A lagrangian relaxation approach to simultaneous strategic and tactical planning in supply chain design

Ali Diabat, Jean Philippe Richard, Craig W. Codrington

Research output: Contribution to journalArticle


We study a multi-echelon joint inventory-location model that simultaneously determines the location of warehouses and inventory policies at the warehouses and retailers. The model is formulated as a nonlinear mixed-integer program, and is solved using a Lagrangian relaxation-based approach. The efficiency of the algorithm and benefits of integration are evaluated through a computational study.

Original languageEnglish (US)
Pages (from-to)55-80
Number of pages26
JournalAnnals of Operations Research
Issue number1
StatePublished - Jan 1 2013



  • Facility location
  • Joint inventory-location
  • Lagrangian relaxation
  • Supply chain management

ASJC Scopus subject areas

  • Decision Sciences(all)
  • Management Science and Operations Research

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