Taxes and executive stock options

In the Sixties, the qualified stock option was the predominant form of long-term incentive compensation contract for major industrial firms in the U.S. In the early Seventies these same firms replaced their tax-qualified stock option plans with non-qualified sttock options and later modified these plans to include a variety of new contingent compensation arrangements, some of which were based on accounting numbers instead of stock prices. This paper develops the hypothesis that tax considerations play an important role in explaining the form of compensation contracts. The pattern and timing of changes in the compensation plans of the top 100 industrial firms provides evidence consistent with the tax hypothesis.     

Repricing of executive stock options

The main purpose of this paper is to extend the model of Acharya et al. (J Financ Econ 57:65–101, 2000) to examine the ex-ante optimality of repricing of executive stock options while considering dilution effects and the tax effects of new accounting rules associated with repricing. Although there has been a body of empirical literature on repricing, the optimality of repricing after considering the economic impact of changing accounting rules has not been addressed in an ex-ante contracting setting. We find that traditional repricing loses its ex-ante dominance over the do-nothing strategy after we incorporate the tax effects of new accounting rules. The theoretical predictions of our paper shed light on this controversial practice and lay a foundation for evaluating repricing alternatives.     

Optimal exercise of executive stock options

Valuing executive stock options is a challenging problem, because the standard risk-neutral valuation of those options is not appropriate; the executive is not allowed to trade the stock of the firm, so is not operating in a complete market. As this paper shows, an executive holding many American-style call options on his firm’s stock will optimally exercise the options bit by bit, whereas a risk-neutral valuation of the options would assume that all are exercised at the same time. Comparative statics of the optimal exercise policy show many surprising features.      

Taxation and executive compensation: Evidence from stock options

Understanding the effects of taxes on executive compensation provides insight into the process determining this compensation and is a key input to top income tax rate policy. A 2010 tax reform in Canada, which greatly increased the effective tax rate on stock option compensation for a subset of firms, provides a natural experiment with which to address this issue. Difference-in-differences estimates suggest that this tax increase resulted in an immediate reduction in both stock option grants and the fraction of total compensation made up of stock options with limited, if any, substitution towards other components of compensation.     

Leverage, volatility and executive stock options

This paper studies how an optimal wage contract can be implemented using stock options, and derives the properties of the optimal contract with stock options. Specifically, we show how the exercise price and the size of the option grant should change in response to changes in exogenous parameters. First, for a fixed exercise price of executive stock options, the size of the option grant decreases in the riskiness of a desired investment policy, decreases in the volatility of return from the risky project, and increases in leverage. Second, for a fixed size of the option grant, the optimal exercise price of managerial stock options increases in the riskiness of a desired investment policy, increases in the volatility of return from the risky project, and decreases in leverage. Several empirical predictions are drawn from these conclusions regarding the pay-performance sensitivity of management compensation.     

Maturity and exercise price of executive stock options

Using a simple three-period model in which a manager can gather information before making an investment decision, this paper studies optimal contracts with various stock options. In particular, we show how the exercise price of executive stock options is related to a base salary, the size of the option grant, leverage, and the riskiness of a desired investment policy. The optimal exercise price increases in the size of grant and the base salary and decreases in leverage and the riskiness of a desired investment policy. Other things equal, the optimal exercise price of European options with a longer maturity should increase more for an increase in the base salary and the size of grant and decrease more for an increase in leverage than the one with a shorter maturity. The optimal exercise price of American options is determined by the optimal exercise prices of European options with different maturities. Given the fixed exercise price, the size of the option grant does not decrease in the face value of debt.     

Revisiting the incentive effects of executive stock options

We develop a multiperiod framework to evaluate the incentive effects of executive stock options (ESOs). For a given increase in the grant-date firm stock price (and a concurrent increase in return volatility), the increment of total value at the vesting date acts as a proxy for the incentive effects of ESOs. If the option is attached to the existing contract without adjusting cash compensation, we suggest that a firm should not always fix the strike price to the grant-date stock price; instead, the strike price should vary with the length of the vesting period. We also show that, compared with at-the-money options, restricted stock generates greater incentives to increase stock prices in some scenarios, especially when equity-based awards are vested early. If the vesting period is long, the firm could grant options instead of restricted stock to maximize incentives.     

Valuation and incentive effects of hurdle rate executive stock options

Traditional executive stock options are often criticized for inherently weak links between pay and performance. Hurdle rate executive stock options represent a viable improvement. However, valuing these options presents extraordinary analytic difficulties. With a constant dividend yield the strike price becomes a path-dependent function of the stock price and exact analytic valuation is intractable. To solve this problem, we apply the Monte Carlo valuation approach developed by Longstaff and Schwartz (Rev Financ Stud 4:113–147, 2001) to estimate the value of path-dependent American options. We also extend the methodology to incorporate the theoretical framework by Ingersoll (J Bus 79:453–487, 2006) to permit subjective valuation influenced by an executive’s risk aversion.

