This paper studies a finite horizon, single product, periodic review inventory system with two supply nodes. Supply nodes are differentiated by their fixed and variable costs, delivery lead times, as well as constraints on the order sizes. The buyer faces interesting tradeoffs: Procuring from one of the supplier, referred to “onshore supplier”, involves a high variable cost but a shorter delive...

vendor managed inventory is a continuous replenishment program that is designed to provide major cost saving benefits for both vendors and retailers. previous research on this area mainly included single objective optimization models where the objective is to minimize the total supply chain costs or to maximize the total supply chain benefits. this paper presents a bi-objective mathematical mod...

As the world market for telecommunications underwent a massive downturn in the early 2000s, Motorola, Inc. needed to cut costs and increase productivity throughout its operations. It had to identify a method of reducing the time and effort required to prepare for and conduct negotiations with its suppliers, simplify their coordination, and optimize contract awards across sectors, to save costs....

over the past few decades, several models such as the lp model have been used for managing watersheds and determining optimal cultivation pattern for agricultural planning. management and planning methods are the most important applied tools of management science for optimal allocating resources in order to gain the most profits in the different fields including natural resources, water resourc...

In this paper, we devise a framework for obtaining the optimal ordering policy in a single location, continuous review inventory system with arbitrary inter-demand times. We show that it is optimal to order at demand arrival epochs only if the inter-demand time has constant or decreasing failure rate (CFR or DFR). When the inter-demand time has increasing failure rate (IFR), we show that the op...

Supplier selection is an important problem in supply chain management (SCM), and has attracted the attention of many researchers. Tremendous effort has been spent on the development of agent-based systems to automate supplier selection negotiation process in SCM applications. In this kind of multiagent system (MAS), software agents are established to represent various parties and functions invo...

Supplier selection is an important issue in supply chain management. In recent years, determining the best supplier in the supply chain has become a key strategic consideration. However, these decisions usually involve several objectives or criteria, and it is often necessary to compromise among possibly conflicting factors. Thus, the multiple criteria decision making (MCDM) becomes a useful ap...

This paper studies an inventory policy for a retailer who orders his products from a supplier whose deliveries only partially satisfy the quality requirements. We model this situation by an infinite-horizon periodic-review model with binomial random yield and positive lead time. We propose an orderup-to policy based on approximating the inventory model with unreliable supplier by a model with a...