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    題名: 寡占競爭與最適技術授權
    其他題名: Optimal licensing in a Cournot duopoly model
    作者: 鄭光哲;Cheng, Kuang-che
    貢獻者: 淡江大學經濟學系碩士班
    鄭東光;Cheng, Tun-kung
    關鍵詞: Cournot競爭;研發;最適專利授權;Cournot Competition;R&D;Optimal Patent Licensing
    日期: 2007
    上傳時間: 2010-01-11 02:13:01 (UTC+8)
    摘要:   本文利用成本差異、Cournot競爭的架構,分別從權利金收益及社會福利的角度,探討降幅型研發與非降幅型研發下,產業外研發單位的最適授權機制。可能的授權方式有三:次高價格密價拍賣、固定權利金與單位權利金。
      本文發現,如果產業外研發單位以權利金收益為考量,最適授權方式難以從一而論;基本上要依成本的降幅、授權前成本差異的程度而定。非降幅型研發若能改善所有廠商的成本,則最適授權方式為次高價格密價拍賣,但若只能改善技術劣勢廠商的位成本,則最適授權方式為固定權利金。
      如果以社會福利為考量,不論是降幅型或非降幅型研發,只要能改善所有廠商的成本,最適授權方式都是固定權利金;但若非降幅型研發只能改善技術劣勢廠商的成本,則最適授權方式為單位權利金。
    This article studies the optimal licensing mechanism of an outside patent-holder from a point of view of the patent-holder’s profit or social welfare, in a cost differentiated、Cournot duopoly model. We consider two types of cost reducing innovation: “cost-cut” and “non cost-cut”; and three types of patent licensing: second-price sealed-bid auction, fixed-fee franchising or royalty.
    With the view of maximizing the patent-holder’s profit, it is found that the optimal licensing policy of cost-cut innovation varies with the degree of cost differentiation and the extent of cost-cut. The optimal licensing policy of non cost-cut innovation improving all firms’ cost is second-price sealed-bid auction, but the optimal licensing policy is fixed-fee if the non cost-cut innovation can only improve the cost of the less efficient firm.
    To maximize social welfare, the optimal licensing policy is fixed-fee if the innovation can improve all firms’ cost no matter whether it is cost-cut or non cost-cut innovation. However the optimal licensing policy is royalty if the non cost-cut innovation improves only the cost of the less efficient firm.
    顯示於類別:[經濟學系暨研究所] 學位論文

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