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  • 學位論文

高階經理人撤換對內部人交易之影響

The Impact of CEO Turnover on Insider Trading

指導教授 : 陳聖賢

摘要


本文探討高階經理人撤換與內部人交易之關係。由1987年到2006年的高階經理人撤換資料,我們發現在高階經理人撤換期間前後,內部人交易有異常之情形。在高階經理人撤換之前,內部人會賣出他們的持股;在經理人撤換之後,他們會買回股票。這樣的情況和公司內外部的資訊不對稱有關,公司內部人擁有較多的訊息。公司內部不同階層的員工、舊的高階經理人離開原因與新的高階經理人的任命,都會影響這段期間的內部人交易。在強制撤換經理人,與任命公司外部人士擔任高階經理人的公司,經理人撤換期間會有比較大量的內部人交易。越高層級的經理人,他們本身的交易情況就更明顯。另一方面,我們也發現可以利用高階經理人撤換前的內部人交易情形來預測公司在經理人撤換後的整體表現。因此,本文驗證了高階經理人撤換與內部人交易之間的關係。

並列摘要


This article examines the relation between CEO turnover and insider trading. Using 1894 CEO changes from 1987 to 2006, we find that there are abnormal insider transactions around CEO turnover. Insiders sell shares before CEO turnover and buy shares after the turnover. Different insider group, departure type, and succession type of the turnover influence insider trading around CEO turnover. Forced departure and outside succession turnovers have much insider trading around the replacements. Senior executives also have more incentive to do insider trading. We also find pre-turnover insider trading can be a predictor of firm post-turnover performance.

並列關鍵字

CEO turnover Insider trading

參考文獻


1. Aboody, D. and B. Lev, 2000. Information asymmetry, R&D, and Insider Gains. Journal of Finance 55, 2747-2766.
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5. Clarke, J., C. Dundar, and K. M. Kahle, 2004. The long-run performance of secondary equity issues: A test of the windows of opportunities. Journal of Business 77, 575-603.

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