Publications
Publications
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- All HBS Web
(3,180)
- Faculty Publications (781)
- July 2022 (Revised February 2025)
- Case
A Soul and a Service: North Carolina Mutual Life Insurance
By: Tom Nicholas and John Masko
The North Carolina Mutual and Provident Association (the Mutual) was founded in 1898 as a for-profit entity selling life insurance catering to the Black community. The Mutual was entering a field crowded with established White-owned competitors that largely refused to... View Details
- July 2022 (Revised September 2022)
- Case
Birla Carbon Egypt: Building Soft Power in a Foreign Country
By: Jeremy Friedman and Malini Sen
Birla Carbon, a flagship business of the nearly $60-billion global conglomerate and India-headquartered Aditya Birla Group (ABG), is one of the world's top manufacturers and suppliers of high-quality carbon black. The largest among its 16 manufacturing plants is Birla... View Details
Keywords: Acquisition; Family Business; Disruption; Transformation; Diversity; Trade; Energy; Values and Beliefs; Cross-Cultural and Cross-Border Issues; Global Strategy; Government and Politics; Private Ownership; Civil Society or Community; Risk and Uncertainty; Value Creation; Industrial Products Industry; Rubber Industry; Egypt; Africa; India; Asia; Atlanta; United States
- 2025
- Working Paper
The Political Polarization of Corporate America
By: Vyacheslav Fos, Elisabeth Kempf and Margarita Tsoutsoura
U.S. executives are increasingly segregating by political party. We establish this new fact using
political affiliations from voter registration records for top executives of S&P 1500 firms between
2008 and 2022. We identify key drivers of this trend, including... View Details
- 2024
- Working Paper
Hidden Alpha
By: Manuel Amman, Alexander Cochardt, Lauren Cohen and Stephan Heller
This paper documents the central role of hidden connections between fund managers and firm officers in financial markets, drawing on an extensive dataset of over 100 thousand manually identified Facebook profiles and their 35 million Facebook friends. Our findings... View Details
- 2022
- Working Paper
Retail Investors’ Contrarian Behavior Around News, Attention, and the Momentum Effect
By: Cheng (Patrick) Luo, Enrichetta Ravina, Marco Sammon and Luis M. Viceira
Using a large panel of U.S. brokerage accounts trades and positions, we show that a large fraction of retail investors trade as contrarians after large earnings surprises, especially for loser stocks, and that such contrarian trading contributes to post earnings... View Details
- June 2022
- Case
Business Implications from Regulating Carbon Emissions in the EU
By: George Serafeim and Benjamin Maletta
In the beginning of the 21st century, the European Union (the EU) had led the global fight against climate change with a wide array of policy measures. The EU’s primary approach to climate policy had been taxation via the European Union Emissions Trading System (EU... View Details
- 2022
- Working Paper
On the Estimation of Demand-Based Asset Pricing Models
A growing literature uses portfolio holdings data to quantify the impact of investor demand on equilibrium prices via counterfactual experiments. The key parameter in relating demand and equilibrium prices is investors’ elasticity of demand with respect to the price.... View Details
- April 2022
- Case
The First Opium War and Global Free Trade
By: Jeremy Friedman and Allison Lazarus
The First Opium War (1839-1842) symbolized the peak of the era of European imperialism, with a political and cultural legacy that remains potent to this day. The British Empire, “acquired in a fit of absent-mindedness” as one observer famously claimed, seemed to be... View Details
Keywords: Imperialism; Narcotics; Importing; History; Globalized Markets and Industries; Trade; Social Issues
- March 2022 (Revised February 2024)
- Case
El Salvador: Launching Bitcoin as Legal Tender
By: Laura Alfaro, Carla Larangeira and Ruth Costas
In June 2021, Nayib Bukele, El Salvador’s president, surprised the world with the announcement that the country would adopt bitcoin as legal tender, becoming the first nation to do so. Bitcoin was mostly used for trading and had one of the most volatile track records... View Details
- 2023
- Working Paper
Can Evidence-Based Information Shift Preferences Towards Trade Policy?
