Abstract
This is a study on the decision of the stock level in a multi-stage inventory model based on the base stock system. The policy of this model is such that the orders with a long delivery time are filled by the goods which will be finished at the time of delivery specified by the customers. First, the order quantity and the delivery time are decided based on a certain distrbution. And the policy mentioned above assigns each order to some stages. Then, the base stock level at each stage is decided when the base stock system is applied to the series type and the branching type inventory model.
