Publications

January 2022
Article

Why is Corporate Virtue in the Eye of The Beholder? The Case of ESG Ratings

By: Dane Christensen, George Serafeim and Anywhere Sikochi

Despite the rising use of environmental, social, and governance (ESG) ratings, there is substantial disagreement across rating agencies regarding what rating to give to individual firms. As what drives this disagreement is unclear, we examine whether a firm’s ESG... View Details

Keywords: ESG Ratings; Rating Agency Disagreement; ESG Disclosure; Corporate Social Responsibility; Sustainability; Corporate Social Responsibility and Impact; Environmental Sustainability; Corporate Disclosure

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09 Apr 2001
Research & Ideas

Marketing a Country: Promotion as a Tool for Attracting Foreign Investment.

Investment Promotion Like some other activities financed by governments, investment promotion has certain characteristics of tasks typically carried out by the government but others that are normally... View Details

Keywords: by Louis T. Wells & Alvin G. Wint

18 May 2022
Research & Ideas

Are Banks the ‘Bad Guys’? Overdraft Fees Are Crushing Low-Income Customers

Payday lenders have long been cast as villains for charging consumers sky-high interest rates, leaving borrowers who live paycheck to paycheck struggling to repay loans. But conventional banks are just as guilty of using fees to penalize consumers, hurting low-income... View Details

Keywords: by Rachel Layne; Financial Services

December 2011 (Revised May 2015)
Case

Aviva Investors

By: George Serafeim

The Aviva Investors case describes the challenge of integrating sustainability considerations into the strategy and business practices of companies and into the decision making process of the investment community. Steve Waygood, Chief Responsible Investment Officer at... View Details

Keywords: Investing; Investment Management; Shareholder Activism; Disclosure; Stock Exchanges; Sustainability; Sustainable Development; Sustainability Reporting; ESG; ESG (Environmental, Social, Governance) Performance; Social Impact; Activism; Investment; Management; Business and Shareholder Relations; Environmental Sustainability; United Kingdom

2025
Working Paper

Tax Elasticities of Top Donors: Evidence from Family Foundations

By: Simon Essig Aberg

High net-worth donors who give through a family foundation or donor-advised fund constitute the fastest growing segment of charitable giving in the United States. Using a novel database of foundation tax filings, I document facts about top donors, estimate how they... View Details

Keywords: Philanthropy and Charitable Giving; Taxation; Motivation and Incentives

SSRN

16 Feb 2023
HBS Case

ESG Activists Met the Moment at ExxonMobil, But Did They Succeed?

The impact-investment hedge fund Engine No. 1 made a big splash in May 2021 when it managed to get three nominees elected to the ExxonMobil board of directors. It was an open effort to prod the oil giant toward renewable energy and test whether activist investing could... View Details

Keywords: by Lane Lambert; Financial Services

July 2017 (Revised November 2017)
Case

Media Markets Down South: Goldman Sachs' Investment in Grupo Clarín

By: Rafael Di Tella, Jose Liberti and Sarah McAra

Founded in 1945, Grupo Clarín expanded over several decades to become Argentina’s largest media conglomerate. With leading positions in newspapers, broadcast television, broadcast radio, cable television, and Internet services, Grupo Clarín caught the attention of... View Details

Keywords: Media; Business and Government Relations; Risk and Uncertainty; Initial Public Offering; Investment; Journalism and News Industry; Media and Broadcasting Industry; Argentina

2017
Working Paper

Cost of Experimentation and the Evolution of Venture Capital

By: Michael Ewens, Ramana Nanda and Matthew Rhodes-Kropf

We study how technological shocks to the cost of starting new businesses have led the venture capital model to adapt in fundamental ways over the prior decade. We both document and provide a framework to understand the changes in the investment strategy of VCs in... View Details

Keywords: Innovation; Investing; Abandonment Option; Technological Innovation; Venture Capital; Entrepreneurship; Investment

SSRN

Web

HBS Alumni Conference: Accelerating Climate Solutions - Alumni

loss, and human rights abuses, as well as building out the frameworks for positive impact finance needed to achieve the UN Sustainable Development Goals. He is a UN representative on the Board of the Principles for Responsible Investment... View Details

September 2020
Teaching Note

TransDigm in 2017: The Beginning of the End or the End of the Beginning?

By: Benjamin C. Esty and Daniel Fisher

Teaching Note for HBS Case No. 720-422. TransDigm was a highly acquisitive company that manufactured a wide range of highly engineered aerospace parts for both military and commercial customers. Over the ten years ending in 2016, its stock price had increase ten times,... View Details

June 2018
Article

Cost of Experimentation and the Evolution of Venture Capital

By: Michael Ewens, Ramana Nanda and Matthew Rhodes-Kropf

We study how technological shocks to the cost of starting new businesses have led the venture capital model to adapt in fundamental ways over the prior decade. We both document and provide a framework to understand the changes in the investment strategy of VCs in... View Details

Keywords: Innovation; Investing; Abandonment Option; Technological Innovation; Venture Capital; Investment

