Publications

Educators

December 2012 (Revised September 2022)
Case

BabbaCo

By: Jeffrey J. Bussgang and Gaurav Jain

Having just raised a Series B financing, the case protagonist is faced with a tough decision: should she "step on the gas" and scale the customer base, or continue focusing on fine-tuning the product and business model. The case describes the various marketing channels... View Details

Keywords: Subscription; Marketing; Scaling; Product-market Fit; Online Marketing; Customers; Decisions; Expansion; Marketing Channels; Business Startups; Growth and Development Strategy; Digital Marketing; Marketing Strategy

Educators

13 Jan 2023
Research & Ideas

Are Companies Actually Greener—or Are They All Talk?

Most companies now account for social good in their financial reports in some way, but with regulation scattershot and evolving, it’s complicated for investors to assess so-called ESG reports. The disclosures, known as Environmental, Social, and Governance reports,... View Details

Keywords: by Rachel Layne

22 Apr 2024
Research & Ideas

When Does Impact Investing Make the Biggest Impact?

The idea of supporting social change has propelled impact investing assets to more than $1 trillion. But what if those funds aren’t as impactful as investors expect? Recent Harvard Business School research indicates that while impact... View Details

Keywords: by Rachel Layne

22 May 2024
HBS Case

Banned or Not, TikTok Is a Force Companies Can’t Afford to Ignore

might also like many other things that may or may not be like it.” Unlike other systems that use a social graph—who you follow—as a proxy for an interest graph—what you like, TikTok’s system goes directly to an interest graph. The content... View Details

Keywords: by Rachel Layne; Technology

2011
Working Paper

Leviathan as a Minority Shareholder: A Study of Equity Purchases by the Brazilian National Development Bank (BNDES), 1995-2003

By: Sergio G. Lazzarini and Aldo Musacchio

There is a growing literature comparing the performance of private vs. state-owned companies. Yet, there is little work examining the effects of having the government as a minority shareholder of private companies. We conduct such a study using data for 296 publicly... View Details

Keywords: Investment; Ownership Stake; State Ownership; Private Ownership; Performance Evaluation; Business and Government Relations; Business and Shareholder Relations; Banking Industry; Brazil

Article

How Elastic Are Preferences for Redistribution? Evidence from Randomized Survey Experiments

By: Ilyana Kuziemko, Michael I. Norton, Emmanuel Saez and Stefanie Stantcheva

We analyze randomized online survey experiments providing interactive, customized information on U.S. income inequality, the link between top income tax rates and economic growth, and the estate tax. The treatment has large effects on views about inequality but only... View Details

Keywords: Income; Taxation; Economic Growth; United States

15 Oct 2018
Research & Ideas

Shaky Business: How Handshakes Win Negotiations

the table, according to their paper, “Handshaking Promotes Deal-Making by Signaling Cooperative Intent,” forthcoming in the Journal of Personality and Social Psychology. To shake, or not to shake? In one experiment, the researchers... View Details

Keywords: by Michael Blanding

Research Summary

Overview

My work examines the social and economic processes that generate innovation and distribute its rewards in society, in the context of the United States over the past twenty years. For isntance, I have shown that in recent decades product innovations have... View Details

February 2023
Article

Homophily and Acrophily as Drivers of Political Segregation

By: Amit Goldenberg, Joseph M. Abruzzo, Zi Huang, Jonas Schone, David Bailey, Robb Willer, Eran Halperin and James J. Gross

Political segregation is an important social problem, increasing polarization and impeding effective governance. Previous work has viewed the central driver of segregation to be political homophily, the tendency to associate with others who have similar views. Here we... View Details

Keywords: Political Affiliation; Extremism; Values and Beliefs; Identity; Groups and Teams; Emotions; Civil Society or Community

Article

Can the Virtuous Mouse and the Wealthy Elephant Live Happily Ever After?

By: James E. Austin and Herman B. "Dutch" Leonard

What happens when small iconic socially oriented businesses are acquired by large corporations? Such mergers create significant opportunities for creating both business value and substantially expanded social value, but they also pose unusually difficult challenges... View Details

Keywords: Mergers and Acquisitions; Management Style; Agreements and Arrangements; Social Enterprise; Social Issues

2022
Working Paper

Pricing Power in Advertising Markets: Theory and Evidence

By: Matthew Gentzkow, Jesse M. Shapiro, Frank Yang and Ali Yurukoglu

Existing theories of media competition imply that advertisers will pay a lower price in equilibrium to reach consumers who multi-home across competing outlets. We generalize and extend this theoretical result and test it using data from television and social media... View Details

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March 2012
Article

The Hierarchical Face: Higher Rankings Lead to Less Cooperative Looks

By: Patricia Chen, Christopher G. Myers, Shirli Kopelman and Stephen M. Garcia

In 3 studies, we tested the hypothesis that the higher ranked an individual's group is, the less cooperative the facial expression of that person is judged to be. Study 1 established this effect among business school deans, with observers rating individuals from higher... View Details

Keywords: Rank and Position; Cooperation

Article

The Unprecedented Stock Market Reaction to COVID-19

By: Scott Baker, Nicholas Bloom, Steven J. Davis, Kyle Kost, Marco Sammon and Tasaneeya Viratyosin

No previous infectious disease outbreak, including the Spanish Flu, has impacted the stock market as forcefully as the COVID-19 pandemic. In fact, previous pandemics left only mild traces on the U.S. stock market. We use text-based methods to develop these points with... View Details

Keywords: COVID-19; Stock Market; Health Pandemics; Governance; Policy; Financial Markets

2008
Book

On Competition

By: M. E. Porter

Competition is one of society's most powerful forces for making things better in many ﬁelds of human endeavor. The study of competition and the creation of value, in their full richness, have preoccupied me for several decades. Competition is pervasive, whether it... View Details

Keywords: Leadership; Practice; Competitive Strategy; Theory; Value Creation

30 Oct 2017
Research & Ideas

Asking Questions Can Get You a Better Job or a Second Date

Yeomans, Institute for Quantitative Social Science, Harvard University; Julia Minson, Harvard Kennedy School; and Francesca Gino, Harvard Business School. It was published in September’s Journal of Personality and View Details

Keywords: by Rachel Layne

September 2022
Article

Loneliness Versus Distress: A Comparison of Emotion Regulation Profiles

By: Alyssa J. Tan, Vincent Mancini, James J. Gross, Amit Goldenberg, Johanna C. Badcock, Michelle H. Lim, Rodrigo Becerra, Ben Jackson and David A. Preece

Loneliness, a negative emotion stemming from the perception of unmet social needs, is a major public health concern. Current interventions often target social domains but produce small effects and are not as effective as established emotion regulation (ER)-based... View Details

Keywords: Emotions

2014
Other Unpublished Work

No Margin, No Mission? A Field Experiment on Incentives for Public Services Delivery

By: Nava Ashraf, Oriana Bandiera and Kelsey Jack

A substantial body of research investigates the effect of pay for performance in firms, yet less is known about the effect of non-financial rewards, especially in organizations that hire individuals to perform tasks with positive social spillovers. We conduct a field... View Details

Keywords: Incentives; Non-monetary Rewards; Intrinsic Motivation; Mission and Purpose; Social Enterprise; Motivation and Incentives