Prior research finds that online social media usage may lower self-control and encourage indulgent behavior in laboratory subjects. We find that corporate CEOs show similar tendencies: CEOs with online social media presence are more likely to succumb to lower self-control and abuse their...

We analyze the relation between insider trading and the networks of executive and non-executive directors in UK listed companies. While most existing studies focus on firm-specific private information, we find that non-firm-specific information - such as information on other companies and...

This paper investigates the patterns of directors' trades and returns around takeover announcements. We find that the pre-announcement net value (the difference between buy value and sell value) of directors' trading is positively related to acquirers' announcement period abnormal returns. This...

These slides summarize a paper on opportunism by corporate insiders. We show that opportunistic insiders can be identified through the profitability of their trades prior to quarterly earnings announcements (QEAs), and that opportunistic trading is associated with various kinds of...

Using a novel dataset containing U.S. companies’ regular board meeting schedules, we find evidence of informed trading by outside directors prior to board meetings. In the days prior to board meetings, when outside directors possess private information, they make purchases that yield higher...

Theories of corporate boards assume that board members of a firm generate private information about the quality and performance of its CEO in the process of monitoring and advising him, and may use this information to decide whether or not to fire him. In this paper, I make use of data on...

Through close interactions with their CEO and CFO, independent directors as well as subordinate executives can assess the overconfidence of their CEO and CFO. We show that independent directors and subordinate executives trade on this assessment, albeit differently. Independent directors of a...

CEOs are “lucky” when they are granted stock options on days when the stock price is lowest in the month of the grant, implying opportunistic timing and severe agency problems (Bebchuck, Grinstein, and Peyer, 2010). Using idiosyncratic volatility as our measure of stock price...