Publications

2021
Working Paper

The Great Unequalizer: Initial Health Effects of COVID-19 in the United States

By: Marcella Alsan, Amitabh Chandra and Kosali I. Simon

We measure inequities from the COVID-19 pandemic on mortality and hospitalizations in the United States during the early months of the outbreak. We discuss challenges in measuring health outcomes and health inequality, some of which are specific to COVID-19 and others... View Details

Keywords: COVID-19; Health Inequality; Health Pandemics; Demographics; Equality and Inequality

September 2018 (Revised January 2019)
Teaching Note

Gemini Investors

By: Richard S. Ruback, Royce Yudkoff and Ahron Rosenfeld

Teaching Note for HBS No. 211-066. Gemini Investors was a private equity firm that targeted equity investments of between $4 million to $6 million per firm. In the period from 2000 to 2015, Gemini had successfully deployed four funds, all licensed as Small Business... View Details

Keywords: Small ＆ Medium-sized Enterprises; Small Business; Private Equity; Investment Funds; Decision Making; Financial Services Industry; United States

May 2008
Article

Real and Accrual-Based Earnings Management in the Pre- and Post-Sarbanes Oxley Periods

By: Daniel Cohen, Aiyesha Dey and Thomas Lys

We document that accrual‐based earnings management increased steadily from 1987 until the passage of the Sarbanes‐Oxley Act (SOX) in 2002, followed by a significant decline after the passage of SOX. Conversely, the level of real earnings management activities declined... View Details

Keywords: Earnings Management; Governing Rules, Regulations, and Reforms; Outcome or Result

December 2014
Other Article

Private Equity, Jobs, and Productivity—Online Appendix

By: Steven J. Davis, John Haltiwanger, Kyle Handley, Ron Jarmin, Josh Lerner and Javier Miranda

Private equity critics claim that leveraged buyouts bring huge job losses. To investigate this claim, we construct and analyze a new dataset that covers U.S. private equity transactions from 1980 to 2005. We track 3,200 target firms and their 150,000 establishments... View Details

Keywords: Job Cuts and Outsourcing; Private Equity; Performance Productivity

January 2011
Article

Let the Right One In: A Microeconomic Approach to Partner Choice in Mutualisms

By: Marco Archetti, Francisco Ubeda, Drew Fudenberg, Jerry R. Green, Naomi E. Pierce and Douglas W. Yu

One of the main problems impeding the evolution of cooperation is partner choice. When information is asymmetric (the quality of a potential partner is known only to himself), it may seem that partner choice is not possible without signaling. Many mutualisms, however,... View Details

Keywords: Microeconomics; Strategy; Partners and Partnerships; System; Problems and Challenges; Information; Economics; Theory; Cost; Decision Choices and Conditions; Cooperation

2009
Working Paper

Consistency and Monotonicity in One-Sided Assignment Problems

By: Bettina-Elisabeth Klaus and Alexandru Nichifor

One-sided assignment problems combine important features of two well-known matching models. First, as in roommate problems, any two agents can be matched and second, as in two-sided assignment problems, the payoffs of a matching can be divided between the agents. We... View Details

Keywords: Markets

23 Jul 2020
News

The Long Game of Coronavirus Research

16 Jul 2018
News

WalletHub’s Best Airline Miles Credit Cards

Web

Business, Government & the International Economy - Faculty & Research

narrowly defined product categories, we analyze two key sources of variation in prices within a store: temporary price discounts and differences across similar products. Price changes associated with discounts grew at a much lower average... View Details

29 Jul 2019
Research & Ideas

How Companies Benefit When Employees Work Remotely

Operations Management Unit at Harvard Business School, and fellow researchers compared the outcomes of flexible work arrangements at the US Patent and Trademark Office (USPTO). The team found that employees with liberal “work from anywhere” arrangements, View Details

Keywords: by Kristen Senz

15 Feb 2022
Book

When Working Harder Doesn’t Work, Time to Reinvent Your Career

career well in advance. Brooks recalls not knowing exactly when his French horn skills started going downhill, but musicians, similar to athletes, rely on precise fine motor muscles that often deteriorate with age, use, and injury. People... View Details

Keywords: by Avery Forman

06 Jul 2016
Research & Ideas

The Truth About Authentic Leaders

with others. They don’t hide behind their flaws; instead, they seek to understand them. This lifelong developmental process is similar to what musicians and athletes go through in improving their capabilities. How leaders develop their... View Details

Keywords: by Bill George

27 Jun 2005
Research & Ideas

Asian and American Leadership Styles: How Are They Unique?

business leaders adopted already, and which styles are likely to be most successful in the future? In a talk in Kuala Lumpur on June 15 at the invitation of The Star/BizWeek publication and the Harvard Club of Malaysia, Mills explained the differences and View Details

Keywords: by D. Quinn Mills

2022
Article

Efficiently Training Low-Curvature Neural Networks

By: Suraj Srinivas, Kyle Matoba, Himabindu Lakkaraju and Francois Fleuret

Standard deep neural networks often have excess non-linearity, making them susceptible to issues such as low adversarial robustness and gradient instability. Common methods to address these downstream issues, such as adversarial training, are expensive and often... View Details

Keywords: AI and Machine Learning

December 2021
Case

The Instant Payment Mandate: The Central Bank of Brazil and Pix

By: Lauren Cohen and Spencer C. N. Hagist

João M. P. De Mello and his team at the Central Bank of Brazil are preparing a move that would seek to tilt the scales in favor of financial inclusion for the entire country. The innovation at hand is the unprecedented nation-wide instant payment scheme: Pix. The fruit... View Details

Keywords: Fintech; Finance; Entrepreneurship; Innovation Strategy; Banking Industry; Brazil

Educators

2021
Book

Global Goliaths: Multinational Corporations in the 21st Century Economy

By: C. Fritz Foley, James R. Hines Jr. and David Wessel

Globalization and multinational corporations have long seemed partners in the enterprise of economic growth: globalization-led prosperity was the goal, and giant corporations spanning the globe would help achieve it. In recent years, however, the notion that all... View Details

Keywords: Multinational Firms and Management; Globalization; Economy; Economic Growth; Equality and Inequality; Employment; Policy

December 2018
Article

Reserve Design: Unintended Consequences and the Demise of Boston's Walk Zones

By: Umut Dur, Scott Duke Kominers, Parag A. Pathak and Tayfun Sönmez

Admissions policies often use reserves to grant certain applicants higher priority for some (but not all) available seats. Boston’s school choice system, for example, reserved half of each school’s seats for local neighborhood applicants while leaving the other half... View Details

Keywords: Neighborhoods; Equal Access; School Choice; Affirmative Action; Desegregation; Marketplace Matching; Fairness; Local Range; Education; Policy

December 2014
Article

Private Equity, Jobs, and Productivity

By: Steven J. Davis, John Haltiwanger, Kyle Handley, Ron Jarmin, Josh Lerner and Javier Miranda

Private equity critics claim that leveraged buyouts bring huge job losses. To investigate this claim, we construct and analyze a new dataset that covers U.S. private equity transactions from 1980 to 2005. We track 3,200 target firms and their 150,000 establishments... View Details

Keywords: Private Equity; Leveraged Buyouts; Performance Productivity; Jobs and Positions; United States