Market pricing of executive stock options and implied risk preferences

When managers get to trade in options received as compensation, their trading prices reveal several aspects of subjective option pricing and risk preferences. Two subjective pricing models are fitted to show that executive stock option prices incorporate a subjective discount. It depends positively on implied volatility and negatively on option moneyness. Further, risk preferences are estimated using the semiparametric model of Aït-Sahalia and Lo (2000). The results suggest that relative risk aversion is just above 1 for a certain stock price range. This level of risk aversion is low but reasonable, and it may be explained by the typical manager being wealthy and having low marginal utility. Related to risk aversion, it is found that marginal rate of substitution increases considerably in states with low stock prices.     

Risk-taking incentives of executive stock options and the asset substitution problem

Various theoretical models show that managerial compensation schemes can reduce the distortionary effects of financial leverage. There is mixed evidence as to whether highly levered firms offer less stock‐based compensation, a common prediction of such models. Both the theoretical and empirical research, however, have overlooked the leverage provided by executive stock options. In principle, adjusting the exercise prices of executive stock options can mitigate the risk incentive effects of financial leverage. We show that the near‐universal practice of setting option exercise prices near the prevailing stock price at the date of grant effectively undoes most of the effects of financial leverage. In a large cross‐sectional sample of Canadian option‐granting firms, we find evidence that executives' incentives to take equity risk are negatively rather than positively related to the leverage of their employers.     

Optimal exercise of executive stock options and implications for firm cost

This paper conducts a comprehensive study of the optimal exercise policy for an executive stock option and its implications for option cost, average life, and alternative valuation concepts. The paper is the first to provide analytical results for an executive with general concave utility. Wealthier or less risk-averse executives exercise later and create greater option cost. However, option cost can decline with volatility. We show when there exists a single exercise boundary, yet demonstrate the possibility of a split continuation region. We also show that, for constant relative risk averse utility, the option value does not converge to the Black and Scholes value as the correlation between the stock and the market portfolio converges to one. We compare our model's option cost with the modified Black and Scholes approximation typically used in practice and show that the approximation error can be large or small, positive or negative, depending on firm characteristics.     

Valuing executive stock options: performance hurdles, early exercise and stochastic volatility

Accounting standards require companies to assess the fair value of any stock options granted to executives and employees. We develop a model for accurately valuing executive and employee stock options, focusing on performance hurdles, early exercise and uncertain volatility. We apply the model in two case studies and show that properly computed fair values can be significantly lower than traditional Black–Scholes values. We then explore the implications for pay-for-performance sensitivity and the design of effective share-based incentive schemes. We find that performance hurdles can require a much greater fraction of total compensation to be a fixed salary, if pre-existing incentive levels are to be maintained.     

Should there exist secondary markets for executive stock options?

This paper investigates the potential disadvantages of the secondary markets for executive stock options (ESOs). The benefits of such markets are evident, but they might also have negative effects for shareholders. Executives might, for example, use inside information to time their ESO selling. We investigate two personal motives of managers that can be assumed to affect their optimal selling decision, that is, managers' personal portfolio management issues and the use of inside information. We explore these motives by analyzing unique data from Finland, where there are secondary markets for ESOs. The results of the study support the traditional portfolio diversification hypothesis according to which managers tend to sell their ESOs when holding an ESO is equivalent to holding the underlying stock; that is, in such a case a manager's wealth is closely tied to the stock price of the firm. With respect to the use of inside information the results indicate that ESO selling activity is not related to future stock price behaviour, suggesting that managers do not use inside information to determine the selling time of their ESOs. These results imply that the existence of secondary markets for ESOs does not weaken the usefulness of ESOs as the management compensation, although the benefits of such markets are evident.     

An empirical examination of the costs and benefits of executive stock options: Evidence from Japan

In May 1997, the Japanese Commercial Code was amended to allow firms to begin granting stock options as compensation to top management and employees. Nearly 350 firms adopted option-based compensation plans between 1997 and 2001. These options typically have five-year lives and are out-of-the-money by about 5% at the grant date. Firms exhibit abnormal stock returns of about 2% around the announcements of plan adoptions. We find improvements in operating performance and observe that dividend policy and volatility remain unchanged post-adoption. Our evidence suggests that well-designed incentive compensation plans are consistent with the creation of shareholder value.     

