| Summary: | 碩士 === 國立成功大學 === 工業與資訊管理學系碩博士班 === 101 === The acquisition cost of raw materials is gradually rising, and an increasing number of international laws and regulations related to environmental protection are now being implemented. Therefore, the topic of reverse logistics in green supply chain has become more important, especially with regards to issues of returned purchases, replacement of products, and repair of goods. Goods such as foods or seasonal items which lose their value during the selling period, are most likely to be returned. It is thus necessary for manufacturers to establish a buyback policy that allows unsold goods to be returned at the end of the sales season.
Buyback policies have been widely discussed in the literature, but most related studies are concerned with how to establish guidelines for proportions of returned quantities, the sales price, as well as on the profits of retailers. In addition, the sales price is affected by the proportions of returned goods. But, the previous literature seldom considers the profitability of manufacturers. Therefore, this research has the objective of minimizing the manufacturer’s costs by establishing an economic production/rework quantity model for deteriorating goods. After establishing the model, we used some mathematics software to compute the optimal solution. A sensitivity analysis and experimental design were then used to find the critical factors which affect the solution the most. At the end of this research, we also discussed managerial implications and provided suggestions for future studies.
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