The costs associated with compiling data on employee stock option portfolios is a substantial obstacle in investigating the impact of stock options on managerial incentives, accounting choice, financing decisions, and the valuation of equity. We present an accurate method of estimating option portfolio value and the sensitivities of option portfolio value to stock price and stock-return volatility that is easily implemented using data from only the current year's proxy statement or annual report. This method can be applied to either executive stock option portfolios or to firm-wide option plans. In broad samples of actual and simulated CEO option portfolios, we show that these proxies capture more than 99% of the variation in option portfolio value and sensitivities. Sensitivity analysis indicates that the degree of bias in these proxies varies with option portfolio characteristics, and is most severe in samples of CEOs with a large proportion of out-of-the-money options. However, the proxies' explanatory power remains above 95% in all subsamples. Disciplines Accounting ESTIMATING THE VALUE OF EMPLOYEE STOCK OPTION PORTFOLIOS AND THEIR SENSITIVITIES TO PRICE AND VOLATILITY ABSTRACTThe costs associated with compiling data on employee stock option portfolios is a substantial obstacle in investigating the impact of stock options on managerial incentives, accounting choice, financing decisions, and the valuation of equity. We present an accurate method of estimating option portfolio value and the sensitivities of option portfolio value to stock price and stock-return volatility that is easily implemented using data from only the current year's proxy statement or annual report This method can be applied to either executive stock option portfolios or to ftnn-wide option plans. In broad samples of actual and simulated CEO option portfolios, we show that these proxies capture more than 99% of the variation in option portfolio value and sensitivities. Sensitivity analysis indicates that the degree of bias in these proxies varies with option portfolio characteristics, and is most severe in samples of CEOs with a large proportion of out-of-the-money options. However, the proxies' explanatory power remains above 95% in all subsamples.

We predict and find that firms use annual grants of options and restricted stock to CEOs to manage the optimal level of equity incentives. We model optimal equity incentive levels for CEOs, and use the residuals from this model to measure deviations between CEOs' holdings of equity incentives and optimal levels. We find that grants of new incentives from options and restricted stock are negatively related to these deviations. Overall, our evidence suggests that firms set optimal equity incentive levels and grant new equity incentives in a manner that is consistent with economic theory. The use of equity grants to manage optimal equity incentive levels John Core * , Wayne GuayThe Wharton School, University of Pennsylvania, 2400 Steinberg-Dietrich Hall, Philadelphia, PA 19104-6365, USA (Received October, 1998; final version received September 1999) AbstractWe predict and find that firms use annual grants of options and restricted stock to CEOs to manage the optimal level of equity incentives. We model optimal equity incentive levels for CEOs, and use the residuals from this model to measure deviations between CEOs' holdings of equity incentives and optimal levels. We find that grants of new incentives from options and restricted stock are negatively related to these deviations. Overall, our evidence suggests that firms set optimal equity incentive levels and grant new equity incentives in a manner that is consistent with economic theory.

We examine the press' role in monitoring and influencing executive compensation practice using more than 11,000 press articles about CEO compensation from 1994 to 2002. Negative press coverage is more strongly related to excess annual pay than to raw annual pay, suggesting a sophisticated approach by the media in selecting CEOs to cover. However, negative coverage is also greater for CEOs with more option exercises, suggesting the press engages in some degree of "sensationalism. " We find little evidence that firms respond to negative press coverage by decreasing excess CEO compensation or increasing CEO turnover. AbstractWe examine the press' role in monitoring and influencing executive compensation practice using more than 11,000 press articles about CEO compensation from 1994 to 2002. Negative press coverage is more strongly related to excess annual pay than to raw annual pay, suggesting a sophisticated approach by the media in selecting CEOs to cover. However, negative coverage is also greater for CEOs with more option exercises, suggesting the press engages in some degree of "sensationalism." We find little evidence that firms respond to negative press coverage by decreasing excess CEO compensation or increasing CEO turnover. Tel: 215-898-7775; fax: 215-573-2054; email: guay@wharton.upenn.edu. We thank Greg Miller, seminar participants at Stanford University, and an anonymous referee for their helpful comments. We also thank Jihae Wee for excellent research support, and appreciate financial support from the

We investigate Gompers, Ishii, and Metrick's (2003) finding that firms with weak shareholder rights exhibit significant stock market underperformance. If the relation between poor governance and poor returns is causal, we expect that the market is negatively surprised by the poor operating performance of weak governance firms. We find that firms with weak shareholder rights exhibit significant operating underperformance. However, analysts' forecast errors and earnings announcement returns show no evidence that this underperformance surprises the market. Our results are robust to controls for takeover activity. Overall, our results do not support the hypothesis that weak governance causes poor stock returns. Disciplines

We examine determinants of non-executive employee stock option holdings, grants, and exercises for 756 firms during 1994-1997. We find that firms use greater stock option compensation when facing capital requirements and financing constraints. Our results are also consistent with firms using options to attract and retain certain types of employees as well as to create incentives to increase firm value. After controlling for economic determinants and stock returns, option exercises are greater (less) when the firm's stock price hits 52-week highs (lows), which confirms in a broad sample the psychological bias documented by Heath et al. ABSTRACTWe examine determinants of non-executive employee stock options outstanding, grants, and exercises for 756 firms during 1994 to 1997. We find that firms use greater stock option compensation when facing capital requirements and financing constraints. Our results are also consistent with firms using options to attract certain types of employees, provide retention incentives, and create incentives to increase firm value. After controlling for economic determinants and stock returns, option exercises are greater (less) when the firm's stock price hits 52-week highs (lows), which confirms in a broad sample the psychological bias documented by Heath, Huddart, and Lang (1999).