Publications
Publications
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- Faculty Publications (17)
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17
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- September 2017
- Article
Reexamining Staggered Boards and Shareholder Value
By: Charles C.Y. Wang and Alma Cohen
Cohen and Wang (2013) (CW2013) provide evidence consistent with market participants perceiving staggered boards to be value reducing. Amihud and Stoyanov (2016) (AS2016) contests these findings, reporting some specifications under which the results are not...
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- 2015
- Working Paper
Staggered Boards and Shareholder Value: A Reply to Amihud and Stoyanov
By: Alma Cohen and Charles C.Y. Wang
In a paper published in the Journal of Financial Economics in 2013, we provided evidence that market participants perceive staggered boards to be on average value-reducing. In a recent response paper, Amihud and Stoyanov (2015) “contest” our results. They...
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- January 2016 (Revised January 2019)
- Case
The Allergan Board Under Fire (A)
By: Lynn S. Paine, Suraj Srinivasan, John C. Coates and David Lane
In 2014, the Allergan Inc. board of directors received a surprise takeover offer from Valeant Pharmaceuticals in alliance with hedge fund activist Bill Ackman's Pershing Square Capital Management. In the unprecedented arrangement between an acquirer and a hedge fund...
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Keywords:
Allergan, Inc.;
Valeant;
Ackman;
Pershing Square;
Tender Offer;
Activist Investors;
Business Models;
R＆D;
Board Of Directors;
Securities Litigation;
Acquisition Strategy;
Takeover Defenses;
Hedge Funds;
Shareholder Rights;
Proxy Contest;
Shareholder Special Meetings;
Legal Issues In Contested Takeovers;
Governing and Advisory Boards;
Mergers and Acquisitions;
Corporate Governance;
Management Teams;
Business and Shareholder Relations;
Pharmaceutical Industry
- January 2016 (Revised January 2019)
- Supplement
The Allergan Board Under Fire (B)
By: Lynn S. Paine, Suraj Srinivasan, John C. Coates and David Lane
In 2014, the Allergan Inc. board of directors received a surprise takeover offer from Valeant Pharmaceuticals in alliance with hedge fund activist Bill Ackman's Pershing Square Capital Management. In the unprecedented arrangement between an acquirer and a hedge fund...
View Details
Keywords:
Allergan, Inc.;
Valeant;
Ackman;
Pershing Square;
Tender Offer;
Activist Investors;
Business Models;
R＆D;
Board Of Directors;
Securities Litigation;
Acquisition Strategy;
Takeover Defenses;
Hedge Funds;
Shareholder Rights;
Proxy Contest;
Shareholder Special Meetings;
Legal Issues In Contested Takeovers;
Corporate Governance;
Investment Activism;
Business and Stakeholder Relations;
Business Model;
Business and Shareholder Relations;
Valuation;
Pharmaceutical Industry
- July 2015
- Exercise
An Activist Approach: Castle Rock-Fultons-Remingtons
By: Guhan Subramanian and Kait Szydlowski
A three party, multiple-issue negotiation exercise dealing with a potential merger between two leading department stores, called for by an activist investor hedge fund in a letter to both companies. Company management will now attempt to navigate next moves, which are...
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- July 2015
- Exercise
An Activist Approach: Confidential Role Assignment for Castle Rock Management
By: Guhan Subramanian and Kait Szydlowski
A three party, multiple-issue negotiation exercise dealing with a potential merger between two leading department stores, called for by an activist investor hedge fund in a letter to both companies. Company management will now attempt to navigate next moves, which are...
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- July 2015
- Exercise
An Activist Approach: Confidential Role Assignment for Fultons Department Stores
By: Guhan Subramanian and Kait Szydlowski
A three party, multiple-issue negotiation exercise dealing with a potential merger between two leading department stores, called for by an activist investor hedge fund in a letter to both companies. Company management will now attempt to navigate next moves, which are...
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- July 2015
- Exercise
An Activist Approach: Confidential Role Assignment for Remingtons Housewares
By: Guhan Subramanian and Kait Szydlowski
A three party, multiple-issue negotiation exercise dealing with a potential merger between two leading department stores, called for by an activist investor hedge fund in a letter to both companies. Company management will now attempt to navigate next moves, which are...
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- December 2013
- Article
How Do Staggered Boards Affect Shareholder Value? Evidence from a Natural Experiment
By: Alma Cohen and Charles C.Y. Wang
The well-established negative correlation between staggered boards (SBs) and firm value could be due to SBs leading to lower value or a reflection of low-value firms' greater propensity to maintain SBs. We analyze the causal question using a natural experiment...
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- October 2007 (Revised December 2008)
- Background Note
Evaluating M&A Deals: How Poison Pills Work
The poison pill defense against hostile takeovers was invented in 1982 by Martin Lipton, of Wachtell, Lipton, Rosen and Katz. Pills are considered the most effective of all the normal defenses against a hostile bidder. Describes the two basic types of poison pills...
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- fall 2005
- Article
Takeover Defenses and Bargaining Power
- December 2003 (Revised August 2004)
- Case
Circon (A) (Abridged)
By: Brian J. Hall, Christopher Rose and Guhan Subramanian
In 1996, U.S. Surgical launched a hostile takeover bid against Circon Corp. CEO Richard Auhll recruited an old HBS friend, George Cloutier, to the Circon board to help him defend the company. Circon's primary defenses include a "poison pill" and a staggered board and...
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- December 2003
- Article
Bargaining in the Shadow of Takeover Defenses
- March 2001 (Revised December 2003)
- Case
Circon (A)
By: Brian J. Hall, Guhan Subramanian and Christopher A Rose
In 1996, U.S. Surgical launched a hostile takeover bid against Circon Corp. After building the company for 20 years, CEO Richard Auhll takes a defensive stand that includes inviting an old HBS friend (George Cloutier) to join the fight as a director of Circon. A...
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- July 1999 (Revised April 2001)
- Case
Quickturn Design Systems, Inc. (A)
By: Jay W. Lorsch and Katharina Pick
Quickturn Design Systems, Inc. faces a hostile takeover bid from its competitor, Mentor Graphics. Mentor makes the bid at a moment when Quickturn's stock price is depressed and the company is defending against a patent suit filed by Mentor. The two companies have a...
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