变质性产品库存模型研究:延期支付策略或延期交货策略

Optimal policy for inventory model with deteriorating products:Delay-in-payment or backorder

对于变质性产品的销售,批发商为了减少变质带来的损失以及缩短流通时间,通常会在两种不同营销策略(给予顾客延期支付策略增加市场订购积极性或者采取延期交货策略减少变质损失)中做选择或者采取集成策略.但在实际操作中,如何在这两种营销策略中作出最佳选择是批发商需要考虑的问题.本文分别构建基于延期支付和延期交货的变质性产品库存决策模型,通过对两个库存模型进行分析,给出了最优策略.两个决策模型的最优策略对比结果发现:在其他参数给定的前提下,当产品的售价与进价比偏低时,批发商适合采取延期支付策略;反之,采取延期交货策略.最后利用数值算例分析了相关参数扰动对最优策略的影响,并提出了针对批发商合理制定运营策略的建议.

To sell the deteriorating products timely,distributors want to use different marketing strategies to maximize their profits,i.e.providing the credit period to increase the enthusiasm of buying or taking the delayed delivery strategy to reduce the deteriorating cost.However,for distributors,how to select the optimal strategy is a genuine problem.This paper constructs an inventory model based on a delay-in-payment strategy for deteriorating products and an inventory model based on the delayed delivery strategy,respectively.For such two models,optimal strategies are proposed,respectively.Furthermore,by comparing the two optimal strategies,we find that when the ratio of the sale price and the wholesale price is relatively low while other parameters are given,distributors can take delay-in-payment strategy,otherwise,retailers can take delayed delivery strategy.Finally,by utilizing the numerical examples,we discuss the disturbance of related parameters for the optimal strategy,and also put forward several reasonable suggestions for the distributors.