Publications

November 2009
Article

Responding to Public and Private Politics: Corporate Disclosure of Climate Change Strategies

By: Erin Marie Reid and Michael W. Toffel

The challenges associated with climate change will require governments, citizens, and firms to work collaboratively to reduce greenhouse gas emissions, a task that requires information on companies' emissions levels, risks, and reduction opportunities. This paper... View Details

Keywords: Climate Change; Problems and Challenges; Pollutants; Risk and Uncertainty; Business and Shareholder Relations; Management Practices and Processes; Social Issues; Corporate Disclosure; Values and Beliefs; Governing Rules, Regulations, and Reforms; Government and Politics

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August 2018 (Revised April 2021)
Case

The Fuji-Xerox Merger

By: Guhan Subramanian and Annie Zhao

In January 2018, Xerox, a well-known American digital document firm, convened its board of directors to decide whether to approve a merger with Japanese imaging company Fujifilm. Activist Xerox shareholders were suing to halt the transaction, and documents unearthed... View Details

Keywords: Mergers and Acquisitions; Negotiation Deal; Negotiation Process; Corporate Governance; Law

January 2018
Case

Trian Partners' Proxy Contest at Procter & Gamble

By: Suraj Srinivasan and Quinn Pitcher

In July 2017, activist hedge fund Trian Partners announced that it was launching a proxy fight at U.S. consumer goods giant Procter & Gamble. P&G would be the largest company ever subjected to a proxy fight, as Trian sought to have its CEO, Nelson Peltz, elected to the... View Details

Keywords: Investment; Corporate Governance; Institutional Investing; Investment Activism; Business and Shareholder Relations; United States

September 2015 (Revised September 2017)
Case

Pershing Square 2.0

By: Robin Greenwood, Samuel Hanson and David Biery

In June 2015 William A. Ackman, the CEO and founder of New York hedge fund Pershing Square Capital, reflects on the success of the fund he has spent over a decade building. Since its inception in 2004, Pershing Square's assets under management had grown from $500... View Details

Keywords: Activism; Value Investing; Portfolio Management; Management; Investment Portfolio; Investment Activism

November 2007 (Revised March 2009)
Case

Clear Channel 2006

By: Richard S. Ruback and Leslie Pierson

The Board of Directors of Clear Channel Communications, a radio broadcasting and outdoor advertising company, has to respond to a revised proposal from two private equity firms to take the company private. In November of 2006, the Board had unanimously approved an... View Details

Keywords: Decision Choices and Conditions; Private Equity; Governing and Advisory Boards; Negotiation Offer; Privatization; Business and Shareholder Relations

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October 2018
Case

The Proxy Fight at ADP

By: Robin Greenwood and E. Scott Mayfield

In July 2017, shares of Automatic Data Processing, Inc. (ADP) surged 12% following a report that the activist investor Bill Ackman had acquired a sizable stake in the company and planned to nominate his own slate of directors at the company’s annual meeting in... View Details

04 May 2017
News

The Error at the Heart of Corporate Leadership

June 2015 (Revised August 2016)
Case

Qualcomm Inc., 2009-2015

By: David B. Yoffie

In the years after 2009, Qualcomm navigated the wireless industry's transition from 3G to 4G, retaining its technological leadership and experiencing dramatic growth in revenue and profit. In March 2014, Qualcomm appointed a new CEO, Steve Mollenkopf, who had to... View Details

Keywords: Communication Technologies; Technology; Wireless Technologies; Mobile and Wireless Technology; Strategy; Communication Technology; Competitive Strategy; Change Management; Electronics Industry; Telecommunications Industry; California

Research Summary

Executive Compensation

By: Tatiana Sandino

Professor Sandino’s other stream of research examines players that influence the design of an executive’s compensation. She has examined the role shareholder activists can play in influencing CEO pay and found that a compensation-related shareholder proposal could... View Details

October 2002 (Revised January 2003)
Case

Hermitage Fund, The: Media and Corporate Governance in Russia

William Browder, the top executive of the Hermitage Fund, the best-performing international equity fund over the last five years, attributed much of his funds' strong returns to its focus on shareholder activism and corporate governance. In 2001, he was putting this... View Details

Keywords: Media; Corporate Governance; Investment Activism; Financial Services Industry; Russia

09 Jun 2009
First Look

First Look: June 9

a task that requires information on companies' emissions levels, risks, and reduction opportunities. This paper explores the conditions under which firms participate in this endeavor. Building on theories of how social activists inspire... View Details

Keywords: Martha Lagace

April 2025 (Revised June 2025)
Case

Governing Sustainability in a Shifting Context (A)

By: Lynn S. Paine and Will Hurwitz

In early 2025, boards of directors had to rethink corporate responsibility and sustainability efforts amid rapidly-shifting social, legal, regulatory, and economic forces. While just a few years earlier, calls to address racial justice and climate change reached into... View Details

2022
Article

Pills in a World of Activism and ESG

By: Guhan Subramanian and Caley Petrucci

Easterbrook and Fischel’s The Economic Structure of Corporate Law advances their now famous passivity thesis, which posits that managers should remain passive in the face of an unsolicited tender offer for the company’s shares. Consistent with the broader... View Details

Keywords: Investment Activism; Governance Controls; Business and Shareholder Relations

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09 Aug 2017
News

Non-Executive Directors Need To Align With Managers -- Without Losing Their Independence

11 Oct 2017
Research & Ideas

The House Wants to Squelch Voices of ‘Small’ Shareholders. Research Shows Those Voices Matter.

proposals that are actually viewed as legitimate by the majority of the firm’s shareholders. For example, in 2011, activist investor Ken Steiner issued a proposal to allow Allstate Corp. shareholders to act... View Details

Keywords: by Carmen Nobel

Case: The Allergan Board Under Fire (A)

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... View Details

03 Mar 2015
News

Corporate Governance 2.0

November 2020 (Revised February 2021)
Case

Wes Hall and the BlackNorth Initiative

By: Shikhar Ghosh, Marilyn Morgan Westner and Reza Satchu

Wes Hall founded Kingsdale Advisors and built it into one of Canada’s leading shareholder services and advisory firms. Influenced by the Black Lives Matter (BLM) movement and a series of social injustices—specifically the death of George Floyd in police custody—Hall... View Details

Keywords: Racism; Cultural Entrepreneurship; Social Entrepreneurship; Diversity; Race; Social Issues; Ethics; Canada; North America