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Optimal expediting decisions in a continuous-stage serial supply chain

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Author Info

  • Berling, Peter

    (Lund University)

  • Martinez de Albeniz, Victor

    ()
    (IESE Business School)

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    Abstract

    In this paper, we analyze expediting decisions in a continuous-time, continuous-stage serial supply chain facing a Poisson demand process. For each unit in the chain, one must decide at which speed it should be moved downstream, given the state of the system, so as to minimize total supply chain costs. We decompose the problem into a set of one-dimensional subproblems that can be easily solved and characterize the optimal expediting policy: under quite general assumptions, the optimal speed of a given unit accelerates upstream, and then slows down downstream. We finally provide a case study where we estimate the benefits of expediting compared to a fixed transportation speed and show them to be significant.

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    Bibliographic Info

    Paper provided by IESE Business School in its series IESE Research Papers with number D/906.

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    Length: 31 pages
    Date of creation: 03 Feb 2011
    Date of revision:
    Handle: RePEc:ebg:iesewp:d-0906

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    Postal: IESE Business School, Av Pearson 21, 08034 Barcelona, SPAIN
    Web page: http://www.iese.edu/
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    Related research

    Keywords: lead-time management; optimal control; unit-tracking decomposition;

    This paper has been announced in the following NEP Reports:

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