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Columbia Law School

Business Organizations Law

Insider Trading

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Full-Text Articles in Law

Activist Directors And Agency Costs: What Happens When An Activist Director Goes On The Board?, John C. Coffee Jr., Robert J. Jackson Jr., Joshua Mitts, Robert Bishop Jan 2019

Activist Directors And Agency Costs: What Happens When An Activist Director Goes On The Board?, John C. Coffee Jr., Robert J. Jackson Jr., Joshua Mitts, Robert Bishop

Faculty Scholarship

We develop and apply a new and more rigorous methodology by which to measure and understand both insider trading and the agency costs of hedge fund activism. We use quantitative data to show a systematic relationship between the appointment of a hedge fund nominated director to a corporate board and an increase in informed trading in that corporation’s stock (with the relationship being most pronounced when the fund’s slate of directors includes a hedge fund employee). This finding is important from two different perspectives. First, from a governance perspective, activist hedge funds represent a new and potent force in corporate …


Informed Trading And Cybersecurity Breaches, Joshua Mitts, Eric L. Talley Jan 2019

Informed Trading And Cybersecurity Breaches, Joshua Mitts, Eric L. Talley

Faculty Scholarship

Cybersecurity has become a significant concern in corporate and commercial settings, and for good reason: a threatened or realized cybersecurity breach can materially affect firm value for capital investors. This paper explores whether market arbitrageurs appear systematically to exploit advance knowledge of such vulnerabilities. We make use of a novel data set tracking cybersecurity breach announcements among public companies to study trading patterns in the derivatives market preceding the announcement of a breach. Using a matched sample of unaffected control firms, we find significant trading abnormalities for hacked targets, measured in terms of both open interest and volume. Our results …


The Agency Costs Of Activism: Information Leakage, Thwarted Majorities, And The Public Morality, John C. Coffee Jr. Jan 2017

The Agency Costs Of Activism: Information Leakage, Thwarted Majorities, And The Public Morality, John C. Coffee Jr.

Faculty Scholarship

Few doubt that hedge fund activism has radically changed corporate governance in the United States – for better or for worse. Proponents see activists as desirable agents of change who intentionally invest in underperforming companies to organize more passive shareholders to support their proposals to change the target’s business model and/or management. So viewed, the process is fundamentally democratic, with institutional shareholders determining whether or not to support the activist’s proposals.

Skeptics respond that things do not work this simply. Actual proxy contests are few, and most activist engagements are resolved through private settlement negotiations between the activists, who rarely …


Irredeemably Inefficient Acts: A Threat To Markets, Firms, And The Fisc, Alex Raskolnikov Jan 2014

Irredeemably Inefficient Acts: A Threat To Markets, Firms, And The Fisc, Alex Raskolnikov

Faculty Scholarship

This Article defines and explores irredeemably inefficient acts – a conceptually distinct and empirically important category of socially undesirable conduct. Though inefficient behavior is, no doubt, pervasive, the standard view holds that inefficient conduct may be converted into efficient behavior by forcing actors to internalize the external harms of their decisions. For some acts, however such conversion is impossible. These acts are not just inefficient forms of otherwise socially beneficial activities – they are not just contingently inefficient. Rather, they are inefficient at their core; they reduce social welfare no matter what the regulator does. These irredeemably inefficient (or just …