隨著各國政府制定相關回收法規與民間環保意識的崛起，越來越多的廠商及企業開始關注再製造活動所能帶來之利益。再製造活動中，妥善的回收顧客手中產品不只可為廠商帶來可觀利潤也可讓顧客有再次消費的機會；以往產品的回收取決於顧客本身意願，使得廠商無法得知顧客歸還時間及產品狀況進而影響到產品再製時的價值；本研究藉由建立兩期模型探討：廠商主動採取回收作業並將再製品銷售於市場時之獲利情形；其中模型包含兩個部分，第一期為市場銷售期，第二期為產品的回收期，在市場的銷售期部分，本研究考量當市場上存有潛在競爭對手時，新產品之最佳定價；為使得產品的再製於產品生命週期內進行，本研究藉由顧客對於產品之效用及產品剩餘價值來推估顧客歸還機率，並探討當廠商採取折舊換新(Trade-in Rebates)策略時，兩種不同回收方式：(1)固定時點回收及(2)連續期間回收，對於其再製利潤之影響為何。研究結果發現，在固定時點回收時，決定廠商何時回收產品之時點取決於市場中產品的新舊狀況；而當廠商欲採取連續期間回收時，在市場上產品新舊狀況在一定比例時其再製利潤為最大，且其再製利潤將隨起始回收時間越晚而呈現遞減的狀況。

This study constructs a two-echelon model to investigate the profitability of the firm who actively recycles used products and then sells remanufactured ones in the market. The new product for market sales is investigated at the first stage, and the recycling of the used product and selling of the new and remanufactured ones simultaneously at the second stage. This study also considers consumer utility and the product life cycle to estimate the remaining value of the product, and then evaluate the probability of product return. In the consumer return behavior situation, we provide two different product collection approaches (i)fixed point recycling (ii)continuous period recycling, and using trade-in rebates to attract consumers to return products. This study investigates the firm’s profit for remanufacturing the used product. In comparing the two different collection scenarios, we can show that the product age, collection cost and cost saving have great impact which influence the firm’s profit.

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