The results are as the following: 1. the best division points of demandinterval in the case of two stage pricing and three stage pricing are respectively given.
A purchase or production order that occurs at a regular interval and covers the variable demand during that period.
按固定时间间隔发出的采购或生产订单，包括期内变动需求。
3
It inputs parameters such as lead time, customer demand inventory replenishment interval of the horizontal level of service and inventory costs. And some conclusions are drawn.