頁籤選單縮合
題 名 | HHI與事業結合申請案=HHI and Competition Analysis of Firm Consolidations |
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作 者 | 梁國源; 陳尚賢; | 書刊名 | 公平交易季刊 |
卷 期 | 8:1 2000.01[民89.01] |
頁 次 | 頁127-144 |
分類號 | 555.77 |
關鍵詞 | 事業結合申請案; 公平交易法; HHI; |
語 文 | 中文(Chinese) |
中文摘要 | 本文探討HHI與事業結合申請案有闊的五項議題。首先,介紹一個合宜的集中度測度式應具有的準則,並指出由HHI符合此等準則的要求。其次,以HHI的數學定義式,說明該指數可拆解為產業規模不均等式與產業中廠商個數等兩項因素,並討論產業規模分配及廠商數量對HHI的影響。第三,示範在特定的參數值下,可根據統計訊息理論推得與HHI有關的不均等測量式。第四,立基於廠商的利潤極大化問題,得出不同猜測變量的寡占理論設定下,HHI與市場力的關聯,以及以HHI解釋合併前後福利水準變動時應注意的事項。第五,討論與HHI相關的法規要求,及依美國資料得出的實證結果。作者期望本文能對主管機關在結合申請案件的審核研析上,發揮若干助力。 |
英文摘要 | This paper investigates five issues regarding the application of HHI to the competition analysis of firm consolidations. First, an introduction is presented on the criteria for a reasonable measure of industry concentration ratio, and how HHI meets these requirements. Second, through a mathematical definition of HHI, the article explains the index can be split into two terms: (1) inequality of market share, (2) number of firms, and discusses the influences they have on HHI. Third, a special case of a general inequality measure derived from the statistical decision theory is shown to be associated with HHI. Fourth, based on the firm's profit maximization objective, various conjectural variations of the oligopoly theory display the relationship between HHI and the market power. The paper also illuminates the aspects of what analysts should pay attention to when comparing the pre-and-post consolidation welfare changes from the HHI perspective. Fifth, the article discusses the HHI-related competition law enforcement issues and the empirical results obtained from U.S. data. The authors hope the article can be of use to the competition authority when considering competitive concerns in this analysis and filing actions to approve or prevent firm consolidations. |
本系統中英文摘要資訊取自各篇刊載內容。