在考虑市场需求是库存水平线性分段函数、变质性产品和零售商采用(S,s)订货策略的情形下,本文研究了由一个供应商和一个零售商构成的供应链系统运作协调问题。给出了可以实现供应链完美协调的数量折扣策略,理论证明了模型最优解的存在性和唯一性,同时提供了相应的求解方法。数值算例结果表明该折扣模型对于改善供需双方绩效和供应链运作协调是十分有效的。 Considering that the market demand is linear piecewise function of inventory level, and the ordering strategy of (s, s) is adopted by deteriorating products and retailers, this paper studies the coordination of the operation of supply chain system composed of one supplier and one retailer. The quantitative discount strategy which can achieve the perfect coordination of the supply chain is given. The theory proves the existence and uniqueness of the optimal solution of the model and provides the corresponding solution method. The numerical example shows that the discount model is very effective in improving the performance of both supply and demand and the coordination of supply chain operation.