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An important observation in supply chain management, known as the bullwhip effect, suggests that demand variability increases as one moves up a supply chain. In this paper we quantify this effect for simple, two-stage supply chains consisting of a single retailer and a single manufacturer. Our...
Persistent link: https://www.econbiz.de/10009214194
and underordering may occur. We also investigate the impact of these biases on several other inventory settings that have …, and inventory pooling. We find that incorporating decision noise and optimization error yields results that are consistent …
Persistent link: https://www.econbiz.de/10009218743
An almost universal assumption in the bullwhip effect modeling literature is that excess goods may be returned without restriction. We seek to determine if returns impact the level of bullwhip effect observed in a multi-stage supply chain. We build a hybrid agent/discrete-event simulation model...
Persistent link: https://www.econbiz.de/10010755007
Original Equipment Manufacturers (OEM's) of advanced capital goods often offer service contracts for system support to their customers, for which spare parts are needed. Due to technological changes, suppliers of spare parts may stop production at some point in time. As a reaction to that...
Persistent link: https://www.econbiz.de/10011209336
In this study, we investigate a single-item, periodic-review inventory problem where the production capacity is limited …
Persistent link: https://www.econbiz.de/10011010823
Batching customer orders in a warehouse can result in considerable savings in order pickers’ travel distances. Many … picker-to-parts warehouses have precedence constraints in picking a customer order. In this paper a joint order-batching and … picker routing method is introduced to solve this combined precedence-constrained routing and order-batching problem. It …
Persistent link: https://www.econbiz.de/10011097683
Batching plays an important role in performance evaluation of manufacturing systems. Three types of batching are … commonly seen: transfer batches, parallel batches and serial batches. To model the batching behavior correctly, a comprehensive … classification of batching is proposed. Eight types of batching behavior are classified and corresponding queueing models are given …
Persistent link: https://www.econbiz.de/10011097859
In a supply chain, a manufacturer receives jobs from suppliers at distinct time points, and produces and delivers final products to customers in batches. The manufacturer can be modeled as a single machine in the supply chain and the problem can thus be modelled as minimizing the sum of weighted...
Persistent link: https://www.econbiz.de/10010869079
produced inventory will have imperfect quality, where P is a random variable with a known distribution. We consider a 100 … scenarios we derive closed-form expressions for both the economic production quantity and the batching policy, and show that our …
Persistent link: https://www.econbiz.de/10010597263
batching decisions, we propose a tabu search algorithm which consists of various neighborhood functions, multiple tabu lists … benefits of batching. …
Persistent link: https://www.econbiz.de/10010597707