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- August, 2025
- Article
Faith and Assimilation: Italian Immigrants in the U.S.
By: Stefano Gagliarducci and Marco Tabellini
How do ethnic religious organizations influence immigrant assimilation? To answer this question, we assemble novel data from the Catholic directories to measure the presence of Italian Catholic churches in the US between 1890 and 1920, when four million Italians moved... View Details
Gagliarducci, Stefano, and Marco Tabellini. "Faith and Assimilation: Italian Immigrants in the U.S." Economic Journal 135, no. 670 (August, 2025): 1814–1851. (Pre-published online February 20, 2025. Also available from NBER and featured in NBER Digest and VoxEU.)
- July 2025
- Teaching Note
Greenwood Online: A Fin-Tech Service for Culture and Community
By: James Riley and Bernal Cortés
In 2020, Ryan Glover and Paul Judge launched Greenwood, a fintech startup designed to counter systemic racial discrimination in the American banking ecosystem by offering accessible financial services tailored to Black and Brown communities, but available to all.... View Details
- July 2025
- Case
Greenwood Online: A Fin-Tech Service for Culture and Community (A)
By: James Riley and Bernal Cortés
In 2020, Ryan Glover and Paul Judge launched Greenwood, a fintech startup designed to counter systemic racial discrimination in the American banking ecosystem by offering accessible financial services tailored to Black and Brown communities, but available to all.... View Details
- July 2025
- Background Note
Ecosystem Disruption: A Multi-Stakeholder View of Disruptive Innovations
By: E. Ofek, Michael Haenlein, Eitan Muller and Roman Welden
The purpose of this note is to offer a more expansive view of how innovations disrupt markets than has been portrayed thus far in the extant literature by taking an ecosystem perspective. This broader outlook allows examining not only the product strategies of the... View Details
- 2025
- Working Paper
Rethinking Volume
By: Philippe van der Beck, Lorenzo Bretscher and Zhiyu Julie Fu
Gross trading volumes in financial markets are large and far exceed return volatility. In contrast, “net volume”—trading from persistent portfolio reallocations—is substantially lower, as it excludes transitory round-trip trades. This observation reveals a fundamental... View Details
van der Beck, Philippe, Lorenzo Bretscher, and Zhiyu Julie Fu. "Rethinking Volume." Harvard Business School Working Paper, No. 26-003, July 2025.
- July 2025
- Article
Extraverts Reap Greater Social Rewards from Passion Because They Express Passion More Frequently and More Diversely
By: Kai Krautter, Anabel Büchner and Jon M. Jachimowicz
Passion is stereotypically expressed through animated facial expressions, energetic body movements, varied tone, and pitch—and met with interpersonal benefits. However, these capture only a subset of passion expressions that are more common for extraverts. Indeed, in... View Details
Keywords: Passion; Personality; Extraversion; Scale Development; Perception; Personal Characteristics
Krautter, Kai, Anabel Büchner, and Jon M. Jachimowicz. "Extraverts Reap Greater Social Rewards from Passion Because They Express Passion More Frequently and More Diversely." Personality and Social Psychology Bulletin 51, no. 7 (July 2025): 1159–1172.
- 2025
- Working Paper
The Extent and Drivers of Internal Agglomeration of U.S. Multi-Unit Firms
By: Juan Alcácer and Jasmina Chauvin
This paper examines the extent and determinants of internal agglomeration—the spatial clustering of establishments within firms. It introduces a novel methodology that benchmarks a firm’s spatial footprint against that of comparable stand-alone firms, yielding a... View Details
Keywords: Multi-unit Firms; Agglomeration; Spatial Organization; Economies Of Scope; Organizational Design; Diversification; Corporate Strategy; Business Units
Alcácer, Juan, and Jasmina Chauvin. "The Extent and Drivers of Internal Agglomeration of U.S. Multi-Unit Firms." Harvard Business School Working Paper, No. 26-002, July 2025.
