We investigate stock option exercise decisions by over 50,000 employees at seven corporations. Controlling for economic factors, psychological factors in*uence exer- cise. Consistent with psychological models of beliefs, employees exercise in response to stock price trends|exercise is positively...

We provide large sample evidence that past price extremes influence investors' trading decisions. Volume is strikingly higher, in both economic and statistical terms, when the stock price crosses either the upper or lower limit of its past trading range. This increase in volume is more...

We propose that idiosyncratic benefits from adhering to social norms explain the heterogeneity in honesty documented in many situations where misrepresentation yields a financial benefit. Further, information about the honesty of one's peers modifies the descriptive norm and hence, one's own...

We examine whether taxes affect stock sales by mutual funds. For certain funds, the expected amount of a given stock sold in a given quarter is 62% greater when liquidation would trigger a capital loss equal to 1% of the value of the portfolio than when a like-size gain would be triggered, a...

Research in sociology and ethics suggests that individuals adhere to social norms of behavior established by their peers. Within an agency framework, we model endogenous social norms by assuming each agent's cost of implementing an action depends on the social norm for that action, defined to be...

We investigate the relationship of candidate information asymmetry measures to aspects of insiders' trades. For two of the measures, the median absolute abnormal return over past earnings announcements (MAG_AR) and whether the firm reports Ramp;D expenditures, associations are consistent with...

Evidence contrasting U.S. insider trades in high- and low-jeopardy periods and across firms at high and low risk for 10b-5 litigation indicates that insiders condition their trades on foreknowledge of price-relevant public disclosures, but avoid profitable trades when the jeopardy associated...

This paper provides evidence that insiders possess, and trade upon, knowledge of specific and economically-significant forthcoming accounting disclosures as long as two years prior to the disclosure. Stock sales by insiders increase three to nine quarters prior to a break in a string of...

Among the reactions to recent corporate scandals are calls for greater transparency of insiders' trades. The Securities and Exchange Commission's recent rule on fair disclosure is accompanied by a safe harbor from prosecution under insider trading laws for insiders who pre-commit to trades. A...

Research in sociology and ethics suggests that individuals adhere to social norms of behavior established by their peers. Within an agency framework, we model endogenous social norms by assuming each agent's cost of implementing an action depends on the social norm for that action, defined to be...