Publications
Publications
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- All HBS Web
(3,019)
- Faculty Publications (424)
- 2024
- Working Paper
Using LLMs for Market Research
By: James Brand, Ayelet Israeli and Donald Ngwe
Large language models (LLMs) have rapidly gained popularity as labor-augmenting
tools for programming, writing, and many other processes that benefit from quick text
generation. In this paper we explore the uses and benefits of LLMs for researchers and
practitioners... View Details
- 2023
- Working Paper
Applications or Approvals: What Drives Racial Disparities in the Paycheck Protection Program?
By: Sergey Chernenko, Nathan Kaplan, Asani Sarkar and David S. Scharfstein
We use the 2020 Small Business Credit Survey to study the sources of racial disparities in use of the Paycheck Protection Program (PPP). Black-owned firms are 8.9 percentage points less likely than observably similar white-owned firms to receive PPP loans. About 55% of... View Details
- March 2023
- Supplement
Halftime for Heidelberg
By: Debora L. Spar
The case follows President Rob Huntington as he seeks to find a viable way forward for Heidelberg University.
Located in Tiffin, Ohio, Heidelberg is a small, private, four-year university. As with many similar institutions of higher education, it currently faces... View Details
Located in Tiffin, Ohio, Heidelberg is a small, private, four-year university. As with many similar institutions of higher education, it currently faces... View Details
- 2023
- Working Paper
Complexity and Time
By: Benjamin Enke, Thomas Graeber and Ryan Oprea
We provide experimental evidence that core intertemporal choice anomalies -- including extreme short-run impatience, structural estimates of present bias, hyperbolicity and transitivity violations -- are driven by complexity rather than time or risk preferences. First,... View Details
- March–April 2023
- Article
Market Segmentation Trees
By: Ali Aouad, Adam Elmachtoub, Kris J. Ferreira and Ryan McNellis
Problem definition: We seek to provide an interpretable framework for segmenting users in a population for personalized decision making. Methodology/results: We propose a general methodology, market segmentation trees (MSTs), for learning market... View Details
- February 2023
- Case
Roblox: Virtual Commerce in the Metaverse
By: Ayelet Israeli and Nicole Tempest Keller
In 2022, Roblox had 58.8 million daily active users, including over half of all children and teens under the age of 16 in the United States. Roblox, a free-to-use “co-experience platform”, allowed users to come together in immersive 3D experiences to socialize, work,... View Details
Keywords: Entertainment; Games, Gaming, and Gambling; Market Design; Marketing; Brands and Branding; Marketing Channels; Marketing Strategy; Business Strategy; Economics; Economy; Economic Systems; Advertising; Advertising Campaigns; Digital Platforms; Markets; Price; Innovation and Management; Entertainment and Recreation Industry; Video Game Industry; Technology Industry; United States; California; North America; South America; Asia; Europe
- February 2023 (Revised March 2024)
- Supplement
Shanty Real Estate: Teaching Note Supplement
By: Michael Luca and Jesse M. Shapiro
Shanty is a simulation in which students inhabit the role of either a traditional home buyer or an iBuyer, both bidding on the same condo. The traditional home buyer has access to a “comp sheet” of similar properties that have recently sold, and has done a walkthrough.... View Details
- February 13, 2023
- Editorial
The Secret Tax on Women’s Time
By: Lauren C. Howe, Lindsay B. Howe and Ashley V. Whillans
When studies revealed the so-called pink tax, showing in 2015 that personal hygiene products “for her” cost 13% more than similar products for men, it caused outrage and action. The irony that women, despite generally having fewer financial resources than men, are... 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
- February 2023
- Article
Increasing the Demand for Workers with a Criminal Record
By: Zoë Cullen, Will Dobbie and Mitchell Hoffman
State and local policies increasingly restrict employers’ access to criminal records, but without
addressing the underlying reasons that employers may conduct criminal background checks.
