延期支付信用时的库存策略得到了较多的关注,然而对提前支付信用条件下的库存策略研究较少。针对这一不足,研究了需求随机时,在单个供应商和单个零售商组成的供应链中,当供应商的对零售商提前支付给予价格折扣优惠时,零售商的最优采购策略和供应商的最优折扣策略。零售商在给定价格折扣时,确定最优的提前采购批量和总的采购批量,而供应商则根据零售商对价格折扣的反应设定最优的价格折扣策略。数值算例验证了论文的结论。
Inventory policy under delay payment has gained much attention. However, little literature is about inventory policy under advance payment. This paper dealt with the prob- lem of determining the retailer' s optimal ordering policy and supplier' s optimal cash dis- count under the conditions of stochastic demand and a single - supplier, a single - retailer supply chain. Given the cash discount rate, retailer decides the optimal total order size and advance payment order size. The supplier decided the optimal cash discount rate according to retailer's reflecting. Mathematical models have been derived for obtaining the optimal total and early payment quantity for retailer and optimal cash discount rate for supplier. The nu- merical examples are given to illustrate the results in the paper.