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- All HBS Web
(3,462)
- People (8)
- News (1,019)
- Research (1,924)
- Events (2)
- Multimedia (9)
- Faculty Publications (797)
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- 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
Paine, Lynn S., Suraj Srinivasan, John C. Coates, and David Lane. "The Allergan Board Under Fire (B)." Harvard Business School Supplement 316-029, January 2016. (Revised January 2019.)
- 08 Aug 2016
- Working Paper Summaries
The Unintended Consequences of the Zero Lower Bound Policy
- March 2015 (Revised November 2017)
- Case
Bonitas
By: Regina E. Herzlinger and Natalie Kindred
Bonitas, a South African medical scheme (i.e., health insurer), must navigate highly restrictive regulations that make it difficult for Bonitas to innovate, grow, and compete with market leader Discovery as well as providers of alternative insurance products. Bonitas... View Details
Keywords: Health Insurance; Health Care; South Africa; Medical Scheme; Public Policy; Bonitas; Bonitas Medical Fund; National Health Insurance; Health; Health Care and Treatment; Insurance; Policy; Health Industry; Insurance Industry; South Africa; Johannesburg; Africa
Herzlinger, Regina E., and Natalie Kindred. "Bonitas." Harvard Business School Case 315-020, March 2015. (Revised November 2017.)
- Article
Investors as Stewards of the Commons?
By: George Serafeim
Over the past few years, there has been a significant increase in the number of initiatives seeking to mobilize investor voice towards positive social impact. In this paper, I provide a framework outlining the role of investors as stewards of the commons. While... View Details
Keywords: Collaboration; Industry Self-regulation; Sustainability; ESG; Capital Markets; Investor Behavior; Investment Activism; Social Issues; Environmental Sustainability; Corporate Social Responsibility and Impact; Cooperation
Serafeim, George. "Investors as Stewards of the Commons?" Journal of Applied Corporate Finance 30, no. 2 (Spring 2018): 8–17.
- 2011
- Teaching Note
Juner New Materials: On the Road to IPO (TN)
By: F. Warren McFarlan, Donglin Xia, Ning Jia and Ziqian Zhao
Juner New Materials (Juner) is a private China-based company that develops, produces, and distributes modified plastic compounds. Founded in 1995 by female serial entrepreneur Xiaomin Chen, Juner has exhibited strong performance and growth potential in the past fifteen... View Details
Keywords: Emerging Markets; Entrepreneurship; Financial Statements; IPO; Valuation; Women Executives; China; Plastics; China
McFarlan, F. Warren, Donglin Xia, Ning Jia, and Ziqian Zhao. "Juner New Materials: On the Road to IPO (TN)." Tsinghua University Teaching Note, 2011.
- 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... 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; Governing and Advisory Boards; Mergers and Acquisitions; Corporate Governance; Management Teams; Business and Shareholder Relations; Pharmaceutical Industry
Paine, Lynn S., Suraj Srinivasan, John C. Coates, and David Lane. "The Allergan Board Under Fire (A)." Harvard Business School Case 316-010, January 2016. (Revised January 2019.)
- November 1999
- Case
Long-Term Capital Management, L.P. (A)
By: Andre F. Perold
Long-Term Capital Management, L.P. (LTCM) was in the business of engaging in trading strategies to exploit market pricing discrepancies. Because the firm employed strategies designed to make money over long horizons--from six months to two years or more--it adopted a... View Details
Keywords: Fluctuation; Capital; Financial Liquidity; Financing and Loans; Investment Funds; Investment Portfolio; Corporate Governance; Governing Rules, Regulations, and Reforms; Management; Risk Management; Marketing; Motivation and Incentives; Financial Services Industry
Perold, Andre F. "Long-Term Capital Management, L.P. (A)." Harvard Business School Case 200-007, November 1999.
- December 2018 (Revised May 2021)
- Background Note
Making UK Energy Smarter
By: John R. Wells and Benjamin Weinstock
This case describes the history of the United Kingdom's domestic energy industry and the country's efforts to create a more competitive, greener, and distributed power sector. On July 24, 2017, the United Kingdom government and the industry regulator, the Office of Gas... View Details
Keywords: Energy Policy; Regulation; Energy Markets; Subsidies; Oligopolistic Competition; Barriers To Entry; Wholesale; Electric Vehicle; Batteries; Energy Storage; Competition Policy; Energy; Policy; Renewable Energy; Governing Rules, Regulations, and Reforms; Vertical Integration; Competition; Market Entry and Exit; Disruption; Energy Industry; United Kingdom
Wells, John R., and Benjamin Weinstock. "Making UK Energy Smarter." Harvard Business School Background Note 719-438, December 2018. (Revised May 2021.)
- June 2025
- Article
Passive Ownership and Price Informativeness
By: Marco Sammon
I show that passive ownership negatively affects the degree to which stock prices anticipate earnings announcements. Estimates across several research designs imply that the rise in passive ownership over the last 30 years has caused the amount of information... View Details
Keywords: Passive Ownership; ETFs; Market Efficiency; Price; Investment Funds; Stocks; Communication
Sammon, Marco. "Passive Ownership and Price Informativeness." Management Science 71, no. 6 (June 2025): 4582–4598.
- June 2011 (Revised June 2012)
- Case
Sephora Direct: Investing in Social Media, Video, and Mobile
By: Elie Ofek and Alison Berkley Wagonfeld
Julie Bornstein, senior vice president of Sephora Direct, is seeking to double her budget for social media and other digital marketing initiatives for 2011. A number of digital efforts implemented in the past two years seem to be bearing fruit and there is a desire to... View Details
Keywords: History; Leadership; Marketing Strategy; Marketing; Emerging Markets; Investment Return; Investment Funds; Budgets and Budgeting
Ofek, Elie, and Alison Berkley Wagonfeld. "Sephora Direct: Investing in Social Media, Video, and Mobile." Harvard Business School Case 511-137, June 2011. (Revised June 2012.)
