Erratum: Optimizing Strategic Safety Stock Placement in Supply Chains
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Correspondence: Erratum: Optimizing Strategic Safety Stock Placement in Supply Chains
In Graves Willems (2000) we consider the problem of finding the optimal placement of safety stocks in a supply chain with bounded demand and guaranteed service times. We develop a dynamic programming algorithm for supply chains that can be modeled as spanning trees. The intent of this note is to correct an error in the algorithm. Ekaterina Lesnaia of MIT and Dr. Salal Humair of Optiant independ...
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Manufacturing managers face increasing pressure to reduce inventories across the supply chain. However, in complex supply chains, it is not always obviouswhere to hold safety stock to minimize inventory costs and provide a high level of service to the final customer. In this paper we develop a framework for modeling strategic safety stock in a supply chain that is subject to demand or forecast ...
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We consider a multi-stage production/distribution supply chain subject to stochastic demand. We formulate an optimization problem to determine where to place decoupling inventories, so-called strategic inventories, across the supply chain so as to minimize inventory holding costs subject to a service constraint for satisfying customer demand. We assume demand is normally distributed. For each s...
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We present two significant enhancements to the guaranteed-service (GS) model for multiechelon safety stock placement. First, we let each stage’s expected inventory cost be a generalized nonconcave non-closed-form function of its incoming and outgoing service time. This allows the GS model to incorporate important phenomena such as variable stage times and nonnested review periods, which previou...
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A central question in supply chain management is how to coordinate activities and inventories over a large number of stages and locations, while providing a high level of service to end customers. One theoretically and practically important methodology for addressing this problem is the guaranteed service (GS) framework, in which the stages of the supply chain operate according to base stock po...
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ژورنال
عنوان ژورنال: Manufacturing & Service Operations Management
سال: 2003
ISSN: 1523-4614,1526-5498
DOI: 10.1287/msom.5.2.176.16074