現今的零售商在供應鏈中的地位已逐步地提高，供應商為了提高整體供應鏈的利潤，會提出許多有益的方案，以刺激零售商的購買數量，例如 價格折扣分享、數量折扣方案、和買回政策...等。本研究建立的模型，是考慮在不確定的顧客需求下，由供應商提供零售商買回政策，共同分擔商品未銷售完的風險，並且研究如何同時在本模型中執行買回政策與數量折扣方案。 因為本研究是以提高整體供應鏈為目標，當供應商提供買回政策，在最後的數值分析顯示二項結果，第一 供應商佔整體供應鏈利潤的百分比、供應商的單位製造成本以及零售商的單位訂購成本與整體供應鏈利潤是反向變動；第二 未銷售完的商品殘值與整體供應鏈利潤是正向的變動，所以供應商若能對商品進行改良，延長商品的衰退時限或是提高未售完商品的持有價值，可對整體供應鏈利潤的提高達到幫助。 Recently, many retailers become more and more powerful in their supply chains, and their vendors need to supply more schemes for attracting retailers to cooperate with them. We establish a model that could combine buy-back scheme with quantity discount scheme simultaneously in two-echelon supply chains model with one vendor servicing one retailer. Because of implementing two schemes, vendor is not only able to reduce cost but also increase revenue by stimulating retailer’s order quantities. We investigate the equilibrium behavior of decentralized supply chain under demand uncertainty. In our data analysis, when vendor offers buy-back schemes, we find two results under the object of maximizing the supply chain profits. First, the percentage of supply chain profits shared by vendor, vendor’s per-unit procurement cost and retailer’s per-unit order processing cost are decreasing in supply chain profits. Second, salvage value of unsold inventory is increasing in supply chain profits. In other words, if vendor can figure out a way to slow down the decay of inventory, it may create more supply chain profits.
