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"Information Revealing Effects of Anti-takeover Amendments: A case of Japan in 2005 "(in Japanese)


  • Sumio Hirose

    (Faculty of Economics, Shinshu University)

  • Tomotaka Fujita

    (Graduate Schools for Law and Politics, University of Tokyo)

  • Noriyuki Yanagawa

    (Faculty of Economics, University of Tokyo)


In 2005, Japanese firms were allowed to introduce the anti-takeover amendments. By using of the data of 2005, this paper examined the incentives and effects of anti-takeover amendments in Japan. It has shown that the performances of the ATA introduced firms dropped in 2005 fiscal year. These performances changes occurred just after the introduction of ATA. Hence we can conclude that ATAs have been introduced by the firm whose managers recognized that their performances would be decreased. By checking the stock prices of those firms by using of an event study technique, this paper found that the movements of stock prices were consistent with the changes of performances. In other words, the introduction of ATA has revealed the negative signal to the market. Moreover, this paper shows that explicit ATAs were more negatively judged than implicit ATAs from the market. The average abnormal returns of ATA introduced firms whose simple Q is lower than 1 were negative even when the estimation window is extended to 35 days.

Suggested Citation

  • Sumio Hirose & Tomotaka Fujita & Noriyuki Yanagawa, 2007. ""Information Revealing Effects of Anti-takeover Amendments: A case of Japan in 2005 "(in Japanese)," CIRJE J-Series CIRJE-J-182, CIRJE, Faculty of Economics, University of Tokyo.
  • Handle: RePEc:tky:jseres:2007cj182

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    1. Emine G├╝rgen & Thomas A. Wolf, 2000. "Improving Governance and Fighting Corruption in the Baltic and CIS Countries; The Role of the IMF," IMF Working Papers 00/1, International Monetary Fund.
    2. Weitzman Martin L. & Xu Chenggang, 1994. "Chinese Township-Village Enterprises as Vaguely Defined Cooperatives," Journal of Comparative Economics, Elsevier, vol. 18(2), pages 121-145, April.
    3. Andrei Shleifer & Robert W. Vishny, 1991. "Reversing the Soviet Economic Collapse," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 22(2), pages 341-367.
    4. Tian, Guoqiang, 2000. "Property Rights and the Nature of Chinese Collective Enterprises," Journal of Comparative Economics, Elsevier, vol. 28(2), pages 247-268, June.
    5. Ruggerone, Luigi, 1996. "Unemployment and Inflationary Finance Dynamics at the Early Stages of Transition," Economic Journal, Royal Economic Society, vol. 106(435), pages 483-494, March.
    6. repec:hrv:faseco:30723290 is not listed on IDEAS
    7. Shang-Jin Wei, 1997. "Gradualism versus Big Bang: Speed and Sustainability of Reforms," Canadian Journal of Economics, Canadian Economics Association, vol. 30(4), pages 1234-1247, November.
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