How employee stock options and executive equity ownership affect long-term IPO operating performance

To ascertain whether the form of managerial compensation affects a firm's long-term operating performance, we track IPOs for 5 years after the expiration of the stabilization period. New public companies perform better when managers receive a balanced combination of stock option grants and equity ownership. Firms with unbalanced compensation arrangements, large option grants and little equity ownership or vice versa do not perform as well. This empirical finding is consistent with a theoretical explanation based on managerial risk aversion and the alignment of managerial and owner incentives.     

Underperformance of founder-led firms: An examination of compensation contracting theories during the executive stock options backdating scandal

Using the executive stock option (ESO) backdating scandal as a backdrop, this paper examines whether compensation committees can effectively set executive compensation contracts in the presence of a founding CEO. Analyzing a sample of firms accused of backdating ESO grant dates and a control sample of non-backdating firms, we find evidence suggesting that managerial power influences the decision to backdate. Specifically, our analysis indicates the presence of a founder CEO increases the likelihood that ESOs are backdated by 22%. We further find that founder-led firms strongly underperform a matched sample of non-backdating firms. This finding contrasts a number of studies that document superior operating and stock return performance for founder-led firms.     

The impact of the market portfolio on the valuation,incentives and optimality of executive stock options

This paper examines the effect on valuation and incentives of allowing executives receiving options to trade on the market portfolio. We propose a continuous time utility maximization model to value stock and option compensation from the executive's perspective. The executive may invest non-option wealth in the market and riskless asset but not in the company stock itself, leaving them subject to firm-specific risk for incentive?purposes. Since the executive is risk averse, this unhedgeable firm risk leads them to place less value on the options than their cost to the company.

By distinguishing between these two types of risks, we are able to examine the effect of stock volatility, firm-specific risk and market risk on the value to the executive. In particular, options do not give incentive to increase total risk, but rather to increase the proportion of market relative to firm-specific risk, so executives prefer high beta companies. The paper also examines the relationship between risk and incentives, and finds firm-specific risk decreases incentives whilst market risk may decrease incentives depending on other parameters. The model supports the use of stock rather than options if the company can adjust cash pay when granting stock-based compensation.     

Employee stock options in compensation agreements: A financing explanation

We develop a model for the use of stock options in compensation agreements based on a financing explanation. Our model is consistent with the extensive use of options for non-executive employees. Simulation results from our model show an optimal use of options of about 9.3% of total compensation for a non-executive employee with a compensation of US$50,000. Finding an optimal level of options as part of compensation in this context requires a balancing of two opposing factors—the benefit of a lower capital issuance cost versus a higher compensation cost as a result of the discount that an employee places on options because of an undiversified position.     

Expensing stock options: a fair-value approach

Now that companies such as General Electric and Citigroup have accepted the premise that employee stock options are an expense, the debate is shifting from whether to report options on income statements to how to report them. The authors present a new accounting mechanism that maintains the rationale underlying stock option expensing while addressing critics' concerns about measurement error and the lack of reconciliation to actual experience. A procedure they call fair-value expensing adjusts and eventually reconciles cost estimates made at grant date with subsequent changes in the value of the options, and it does so in a way that eliminates forecasting and measurement errors over time. The method captures the chief characteristic of stock option compensation--that employees receive part of their compensation in the form of a contingent claim on the value they are helping to produce. The mechanism involves creating entries on both the asset and equity sides of the balance sheet. On the asset side, companies create a prepaid-compensation account equal to the estimated cost of the options granted; on the owners'-equity side, they create a paid-in capital stock-option account for the same amount. The prepaid-compensation account is then expensed through the income statement, and the stock option account is adjusted on the balance sheet to reflect changes in the estimated fair value of the granted options. The amortization of prepaid compensation is added to the change in the option grant's value to provide the total reported expense of the options grant for the year. At the end of the vesting period, the company uses the fair value of the vested option to make a final adjustment on the income statement to reconcile any difference between that fair value and the total of the amounts already reported.     

Auditors' perception of management: Determinants and consequences

An experiment was conducted to examine the determinants and consequences of auditors' perceptions of management. Based on the theory of correspondent inference (Jones & Davis, 1965), the following hypotheses were formulated: (1) auditors are most likely to make a dispositional inference about management when a transaction deviates from expectations and is made under conditions of high choice; (2) auditors are more likely to make a dispositional inference about the management of a new client than that of a continuing client; and (3) dispositional inferences about management will affect auditors' subsequent judgments. The results support the first hypothesis. Contrary to the second hypothesis, subjects' dispositional inferences about management did not differ significantly between the continuing client and the new client conditions. Finally, the materiality threshold of auditors was found to be significantly associated with their inferences about management.