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Component procurement and end product assembly in an uncertain supply and demand environment

Author

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  • Ramesh Bollapragada
  • Saravanan Kuppusamy
  • Uday S. Rao

Abstract

In this paper, we examine a multi-product, multi-component, procurement and assembly problem with both supply and demand uncertainties. We explicitly model the uncertainty using a stochastic program that facilitates procurement and assembly decisions. We present a stochastic linear programming model of the problem which we solve using its deterministic equivalent with a finite number of scenarios. We show that the systems performance, i.e. total cost, depends on the order lead time, L, and the assembly lead time Q, only through their sum L+Q$ L+Q $. We illustrate the impact of L+Q$ L+Q $ on system performance with numerical experiments. Also, we illustrate that, in some cases, increasing supplier capacity can worsen system performance. In addition, we identify the key cost drivers that need attention from managers in the manufacturing industry, when there is limited knowledge of future demand and component availability.

Suggested Citation

  • Ramesh Bollapragada & Saravanan Kuppusamy & Uday S. Rao, 2015. "Component procurement and end product assembly in an uncertain supply and demand environment," International Journal of Production Research, Taylor & Francis Journals, vol. 53(3), pages 969-982, February.
    • Handle: RePEc:taf:tprsxx:v:53:y:2015:i:3:p:969-982
    DOI: 10.1080/00207543.2014.951522
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    Cited by:

    1. de Kok, Ton & Grob, Christopher & Laumanns, Marco & Minner, Stefan & Rambau, Jörg & Schade, Konrad, 2018. "A typology and literature review on stochastic multi-echelon inventory models," European Journal of Operational Research, Elsevier, vol. 269(3), pages 955-983.
    2. Giri, B.C. & Bardhan, Sudarshan, 2017. "Sub-supply chain coordination in a three-layer chain under demand uncertainty and random yield in production," International Journal of Production Economics, Elsevier, vol. 191(C), pages 66-73.
    3. Ben-Ammar, Oussama & Dolgui, Alexandre & Wu, Desheng Dash, 2018. "Planned lead times optimization for multi-level assembly systems under uncertainties," Omega, Elsevier, vol. 78(C), pages 39-56.

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