September 2002 (Revised August 2003)
Case

Genzyme's Gaucher Initiative: Global Risk and Responsibility

By: Christopher A. Bartlett and Andrew N. McLean

In Egypt, Genzyme's humanitarian commitment to treat all sufferers of the rare Gaucher disease worldwide first confronts its commercial imperative to recoup the huge investment required to bring the drug Cerezyme to market. Here Tomye Tierney must decide how to balance... View Details

Keywords: Moral Sensibility; Investment; Emerging Markets; Negotiation; Corporate Social Responsibility and Impact; Business and Government Relations; Sales; Commercialization; Expansion; Value Creation

August 2015 (Revised June 2021)
Case

Amazon.com, 2021

By: John R. Wells, Benjamin Weinstock, Gabriel Ellsworth and Galen Danskin

In February 2021, Amazon announced 2020 operating profits of $22,899 million, up from $2,233 million in 2015, on sales of $386 billion, up from $107 billion five years earlier (see Exhibit 1). The shareholders expressed their satisfaction (see Exhibit 2), but not all... View Details

Keywords: Strategic Analysis; Retail; E-commerce; Amazon; Internet; Amazon.com; AmazonFresh; Jeff Bezos; Cloud Computing; Marketplaces; Streaming; E-reader Market; Digital Media; Mobile App; Online Retail; Shipping; Database; Tablet; Kindle; Kindle Fire; Smartphone; Delivery; Digital Platforms; Competition; Internet and the Web; Corporate Strategy; Digital Marketing; Business Growth and Maturation; Business Model; Business Organization; For-Profit Firms; Film Entertainment; Games, Gaming, and Gambling; Music Entertainment; Television Entertainment; Profit; Revenue; Global Strategy; Multinational Firms and Management; Taxation; Business History; Human Resources; Resignation and Termination; Books; Human Capital; Working Conditions; Business or Company Management; Goals and Objectives; Growth and Development Strategy; Growth Management; Management Practices and Processes; Industry Growth; Industry Structures; Media; Distribution; Distribution Channels; Order Taking and Fulfillment; Infrastructure; Logistics; Product Development; Supply Chain; Supply Chain Management; Organizational Culture; Public Ownership; Work-Life Balance; Problems and Challenges; Labor and Management Relations; Strategy; Adaptation; Business Strategy; Competitive Strategy; Diversification; Expansion; Integration; Horizontal Integration; Vertical Integration; Information Infrastructure; Information Technology; Mobile and Wireless Technology; Price; Applications and Software; Marketing; Marketing Strategy; Working Capital; Customer Focus and Relationships; Customer Value and Value Chain; Retail Industry; Advertising Industry; Distribution Industry; Electronics Industry; Entertainment and Recreation Industry; Information Technology Industry; Manufacturing Industry; Motion Pictures and Video Industry; Music Industry; Publishing Industry; Shipping Industry; Technology Industry; Video Game Industry; Web Services Industry; United States; Washington (state, US); Seattle

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

August 2014
Article

Mortgage Convexity

By: Samuel G. Hanson

Most home mortgages in the United States are fixed-rate loans with an embedded prepayment option. When long-term rates decline, the effective duration of mortgage-backed securities (MBS) falls due to heightened refinancing expectations. I show that these changes in MBS... View Details

Keywords: Mortgages; Interest Rates; Volatility

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22 Aug 2005
Research & Ideas

Restoring a Global Economy, 1950–1980

1970s, but its governments systematically discouraged wholly owned FDI [foreign direct investment], and restricted it to a low level. During the 1940s and early 1950s only the U.S. dollar was available as a major convertible currency.... View Details

Keywords: by Geoffrey Jones

2020
Article

Public Sentiment and the Price of Corporate Sustainability

By: George Serafeim

Combining corporate sustainability performance scores based on environmental, social, and governance (ESG) data with big data measuring public sentiment about a company’s sustainability performance, I find that the valuation premium paid for companies with strong... View Details

Keywords: Sustainability; ESG; ESG (Environmental, Social, Governance) Performance; Investment Management; Investment Strategy; Big Data; Machine Learning; Environment; Environmental Sustainability; Corporate Governance; Performance; Asset Pricing; Investment; Management; Strategy; Human Capital; Public Opinion; Value; Analytics and Data Science

SSRN

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20 Mar 2007
First Look

First Look: March 20, 2007

firm-size distribution and de jure and de facto measures of international capital integration. We then explore causal channels through which foreign capital may encourage entrepreneurship. We find evidence that entrepreneurial activity in industries which are more... View Details

Keywords: Martha Lagace

April 2021 (Revised April 2022)
Case

OneTen: One Million Opportunities in Ten Years

By: V. Kasturi Rangan and Courtney Han

In the wake of George Floyd's killing in May 2020, and widespread protests for social justice in the United States, OneTen was formed by a coalition of 40 large companies to provide one million jobs for African-Americans in 10 years. The case describes the background... View Details

Keywords: Labor Market; COVID-19 Pandemic; Diversity; Race; Jobs and Positions; Opportunities; Social Issues; Employment; Equality and Inequality; Equity; United States