基于线性时变需求的鲜活农产品三级供应链协调

针对一个供应商-分销商-零售商构成的鲜活农产品三级供应链，基于线性时变需求，利用时间折扣契约实现了供应链的协调，并求出了使供应链各节点企业达到共赢的契约参数的取值范围。同时对产品变质率的变化率θ和需求量的变化率b进行了敏感性分析，提出在时间折扣契约的基础上，零售商通过加强库存管理也可以有效延长供应链的最优订货周期。

Coordination of 3-Tier Supply Chain of Fresh Agricultural Products under Linear Time-Varying Demands

The supply chain considered in this paper is composed of a manufacture，a distributor, and a retailer for fresh agricultural products. For such products, the demands are time varying. A mathematical model is developed to describe the coordination for such a supply chain. Based on this model, analysis shows that the supply chain can be coordinated by using time discounting contracts by properly regulating the contract parameters. Method is presented to determine the range of the contract parameters such that win win can be realized. Besides, sensitivity analysis is conducted with respect to deterioration rate and demand variation, respectively. Results show that the retailer is able to extend the order cycle by improving inventory control.