Theoretical foundations of market power analysis in merger regulation
Project/Area Number |
24530057
|
Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Social law
|
Research Institution | Kyoto University |
Principal Investigator |
KAWAHAMA NOBORU 京都大学, 法学(政治学)研究科(研究院), 教授 (60204749)
|
Project Period (FY) |
2012-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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Keywords | 企業結合 / 市場支配力 / ユニラテラル効果 / 競争の実質的制限 / 市場画定 / 支配企業 / 独占禁止法 / 企業結合規制 / 単独効果 / UPPI / 市場支配力分析 / ドミナンス基準 / 入札型競争 / 集中度 / 法と経済学 / 問題解消措置 / 参入障壁 |
Outline of Final Research Achievements |
JFTC 2004 Merger Guidelines introduced unilateral effects analysis . Unilateral merger effects analysis are divided into two parts,(1)homogeneous product markets and (2) differentiated product markets. Commentators usually think that unilateral effects arise in one-shot oligopoly games with Nash equilibria. In the case of homogenous product market ,they refer to Cournot competition model. In the case of differentiated product market ,they refer to Bertrand competition model. But we found that competition authorities seem to use usually dominant-fringe model in homogeneous product markets and rarely use Cournot competition model. In the case of differentiated product markets, not all cases are Bertrand competition model. Some cases correspond to Cournot competition or capacity constrain model and other cases correspond to auction model . Merger investigation is fact-specific process . We must make a choice among several models on the basis of reasonably available data.
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Report
(5 results)
Research Products
(8 results)