By: Laura Alfaro, Maggie X. Chen and Davin Chor
Amid public skepticism about trade, we investigate whether evidence-based information--a concise statement of a research finding--can shape preferences towards trade policy. Across survey experiments conducted over 2018-2022 on U.S. general population samples, we... View Details
- March 2022 (Revised April 2022)
- Case
MTN: Unlocking Value While Driving Socioeconomic Progress
By: Benjamin C. Esty, Pippa Tubman Armerding and Dilyana Karadzhova Botha
On March 10, 2021, Ralph Mupita the new CEO of MTN Group, Africa's largest telecommunications company, presented the group’s 2020 annual results and unveiled a new strategy to “drive growth and unlock value.” Despite MTN’s leadership in most of its markets, the... View Details
- March 2022 (Revised April 2022)
- Case
In Search of Global Regulation
By: Geoffrey Jones and Mona Rahmani
The history of the international regulation of global capitalism is surveyed, addressing the challenges facing firms confronting international, national, and regional regulation. Follows the history of global regulation after 1914, from the League of Nations;... View Details
- March 2022
- Article
Loan Types and the Bank Lending Channel
By: Victoria Ivashina, Luc Laeven and Enrique Moral-Benito
Using credit-registry data for Spain and Peru, we document that four main types of commercial credit—asset-based loans, cash flow loans, trade finance and leasing—are easily identifiable and represent the bulk of corporate credit. We show that credit growth dynamics... View Details
- February 2022
- Supplement
SpartanNash Company: The Amazon Warrants (A)
By: Benjamin C. Esty, E. Scott Mayfield and Daniel Fisher
As of 12/31/21, Amazon held $22 billion of equity and warrants in related companies. In fact, it often requests a free grant of warrants when it enters into a new commercial agreement with a supplier. Over the past 20 years, Amazon has gotten warrants almost 20... View Details
- 2022
- Chapter
The Servicification of the U.S. Economy: The Role of Startups versus Incumbent Firms
By: Mercedes Delgado, J. Daniel Kim and Karen G. Mills
Over the last few decades, the U.S. economy has exhibited a significant shift from manufacturing towards services. This transition has been particularly prominent in an important subcategory of services industries that drives innovation and employs many high-wage... View Details
- January 2022
- Supplement
Kornit Digital: The Amazon Warrants (C)
By: Benjamin C. Esty, E. Scott Mayfield and Daniel Fisher
As of 12/31/21, Amazon held $22 billion of equity and warrants in related companies. In fact, it often requests a free grant of warrants when it enters into a new commercial agreement with a supplier. Over the past 20 years, Amazon has gotten warrants almost 20... View Details
- January 2022
- Case
SpartanNash Company: The Amazon Warrants (A)
By: Benjamin C. Esty, E. Scott Mayfield and Daniel Fisher
As of 12/31/21, Amazon held $22 billion of equity and warrants in related companies. In fact, it often requests a free grant of warrants when it enters into a new commercial agreement with a supplier. Over the past 20 years, Amazon has gotten warrants in almost 20... View Details
- January 2022 (Revised November 2023)
- Case
Expanding the Culture of Learning at Kraft Heinz
By: Ashley V. Whillans and Carolyn Watson
The Kraft Heinz Company (KHC) was an American food company formed in 2015 by the merger of Kraft Foods Group, Inc and the H.J. Heinz Company. The company sold food products like Heinz Ketchup, Kraft Mac & Cheese, Kool-Aid, and Philadelphia cream cheese to supermarkets,... View Details
Keywords: Learning; Culture; Work Culture; Workplace Practices; Mergers; Mergers and Acquisitions; Competitive Advantage; Human Capital; Training; Performance Evaluation; Growth and Development; Personal Development and Career; Employee Relationship Management; Organizational Change and Adaptation; Organizational Culture; Food and Beverage Industry
- January 2022
- Article
Replicating Private Equity with Value Investing, Homemade Leverage, and Hold-to-Maturity Accounting
By: Erik Stafford
The contributions of asset selection and incremental leverage to buyout investment performance are more important than typically assumed or estimated to be. Buyout funds select small firms with distinct value characteristics. Public equities with these characteristics... View Details
- Article
Core Earnings: New Data and Evidence
By: Ethan Rouen, Eric C. So and Charles C.Y. Wang
Using a novel dataset, we show that components of firms' GAAP earnings stemming from ancillary business activities or transitory shocks are significant in frequency and magnitude. These components have grown over time and are dispersed across various sections of the... View Details