We consider assemble-to-order (ATO) inventory systems with a general bill of materials and deterministic lead times. Unsatisfied demands are always backlogged. apply four-step asymptotic framework to develop policies for minimizing the long-run average expected total cost. Our approach features multistage stochastic program (SP) establish lower bound on cost determine parameter values control. ...

Graph theory is a very natural and powerful tool in combinatorial operations research. Some important operations research problems particularly inventory control problem that can be solved using graphs. A brief review of graph theory applications to problems of inventory systems are made in this paper. It suggests the possibilities which exist for improving the operational, tactical and strateg...

This paper investigates the performance of different hybrid push-pull systems with a decoupling inventory at the semi-finished products and reordering thresholds. Raw materials are ‘pushed’ into the semifinished product inventory and customers ‘pull’ products by placing orders. Furthermore, production of semi-finished products starts when the inventory goes below a certain level, referred to as...

We study a supply chain consisting of production-inventory systems at several locations which are coupled by common supplier. Demand customers arrives each production system according to Poisson process and is lost if the local inventory depleted ("lost sales"). To satisfy customer's demand server needs raw material from associated inventory. The supplier manufactures replenish inventories, con...

Members of supply chain carry inventory for different purposes. To effectively reduce the cost of inventory, information sharing mechanism is the key. The inventory can be managed in two ways in supply chain systems. The first one is the centralized inventory management system, in which, the information of inventory is highly exchanged among supply chain members. The other is the decentralized ...