- 2025
- Working Paper
Where Discovery Happens: Research Institutions and Fundamental Knowledge in the Life-Sciences
By: Amitabh Chandra and Connie Xu
Fundamental knowledge in the life sciences has consequential implications for medicine and subsequent medical innovations. Using publications in leading life science journals to measure fundamental knowledge, we document large agglomerations in the institutions where... View Details
Chandra, Amitabh, and Connie Xu. "Where Discovery Happens: Research Institutions and Fundamental Knowledge in the Life-Sciences." NBER Working Paper Series, No. 33996, July 2025.
- 2025
- Working Paper
Public Displays of Alignment: Firm Speech in Autocratic Regimes
By: Joris Mueller, Jaya Y. Wen and Cheryl Wu
Political speech by firms is increasingly common around the world. This paper
examines the government as an important, yet understudied, audience for
such speech, focusing on how Chinese firms rhetorically align with the state.
We introduce novel, general, and... View Details
Keywords: Business and Government Relations; Economic Systems; Power and Influence; Government Administration; Policy; China
Mueller, Joris, Jaya Y. Wen, and Cheryl Wu. "Public Displays of Alignment: Firm Speech in Autocratic Regimes." Harvard Business School Working Paper, No. 25-064, June 2025.
- June 2025
- Case
The Value of Art on Campus as a Vision for Educating Leaders Who Make a Difference
By: James Riley, Alexis Lefort and Helen Yap
This case explores the debate surrounding the installation of a large contemporary sculpture, Inés by Jaume Plensa, at Harvard Business School under the leadership of Dean Nitin Nohria. Set in 2016, the case examines the role of physical campus design and public art in... View Details
- June 2025
- Case
(Family) Size Matters: Nico Oprée and the Decreasing Power of Family Unity over Time
By: Lauren Cohen, Octavian Graf Pilati, Dominik V. Eynern and Sophia Pan
Nico Oprée, a fourth-generation (G4) member of his family’s heavy manufacturing business, found himself reflecting on how the firm would navigate a deepening shareholder conflict. While the second generation (G2) had managed the business in harmony, dynamics shifted... View Details
Keywords: Ownership; Family Businesses; Family; Family Functioning And Support; Family Business; Family and Family Relationships; Family Ownership; Acquisition; Governance; Resignation and Termination; Leadership Style; Management Succession; Size; Negotiation Offer; Private Ownership; Business and Shareholder Relations; Trust; Conflict of Interests; Conflict Management; Manufacturing Industry; Germany
- June 2025
- Case
Khabar Lahariya
By: Ranjay Gulati and Kanika Jain
Founded and run entirely by women, Khabar Lahariya was a leading digital media portal, known for its uniquely feminist perspective and rural focus. It started in 2002 as a non-profit print publication, and by 2023, had evolved into a multimedia news site that was part... View Details
- June 2025
- Teaching Note
Paul Weiss: Fighting or Negotiating with POTUS
By: Eugene Soltes and Anthea Brady
This note was prepared by Professor Eugene Soltes and Research Associate Anthea Brady for the purpose of aiding classroom instructors in the use of “Paul Weiss: Fighting or Negotiating with POTUS,” HBS No. 125-098. It provides analysis and questions that are intended... View Details
- 2025
- Working Paper
Street Earnings: Implications for Asset Pricing
By: Sebastian Hillenbrand and Odhrain McCarthy
To address the excess volatility puzzle – the excessive movements in stock prices – researchers often study movements in valuation ratios. However, we demonstrate that movements in valuation ratios based on fundamental measures with high transitory volatility, such as... View Details
Hillenbrand, Sebastian, and Odhrain McCarthy. "Street Earnings: Implications for Asset Pricing." Working Paper, June 2025.
- June 2025
- Article
Social Security and Trends in Wealth Inequality
By: Sylvain Catherine, Max Miller and Natasha Sarin
Recent influential work finds large increases in inequality in the U.S. based on measures of wealth concentration that notably exclude the value of social insurance programs. This paper shows that top wealth shares have not changed much over the last three decades when... View Details
Catherine, Sylvain, Max Miller, and Natasha Sarin. "Social Security and Trends in Wealth Inequality." Journal of Finance 80, no. 3 (June 2025): 1497–1531.
