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    • The Complexity of Safety Stock Placement in General-Network Supply Chains 

      Lesnaia, Ekaterina; Vasilescu, Iuliu; Graves, Stephen C. (2005-01)
      We consider the optimization problem of safety stock placement in a supply chain, as formulated in [1]. We prove that this problem is NP-Hard for supply chains modeled as general acyclic networks. Thus, we do not expect ...
    • Optimizing Safety Stock Placement in General Network Supply Chains 

      Graves, Stephen C.; Lesnaia, Ekaterina (2004-01)
      In the paper, we minimize the holding cost of the safety stock held in a supply chain modeled as a general network. By our assumption, the demand is bounded by a concave function. This fact allows us to formulate the problem ...