In this paper, a novel resilient multi-echelon closed-loop location-allocation-inventory problem (RMCLIP) is addressed that optimizes strategic and tactical decisions simultaneously. In order to represent the purchasing cost of raw material from the supplier, a pricing model under quantity discounts is employed in the closed-loop supply chain (CLSC). Considering the capability of returning the ...

Proper inventory management is vital to achieving sustainability within a supply chain and also related company’s cash flow through the funds represented by inventory. Therefore, it necessary balance excess insufficient However, this can be difficult achieve in presence of stochastic demand because decisions must made an uncertain environment policy bears risks associated with each decision. Th...

Professor of Agricultural Economics, Purdue University ewer than ten states tax the assessed value of business inventories as part of the property tax; Indiana is one of them. For years businesses have pressed the Indiana legislature to reduce or repeal this "inventory tax," but a concensus on its eradication has yet to be reached. Most recently, the 1999 session of the Indiana General Assembly...

This paper studies a two-echelon supply chain with stochastic and discrete consumer demand, batch order quantities, periodic inventory review, and deterministic transportation times. Reorder point policies manage inventories at every location. Average inventory, backorders and fill rates are evaluated exactly for each location. Safety stock is evaluated exactly at the lower echelon and a good a...

This thesis studies an inventory-location problem faced by a large manufacturer and supplier of small to medium sized aircraft and their spare parts. The sale of after market spare parts is a major source of revenue for the company, but it is a complex industry with many unique challenges. The original problem is a multi-echelon network design problem, which is decomposed into a facility locati...

The adoption of open architecture has several economic implications in the life of an asset, including developmental, production, storage, training and maintenance costs. This research responds to an inquiry by the Program Executive Officer—Integrated Weapons System (US Department of the Navy) regarding the value of open architecture (OA) in the design of complex assets. With this intent, we ev...

In this paper, we study a logistics network design problem with vendor managed inventory in which the company is in charge of managing inventory for its downstream warehouses and retailers, and can choose whether to satisfy each retailer’s demand. The problem incorporates the location, transportation, pricing, and warehouse-retailer echelon inventory replenishment decisions. Traditionally, thes...

W consider the problem of allocating demand that originates from multiple sources among multiple inventory locations. Demand from each source arrives dynamically according to an independent Poisson process. The cost of fulfilling each order depends on both the source of the order and its fulfillment location. Inventory at all locations is replenished from a shared production facility with a fin...

In this paper, we present a complex distribution network design problem in supply chain system which includes location and inventory decisions. Customers’ demand is generated randomly and each distribution center maintains a certain amount of safety stock in order to achieve a certain service level for the customers it services. Unlike most of past research, our model allows for multiple levels...