A Study on Periodic Review Systems with Limited Production Capacity
|關鍵字:||供應鏈;定期盤存;動態規劃;訂購後水準;Supply chain;Periodic review;Dynamic programming;Order-up-to level|
Periodic review inventory control models are widely used in practice, especially for inventory systems in which many different items are purchased from the same supplier. However, all periodic review models have assumed that the periodic order quantity can be fulfilled. In practice, the periodic order quantity may not be completely fulfilled. Such periodic systems result mainly from the limited production capacity of the upstream supplier (when the item is purchased outside) or the firm itself (when the item is produced in house). Although the production/inventory literature has investigated the capacitated periodic production systems, and showed that the optimal policy is of the modified order-up-to type. The issue of computing the optimal order-up-to level remained unanswered. In this research, we use dynamic programming to model capacitated periodic production systems. We assume that the period demand is independently and identically distributed. Preliminary results show that the optimal order-up-to level can be computed by using a convergence theorem. In addition, we compare it to the ordinary order-up-to level for periodic production systems with unlimited capacity. We believe that the proposed model can be immediately applied in practice.
|Appears in Collections:||Research Plans|