Employers may thus still want to ask about a job applicant’s criminal record... View Details
- 2022
- Working Paper
Stories, Statistics and Memory
By: Thomas Graeber, Christopher Roth and Florian Zimmermann
For most decisions, we rely on information encountered over the course of days,
months or years. We consume this information in various forms, including abstract
summaries of multiple data points – statistics – and contextualized anecdotes about
individual instances... View Details
- 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 2022 (Revised August 2023)
- Case
Ribbit Capital and the Gauntlet Investment Opportunity
By: Shai Bernstein and Allison M. Ciechanover
Ten-year-old, Palo Alto-based Ribbit Capital is best-known for its global investments in fintech. The firm was also an early advocate of crypto and blockchain, having invested in more than two dozen startups in the space in the past decade. In the Spring of 2022,... View Details
- 2022
- Working Paper
The Limits of Decentralized Administrative Data Collection: Experimental Evidence from Colombia
By: Natalia Garbiras-Diaz and Tara Slough
States collect vast amounts of data for use in policymaking and public administration. To
do so, central governments frequently solicit data from decentralized bureaucrats. Because
central governments use these data in policymaking, decentralized bureaucrats may face... View Details
- 2022
- Article
The Pricing and Ownership of U.S. Green Bonds
By: Malcolm Baker, Daniel Bergstresser, George Serafeim and Jeffrey Wurgler
We study green bonds, which are bonds whose proceeds are used for environmentally sensitive purposes. After an overview of the U.S. corporate and municipal green bonds markets, we study pricing and ownership patterns using a simple framework that incorporates assets... View Details
Keywords: Green Bond; Pricing; Climate Finance; ESG; SRI; Sustainable; Municipal; Bonds; Environmental Sustainability; Financial Markets; Price; Ownership; United States
- November 2022 (Revised February 2024)
- Case
The Globalization of Manchester City Football Group
By: Maria P. Roche, Tiona Zuzul, Exequiel Hernandez and Amy Klopfenstein
This case describes the efforts of City Football Group (CFG) to purchase Esporte Clube Bahia (Bahia), a Brazilian professional soccer club. CFG’s strategy was to acquire under-performing clubs worldwide, invest money in high-profile players, and improve the teams’... View Details
Keywords: Business Ventures; Acquisition; Business Conglomerates; Geography; Geographic Location; Geographic Scope; Globalization; Global Strategy; Globalized Markets and Industries; Markets; Demand and Consumers; Marketing; Brands and Branding; Organizations; Organizational Change and Adaptation; Sports; Strategy; Competition; Competitive Advantage; Diversification; Expansion; Sports Industry; Europe; United Kingdom; England; South America; Brazil
- 2022
- Working Paper
The Evolution of ESG Reports and the Role of Voluntary Standards
By: Ethan Rouen, Kunal Sachdeva and Aaron Yoon
We examine the evolution of ESG reports of S&P 500 firms from 2010 to 2021. The
percentage of firms releasing these voluntary disclosures increased from 35% to 86%
during this period, although the length of these documents experienced more modest
growth. Using a... View Details
- October 2022
- Case
Afrigen Biologics: Vaccines for the Global South
By: Debora L. Spar and Julia Comeau
The majority of vaccines used on the continent of Africa (99%) are produced offshore. This makes African nations reliant on the West for major health care needs, a problem which was exacerbated by the COVID-19 pandemic. Afrigen Biologics (in partnership with the WHO)... View Details
- October 2022
- Exercise
Shanty Real Estate: Confidential Information for Homebuyer 1
By: Michael Luca, Jesse M. Shapiro and Nathan Sun
Shanty is a simulation in which students inhabit the role of either a traditional home buyer or an iBuyer, both bidding on the same condo. The traditional home buyer has access to a “comp sheet” of similar properties that have recently sold, and has done a walkthrough.... View Details
- October 2022
- Exercise
Shanty Real Estate: Confidential Information for Homebuyer 2
By: Michael Luca, Jesse M. Shapiro and Nathan Sun
Shanty is a simulation in which students inhabit the role of either a traditional home buyer or an iBuyer, both bidding on the same condo. The traditional home buyer has access to a “comp sheet” of similar properties that have recently sold, and has done a walkthrough.... View Details