From 1988 to 2003, the average change in managerial ownership is significantly negative every year for American firms. We find that managers are more likely to significantly decrease their ownership when their firms are performing well, but not more likely to increase their ownership when their firms have poor performance. Because investors learn about the total change in managerial ownership with a lag, changes in Tobin's q in a period can be affected by changes in managerial ownership in the previous period. In an efficient market, it is unlikely that changes in managerial ownership in one period are caused by future changes in q. When controlling for past stock returns, we find that large increases in managerial ownership increase q. This result is driven by increases in shares held by officers, while increases in shares held by directors appear unrelated to changes in firm value. There is no evidence that large decreases in ownership have an adverse impact on firm value. We argue that our evidence cannot be wholly explained by existing theories and propose a managerial discretion theory of ownership consistent with our evidence.
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Paper provided by Center for Economic Institutions, Institute of Economic Research, Hitotsubashi University in its series CEI Working Paper Series with number
2008-1.
References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
Rafael La Porta & Florencio Lopez-De-Silanes & Andrei Shleifer, 1999.
"Corporate Ownership Around the World,"
Journal of Finance,
American Finance Association, vol. 54(2), pages 471-517, 04.
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Alex Edmans & Xavier Gabaix & Tomasz Sadzik & Yuliy Sannikov, 2009.
"Dynamic Incentive Accounts,"
NBER Working Papers
15324, National Bureau of Economic Research, Inc.
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