期刊
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
卷 218, 期 1, 页码 106-112出版社
ELSEVIER
DOI: 10.1016/j.ejor.2011.10.016
关键词
Inventory; Deterioration; Partial backlogging; Preservation technology investment
资金
- National Science Council of the Republic of China [NSC-100-2221-E-366-006, NSC-100-2221-E-156-002]
In this paper, considering the amount invested in preservation technology and the replenishment schedule as decision variables, we formulate an inventory model with a time-varying rate of deterioration and partial backlogging. The objective is to find the optimal replenishment and preservation technology investment strategies while maximizing the total profit per unit time. For any given preservation technology cost, we first prove that the optimal replenishment schedule not only exists but is unique. Next, under given replenishment schedule, we show that the total profit per unit time is a concave function of preservation technology cost. We then provide a simple algorithm to figure out the optimal preservation technology cost and replenishment schedule for the proposed model. We use numerical examples to illustrate the model. (C) 2011 Elsevier B.V. All rights reserved.
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