Journal
INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
Volume 71, Issue 1-3, Pages 447-456Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0925-5273(00)00142-0
Keywords
product recovery; remanufacturing; lot sizing; inventory management
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In this paper, the reverse Wagner/Whitin model is extended to the case with additional variable manufacturing and remanufacturing cost. This model can be regarded as a combination of the classical Wagner/Whitin model and a pure reverse Wagner/Whitin model with given returns of used products. The combined model is more appropriate to practice, if the alternate application of remanufacturing and manufacturing processes is analysed. For the case of time-constant cost and demand data we prove the optimality of a policy starting with remanufacturing before switching to manufacturing and give an estimation for the optimal switching point. Finally, it is investigated how the disposal of excess inventory would change the solution. (C) 2001 Elsevier Science B.V. All rights reserved.
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