两货栈库存模型:考虑时变需求和价格折扣

已有的确定性两货栈(自己货栈(OW)及租用货栈(RW))库存模型通常不考虑增加量价格折扣，然而在实际生活中，增加量价格折扣却是促使库存管理者加大订货量的一个重要原因，论文针对需求随时间而变化的物品，通过考虑增加量价格折扣而将两货栈系统作了进一步扩展，在采用间隔式运输模式运送RW的物品到OW的情形下，就缺货要补和缺货不可补而只能损失销售两种情况，分别建立了相应的带有增加量价格折扣并允许短缺的两货栈库存模型，为销售商实际的库存管理决策提供了理论依据。

Two-warehouse inventory model:Considering time-varying demand and price discounts

The existing deterministic two_warehouse (one is own warehouse(OW); the other is rented warehouse(RW))inventory models usually did not consider incremental quantity discounts. However, in real life, incremental quantity discounts is an important factor that makes inventory manager to enlarge order quantity. For items whose demand rate changes over time, this paper further extends two_warehouse system by incorporation incremental quantity discounts. Under the situation of shipping items from RW to OW through emplogying intermittent shipment pattern,two_warehouse inventory models with incremental quantity discounts and shortages permitted are developed respectively for the cases with shortages backlogged or not backlogged. Some theoretical evidences are provided for retailers to make the practical inventory decision.