一个算例分析表明,模糊需求环境下,收入共享契约机制可以有效协调闭环供应链中各方利润,并使供应链系统的总利润达到集中决策时的水平。

It tends to produce the ＂double marginalization effect＂ of both forward and reverse direction in closed-loop supply chain, resulting in the supply chain system efficiency losses. In a three-stage closed-loop supply chain composed of a manufacturer, a retailer and a third-part recycler, the coordination mechanism in fuzzy demand environment is researched. The parameters of demand function are considered as triangular fuzzy numbers. The decision processes are analyzed under the decentralized and centralized decision, and the decision model under revenue sharing contract mechanism is built. At last, for direct analysis, a numerical example is given which suggests that the revenue sharing contract can coordinate the profits of members in fuzzy demand environment and make the total profit of supply chain systems reach the level of centralized decision.