【摘要】 带有固定保质期物品的订货是供应链终端销售系统的一个重要决策问题,假设需求依赖库存展示水平并考虑"后进先出"的销售策略而建立了相应的库存决策模型,其中物品在固定保质期内仍具有常数的变质速率.然后以系统平均利润最大化为目标讨论了模型最优解的存在性及唯一性,并提供了寻求模型整体最优解的简单方法.最后给出应用实例,并分析了模型参数变化对最优订货策略的影响.更多还原

【Abstract】 The order decision for the items with fixed lifetime is important to the retail systems in a supply chain such as supermarket.An EOQ model is developed by considering the demand rate as a polynomial function of the retailer’s current inventory level and the last-in-first-out(LIFO) issuing policy.The items will start to deteriorate as soon as they get into the warehouse and the deteriorating rate is a constant.Then we provide the necessary and sufficient conditions of the existence and uniqueness of the optimal solutions that could make the average profit per unit time to a maximum.An easy-to-use solution procedures are shown to find the optimal replenishment policy of the considered problem.At last,numerical examples are presented and the sensitive analysis of parameters are also given to illustrate the developed model.更多还原