二层信用策略下部分延期付款的库存模型

An Inventory Model under Two Levels of Trade Credit Policy and Retailer Partial Permissible Delay in Payments

当前二层信用期相关文献考虑的都是零售商提供给其顾客相同的信用期,但现实中零售商往往会根据物品的种类不同提供给顾客不同的信用期.为研究此问题,建立了优化供货周期使零售商平均相关成本最小的库存模型,证明了最优供货周期的存在性,并给出实例加以说明.

Previous inventory model under two levels of trade credit usually assumed retailer would offer single trade credit period to his/her customers.But in practice,to stimulate his/her customers demand and reduce default risk,retailer would offer different trade credit to his/her customers.The article establishes retailer offer his/her customers different partial trade credit when their buy different products.The proposed model is to minimize the total relevant cost per unit time for retailer.The existence of the optimal replenishment period is proved.Finally,numerical examples and sensitive analysis of the parameters are presented to illustrate the proposed model.