한국경영과학회지 (Journal of the Korean Operations Research and Management Science Society)

  • 제39권2호
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  • Pages.97-109
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  • 2014
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  • 1225-1119(pISSN)
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  • 2733-4759(eISSN)
한국경영과학회 (The Korean Operations Research and Management Science Society)
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하방 수요 대체가 허용되는 역공급망에서 신제품 및 재생제품 재고 관리

Managing Inventories of Brand-New and Recovered Products in a Reverse Supply Chain with Downward Demand Substitution

  • 김은갑 (이화여자대학교 경영대학)
  • Kim, Eungab (College of Business Administration, Ewha Womans University)
  • 투고 : 2013.08.26
  • 심사 : 2014.05.26
  • 발행 : 2014.06.30
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초록

This paper considers a reverse supply chain with simultaneous recovery of used products and manufacturing of brand-new ones. Recovered products are downgraded and have to be sold in a market different from that of brand-new products at a different price. In case of a shortage of recovered product inventory, a brand-new item, if available, can be offered at the price of a recovered product. In other words, one-way demand substitution is allowed. We address the joint decision of when to manufacture brand-new product, when to recover returned product, and how to control demand substitution to maximize the hybrid production system's profits. To this end, we propose a Markov decision Process model and investigate the structure of the optimal policy. Performance comparison is numerically implemented between the models with and without downward demand substitution option under different operating conditions of the system parameters.

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참고문헌

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