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The Limitations of Stock Market Efficiency: Price Informativeness and CEO TurnoverLixin HuangGeorgia State University Qiang KangFlorida International University (FIU) - Department of Finance Gary B. GortonYale School of Management; National Bureau of Economic Research (NBER) February 28, 2013 Abstract: There is a tenuous link between market efficiency and economic efficiency in that stock prices are more informative when the information has less social value. We theoretically and empirically investigate this link in the context of CEO turnover. Our theoretical model predicts that, although the board of directors relies on the stock market information to make CEO turnover decisions, stock price informativeness is negatively related to the board’s monitoring effort. Our empirical tests support the model predictions. In addition, using the passage of the Sarbanes-Oxley Act as a quasi-natural experiment, we find that the legislation has a negative impact on stock price informativeness.
Number of Pages in PDF File: 49 Keywords: Stock market efficiency, economic efficiency, CEO turnover, working papers seriesDate posted: April 27, 2009 ; Last revised: March 7, 2013Suggested CitationContact Information
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