Pills and Partisans: Understanding Takeover Defenses

64 Pages Posted: 3 Mar 2011 Last revised: 20 Jul 2015

See all articles by Jordan M. Barry

Jordan M. Barry

University of Southern California Gould School of Law

John William Hatfield

University of Texas at Austin

Date Written: February 23, 2011

Abstract

Corporate takeover defenses have long been a focal point of academic and popular attention. However, no consensus exists on such fundamental questions as why different corporations adopt varying levels of defenses and whether defenses benefit or harm target corporations' shareholders or society generally. Much of the disagreement surrounding takeover defenses stems from the lack of a fully developed formal analytical framework for considering their effects. Our Article presents several formal models built upon a common core of assumptions that together create such a theoretical framework. These models incorporate the reality that target corporate insiders have superior information about the target but are imperfect agents of its shareholders. They suggest that modern defenses enable target shareholders to extract value from acquirers by empowering corporate insiders, but that takeover defenses do not benefit society as a whole. They also suggest why corporations with different characteristics may choose to adopt varying levels of takeover defenses. Our findings have implications for the longstanding debate about who is best served by state-level control of corporate law and the desirability of increased federal involvement in corporate law.

Keywords: law and economics, takeovers, takeover defenses, corporate governance, imperfect information, adverse selection, agency theory, market for corporate control, poison pill, securities regulation, regulatory competition, economic federalism, directors, shareholders, managers

JEL Classification: D70, D82, G18, G30, G34, G38, H11, H70, K22

Suggested Citation

Barry, Jordan and Hatfield, John William, Pills and Partisans: Understanding Takeover Defenses (February 23, 2011). 160 University of Pennsylvania Law Review 633 (2012), Stanford Law and Economics Olin Working Paper No. 407, Rock Center for Corporate Governance at Stanford University Working Paper No. 98, Available at SSRN: https://ssrn.com/abstract=1767683

Jordan Barry (Contact Author)

University of Southern California Gould School of Law ( email )

699 Exposition Blvd.
Los Angeles, CA 90089
United States

John William Hatfield

University of Texas at Austin ( email )

Austin, TX 78712
United States

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