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    題名: 市場佔有率在水平結合管制之地位與應用研究
    其他題名: The study of the role and application of market share in the horizontal merger control
    作者: 陳紀元;Chen, Chi-yuan
    貢獻者: 淡江大學管理科學研究所博士班
    趙榮耀;Chao, Louis R.
    關鍵詞: 水平結合;市場佔有率;市場集中度;反托拉斯;antitrust;horizontal merger;concentration;market share
    日期: 2008
    上傳時間: 2010-01-11 03:51:19 (UTC+8)
    摘要: 競爭法主管機關對無反競爭或實質減損競爭關切之無問題案件,不須結合事業提供太多資料,而予快速審結,已成國際反托拉斯界的共識。

    在快速審結原則下,申報門檻高低與有反競爭或實質減損競爭之虞的結合案件是否合法存在,息息相關。本論文發現我國現行規範確實存在結合事業之市場集中度或市場佔有率,高者不須申報,低者卻須申報的現象。另亦發現現行之結合定義、市場界定等均存有類似的現象,有須予以調整。

    在做為快速分辨有無反競爭或實質減損競爭關切,亦即為快速審查與深入審查之指標上,本論文由我國產業之長期資料發現:兩事業之市場佔有率差距在20%以上,即相對市場佔有率小於0.8,可推論該兩事業之市場佔有率差距明顯,品牌間衝突不會發生,排名也不會變動。而此相對市場佔有率0.8配合結合事業之市場排名,在充份表達市場競爭結構,快速分辨有無反競爭或實質減損競爭關切方面,較世界各國目前使用之市場佔有率(絕對市場佔有率)或市場集中度等審查門檻指標清楚明確。

    關鍵字:水平結合、市場佔有率、市場集中度、反托拉斯。
    It has become a consensus among the anti-trust field that the competition authorizations will not request the merger business which does not have concerns of anti-competition or substantially lessening competition to provide voluminous data. These non-problematic merger cases will enjoy the treatment of fast decree.

    Under the fast decision-made requirement, whether there are legally un-notified/un-filed cases with the concerns of anti-competition or substantially lessening competition, it is closely related to the notification or filing thresholds. According to the dIssertation, the current thresholds in Taiwan do exempt the merger business of high concentration ratio or high market share from the notification/filing obligation; whereas those with low concentration or share have to notify/file. Besides, the similar scenarios are also found in merger definition and relevant market coverage.

    Empirical analysis of Taiwan markets was conducted to further understand the criteria of quick look and in-dept review. It has found when the market share difference between two businesses is larger than 20%, which means the relative market share is smaller than 0.8, it can be concluded that there is an obvious market share difference, thus there will not have conflict or ranking change between these two businesses. Using the relative market share 0.8 and the market ranking can better illustrate the competition configuration and be more quickly in determining whether there are concerns of anti-competition or substantially lessening competition. These two criteria are more explicit than the criterion of market share (absolute market share) or concentration ratio used currently.
    顯示於類別:[管理科學學系暨研究所] 學位論文

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