- Summer 2025
- Article
Time Well Spent: A New Way to Value Time Could Change Your Life
By: Leslie Perlow and Salvatore J Affinito
When individuals engage in fulfilling activities outside of work, they perform better on the job, but simply encouraging work-life balance doesn’t help with hour-by-hour time management. A new tool for measuring the subjective value of time for individuals as it varies... View Details
Perlow, Leslie, and Salvatore J Affinito. "Time Well Spent: A New Way to Value Time Could Change Your Life." MIT Sloan Management Review 66, no. 4 (Summer 2025): 44–49.
- May 2025
- Case
IQanat: Empowering Rural Youth in Kazakhstan
By: Boris Groysberg and Maxim Pike Harrell
In June 2025, IQanat CEO Aliya Salikova considered scaling opportunities for the foundation, which provided educational opportunities for children from rural regions of Kazakhstan. Established by Kazakhstani businessman and philanthropist Aidyn Rakhimbayev, IQanat... View Details
Keywords: Mission and Purpose; Organizational Change and Adaptation; Leadership; Social Enterprise; Social Entrepreneurship; Growth and Development Strategy; Growth Management; Rural Scope; Philanthropy and Charitable Giving; Equality and Inequality; Education Industry; Central Asia; Kazakhstan
Groysberg, Boris, and Maxim Pike Harrell. "IQanat: Empowering Rural Youth in Kazakhstan." Harvard Business School Case 425-077, May 2025.
- 2025
- Working Paper
Trade Within Multinational Boundaries
By: Laura Alfaro, Paola Conconi, Fariha Kamal and Zachary Kroff
We leverage newly linked data from the U.S. Census Bureau and the U.S. Bureau of Economic Analysis to study transactions within U.S. multinational enterprises (MNEs). We show that using administrative data on intrafirm trade allows us to correct for measurement error... View Details
Keywords: Multinational Enterprise; Input-output Linkages; Multinational Firms and Management; Trade; Supply Chain
Alfaro, Laura, Paola Conconi, Fariha Kamal, and Zachary Kroff. "Trade Within Multinational Boundaries." Harvard Business School Working Paper, No. 25-058, May 2025.
- May 2025
- Case
Dell Med: Transforming Care Delivery & Payment
By: Robert S. Kaplan, David N. Bernstein and Mary L. Witkowski
Health care in the U.S. and globally continues to undergo massive transformation, surging towards a system that rewards value for patients. However, widespread adoption of value-based health care remains a challenge. This case study focuses on the care delivery... View Details
Keywords: Integrated Practice Units; Outcomes Measurement; Time-Driven Activity-Based Costing; Health Care and Treatment; Business Strategy; Leading Change; Decisions; Transformation; Service Delivery; Adoption; Value; Health Industry; United States; Texas
Kaplan, Robert S., David N. Bernstein, and Mary L. Witkowski. "Dell Med: Transforming Care Delivery & Payment." Harvard Business School Case 125-117, May 2025.
- May 2025 (Revised June 2025)
- Background Note
Social Enterprise in Latin America
By: Brian L. Trelstad and Karina Souza
This research note provides an overview of the social enterprise ecosystem in Latin America, exploring current dynamics across key markets, including country-specific insights on Brazil, Mexico, Argentina, Colombia, Chile, and Central America. In a region characterized... View Details
Keywords: Impact Investing; Developing Countries and Economies; Social Entrepreneurship; Emerging Markets; Corporate Social Responsibility and Impact; Mission and Purpose; Ownership; Social Enterprise; Business Strategy; Equality and Inequality; Microfinance; Governing Rules, Regulations, and Reforms; Agriculture and Agribusiness Industry; Banking Industry; Financial Services Industry; Information Technology Industry; Latin America; Brazil; Mexico; Argentina; Colombia; Chile; Guatemala; Central America; Peru; Uruguay
Trelstad, Brian L., and Karina Souza. "Social Enterprise in Latin America." Harvard Business School Background Note 325-117, May 2025. (Revised June 2025.)