购买费用的滞后支付对库存系统最优订货策略的影响

通过考虑资金时值而建立了带有两种不同滞后支付规则：（１）固定滞后支付期；（２）边销售边支付的库存系统在有限计划期内的经济订货量模型，讨论了模型解的存在与唯一性，提供了模型寻求最优解的一种简便方法，并给出了应用实例.

The Effect of the Delayed Payment for Purchasing Cost on the Optimal Order Policy of Inventory System

In this paper, the economic order quantity models are developed, by considering the time-value of money, for the inventory system in finite planning period with two rules of the delayed payment: (1) the fixed terms of the delayed payment,and (2) payment follows the sale of items immediately.The existence and uniqueness of the models are discussed.A simple method is presented for finding the optimal order policy of inventory system under the above both rules of the delayed payment. Some applied examples are shown.