动态持有成本下的库存成本模型研究

对制造业企业来说,更大的生产能力就有机会带来更多的销量，所以在库存模型中需求率是与库存量正相关的变量,而并非在整个在库时间内都保持为常量。论文提出了一种库存成本与需求率分别和库存时间与库存量相关的模型，并针对两种成本结构各设计了一种优化算法以确定最优订购量和最优库存时间。

Research on Inventory Cost Model with Dynamic Holding Cost

Inventory models in which the demand rate depends on the inventory level are based on the common real-life observation that greater product availability tends to stimulate more sales. Previous models incorporating inventory-level dependent demand rate assume that the holding cost is constant for the entire inventory cycle. This paper considers the inventory policy for an item with a stock-level dependent demand rate and a storage-time dependent holding cost. Two time-dependent holding cost step functions are considered, and procedures are developed for determining the optimal order quantity and the optimal cycle time for both cost structures.