Profit sharing application model - The case of a liquid electronic waste recycling plant

[[abstract]]隨著對於環境保護的日趨重視，工廠廢棄物必須得到妥善的管理與處理。透過再利用廠對廢水進行加工再製造過程，能從工業用廢水中提煉出有價金屬進行回收再利用，可落實「把垃圾變黃金」這個理念。在此回收供應鏈中，再利用廠與原料商兩者無疑是利潤最大收穫者。 本研究針對由單一電子廠、單一再利用廠、與單一原料商所組成的三階供應鏈，在貴金屬市場需求不確定假設下，進行利潤分享合約應用的探討。本研究利用數學推導的方式，以單期訂購模式架構為基礎，建構供應鏈的利潤模型，由原料商決定供應鏈的最佳訂購量，以應付隨機的貴金屬市場需求。模式中分別探討供應鏈在有、無合作基礎下兩種交易情境的決策，決策目標也分別就（1）成員自身利潤最大化、與（2）電子廠、再利用廠與原料商三者合作利潤最大化，兩種狀況進行分析。 研究結果顯示，透過利潤分享合約的導入可比原有各自市場利潤來得更高。亦即有合作的最佳供應鏈總體利潤，會比未合作的最佳供應鏈總體利潤來得高。由此可知，透過良好設計的供應鏈合約，可讓供應商與製造商更緊密的合作，以分享利潤與分攤風險，讓整體供應鏈獲利最大化。[[abstract]]As the importance of environmental protection is recognized worldwide it becomes mandatory to have plant wastes be managed and processed properly Through remanufacturing process by waste-water processing plant valuable metals cane be extracted recycled and sold as company’s income This recycling process is beneficial to the waste-water processing plant and metal buyer but not the electronics factory The study investigates the effect of the application of revenue sharing (RS) mechanism to the waste-water supply chain under the assumption of uncertain metal demand The three-stage waste-water supply chain is composed of single electronics factory single waste-water processing plant and single metal buyer Mathematical models based on single-period model (i e newsboy model) are developed These models are used to determine the optimal purchasing quantity the best revenue sharing percentages for each supply chain member and the selling price at each stage The profits of each supply chain member under the two scenarios (with RS without RS) are compared to see whether RS can bring benefits to the supply chain Real-case data is applied Research results indicate that RS do help every supply chain member to increase their revenues So is the supply chain total revenue This effect brings the electronics factory closer to the waste-water processing plant and the metal buyer This implies that RS not only provides economic benefits to the supply chain but also enhances supply chain relationshi