- December 2022 (Revised January 2023)
- Case
Cann: High Hopes for Cannabis Infused Beverages
By: Ayelet Israeli and Anne V. Wilson
Founded in 2018 by Jake Bullock and Luke Anderson, Cann sold “social tonics,” or cannabis-infused beverages. By 2022, the company had several notable celebrity investors and talent partners, had sold over 10 million beverages to consumers, was distributing in six... View Details
Keywords: Stigma; Product Innovation; Product Introduction; Product Differentiation; New Products; New Product Marketing; New Product Management; Brand Management; Branding; Packaging; Positioning; Growth Strategy And Execution; Growth; Cannabis Industry; Purpose; Purpose Brands; LGBTQ; Direct-to-consumer; DTC; Regulations; Channels Of Distribution; Product Development; Product Marketing; Product Positioning; Product; Innovation and Invention; Brands and Branding; Marketing; Marketing Communications; Marketing Channels; Advertising; Advertising Campaigns; Digital Marketing; Market Entry and Exit; Governing Rules, Regulations, and Reforms; Consumer Products Industry; Food and Beverage Industry; United States; Canada; North America
Israeli, Ayelet, and Anne V. Wilson. "Cann: High Hopes for Cannabis Infused Beverages." Harvard Business School Case 523-074, December 2022. (Revised January 2023.)
- September 2015 (Revised June 2017)
- Case
Futbol Club Barcelona
By: Anita Elberse
In June 2015, FC Barcelona president Josep Bartomeu sees his team lift the UEFA Champions League trophy, completing an impressive trophy haul in the 2014-2015 season. Unique for a club of its caliber, five of the starting eleven are products of FC Barcelona's youth... View Details
Keywords: Superstar; Talent; Talent Development And Retention; Talent Management; Marketing; Strategy; General Management; Nonprofit; Marketing Strategy; Talent and Talent Management; Entertainment; Media; Competitive Advantage; Sports; Sports Industry; Entertainment and Recreation Industry; Barcelona
Elberse, Anita. "Futbol Club Barcelona." Harvard Business School Case 516-031, September 2015. (Revised June 2017.)
- November 1999
- Case
Long-Term Capital Management, L.P. (C)
By: Andre F. Perold
Long-Term Capital Management, L.P. (LTCM) was in the business of engaging in trading strategies to exploit market pricing discrepancies. Because the firm employed strategies designed to make money over long horizons--from six months to two years or more--it adopted a... View Details
Keywords: Fluctuation; Capital; Financial Liquidity; Financing and Loans; Investment Funds; Investment Portfolio; Corporate Governance; Governing Rules, Regulations, and Reforms; Management; Risk Management; Markets; Motivation and Incentives; Financial Services Industry
Perold, Andre F. "Long-Term Capital Management, L.P. (C)." Harvard Business School Case 200-009, November 1999.
- 02 Feb 2015
- Working Paper Summaries
Mobile Money: The Effect of Service Quality and Competition on Demand
- February 2010 (Revised July 2010)
- Case
Barclays Wealth: Reignite WAR or Launch AlphaStream?
By: Lena G. Goldberg and Elisa Farri
In late January 2009, Thomas Fekete, managing director at Barclays Wealth in London, redeemed the most illiquid positions in the so-called Wealth Absolute Return Fund (WAR), one of Barclays Wealth's most promising offshore funds of hedge funds, and halted the Fund's... View Details
Keywords: Financial Crisis; Financial Liquidity; International Finance; Investment Funds; Governing Rules, Regulations, and Reforms; Strategy; Financial Services Industry; London
Goldberg, Lena G., and Elisa Farri. "Barclays Wealth: Reignite WAR or Launch AlphaStream?" Harvard Business School Case 310-090, February 2010. (Revised July 2010.)
- 22 Dec 2006
- Research & Ideas
What’s Behind the Private Equity Boom?
Podcast with: Josh Lerner Interviewer: James Aisner Running Time: 15 min., 56 sec. View Details
- 10 Apr 2008
- Working Paper Summaries
Where Does it Go? Spending by the Financially Constrained
- 31 Mar 2011
- Research & Ideas
From SpinPop to SpinBrush: Entrepreneurial Lessons from John Osher
lot of companies spend a lot of resources playing defense. We want to play offense, we want to innovate, pilot, template it, build for scale, and go," said Mark Norman (HBS MBA 1994), president and COO of Zipcar, the time-sharing car service. "Raise View Details
- September 2014 (Revised May 2017)
- Case
Fresno's Social Impact Bond for Asthma
By: John A. Quelch and Margaret L. Rodriguez
In 2014, Social Impact Bonds (SIBs) were quickly gaining popularity as an investment vehicle which joined together private investors and nonprofits to tackle social issues. Although numerous SIB projects and proposals had cropped up across the U.S. following the launch... View Details
Keywords: Social Enterprise; Health Care; Marketing; Bonds; Financing; Asthma; Air Pollution; Air Quality; Chronic Disease; Public Health; Health; Health Care and Treatment; Finance; Health Industry; Financial Services Industry; United States
Quelch, John A., and Margaret L. Rodriguez. "Fresno's Social Impact Bond for Asthma." Harvard Business School Case 515-028, September 2014. (Revised May 2017.)
- 12 Feb 2007
- Lessons from the Classroom
‘UpTick’ Brings Wall Street Pressure to Students
In a Harvard Business School classroom, students in the Dynamic Markets class may have one minute to make a decision in a pressure cooker one called "the most stress I've experienced in ten years." It's margin call time in a... View Details