自工業革命後經濟快速成長製造業也隨之興起，在快速的發展下人們大量開採能源進行生產，伴隨著製造與使用後產生的廢棄物，讓環境與氣候產生了變化，人們開始意識到環境問題，市場中消費者逐漸產生環保意識，各國政府與國際組織開始正視環境議題並於1990年提出生產者延伸責任，即生產者必須承擔其產品對環境所造成的影響責任，盡量降低產品生命週期對環境所造成的危害，其最終目標為達到循環經濟讓資源在供應鏈中不斷循環，以形成閉環式供應鏈。
本研究主要探討一獨占原始設備商(Original Equipment Manufacturer, OEM)，在面對政府針對生產者延伸責任所制定之法規與具有異質性消費者的市場下對其產品進行回收與再製形成混合再製造系統，且OEM可透過產品綠色設計降低產品再製時的成本與環境損害，但OEM面臨的挑戰是在產品綠色設計的投資成本與降低再製成本間權衡，故本研究針對政府立法與否與製造商是否考量產品綠色設計所構成的四個不同情境中，在最大化OEM利潤下比較不同情境下之生產決策，並加入史塔克堡競局，其中政府為模型領導者，OEM為模型追隨者，政府在最大化社會福利下求得立法決策。透過本研究探討政府法規對製造商生產決策之影響、為製造商在混合再製造系統中找出最佳生產決策與探討生產者延伸責任對於製造商產品綠色設計與社會福利之影響並給予政府立法上的相關建議，結果顯示，在合理範圍內較嚴格之法規，將使得製造商減少新品產量，增加回收品數量與再製品產量且提高產品綠色程度以易於再製，且當政府選擇立法與製造商考量產品綠色設計時能獲得最大社會福利，但在法規下製造商是否考量產品綠色設計受到產品綠色投資成本係數所影響，如投資成本係數過大則造成製造商利潤大幅減少，進而不考量產品綠色設計，因此投資成本係數為政府與製造商首要面對之課題。

Since the industrial revolution, the economy has grown rapidly and the manufacturing industry has also emerged. With the waste generated after manufacturing and use, the environment and climate have changed. People began to realize environmental problems. Governments and international organizations began to face up to environmental issues and proposed extended producer responsibility in 1990, that is, manufacturers have to take responsibility for the impact of their products on the environment.
This study mainly investigates a monopolistic original equipment manufacturer (OEM), in the face of the government's regulations on extended producer responsibility and a heterogeneous consumer market, its products are collected and remanufactured to form hybrid remanufacturing system. Moreover, OEM can reduce the cost and environmental damage of product remanufacturing through the eco-design of product, but the challenges OEMs face is to balance the investment cost of product eco-design and the reduction of remanufacturing costs. This study investigates the impact that government regulations have on production strategy of the manufacturer, obtains the optimal production decisions for manufacturers in hybrid remanufacturing systems, and the impacts that extended producer responsibility have on green product design (eco -design) and social welfare of the manufacturer, and provide relevant advice on the legislations of the government. The results found that, within a reasonable range, stricter regulations will enable manufacturers to reduce the production of new products, increase the quantity of collected products and the production of remanufactured products, and improve the green level of the product for easy remanufacturing. When the government chooses legislation and manufacturers consider the green design of products, they can obtain the greatest social welfare, but whether the manufacturer considers the eco-design of products under the regulations is affected by the coefficient of DfE cost of the product. If the coefficient is too large, the manufacturer's profit will be greatly reduced. Manufacturer does not consider the eco-design of the product, so the coefficient of DfE cost is the primary issue faced by the government and the manufacturer.

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