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Show Results For
- All HBS Web
(3,262)
- People (19)
- News (661)
- Research (1,616)
- Events (27)
- Multimedia (30)
- Faculty Publications (1,011)
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- September 2014
- Article
Colonial Institutions, Trade Stocks, and the Diffusion of Elementary Education in Brazil, 1889–1930
By: Aldo Musacchio, Andre C. Martinez Fritscher and Martina Viarengo
We show how the decentralization of fiscal responsibility among Brazilian states between 1889 and 1930 promoted an unequal expansion of public schooling. We document how the variation in state export tax revenues, product of commodity booms, explains improvements in... View Details
Musacchio, Aldo, Andre C. Martinez Fritscher, and Martina Viarengo. "Colonial Institutions, Trade Stocks, and the Diffusion of Elementary Education in Brazil, 1889–1930." Journal of Economic History 74, no. 3 (September 2014): 730 –766.
- 2012
- Article
Journalists and the Stock Market
By: Christopher Parsons, C. Dougal, J. Engelberg and D. Garcia
We use exogenous scheduling of Wall Street Journal columnists to identify a causal relation between financial reporting and stock market performance. To measure the media's unconditional effect, we add columnist fixed effects to a daily regression of excess Dow Jones... View Details
Parsons, Christopher, C. Dougal, J. Engelberg, and D. Garcia. "Journalists and the Stock Market." Review of Financial Studies 25, no. 3 (March 2012): 639–679.
- June 2013
- Article
Dysfunction in the Boardroom: Understanding the Persistent Gender Gap at the Highest Levels
By: Boris Groysberg and Deborah Bell
The article examines the gender gap that is present in boardrooms in U.S. corporations and internationally in 2013 as more women attempt to reach executive-level positions. Countries in the European Union are attempting to institute laws regarding the minimum... View Details
Keywords: Equality and Inequality; Governing and Advisory Boards; Gender; United States; European Union
Groysberg, Boris, and Deborah Bell. "Dysfunction in the Boardroom: Understanding the Persistent Gender Gap at the Highest Levels." Harvard Business Review 91, no. 6 (June 2013): 88–97.
- January 2009 (Revised March 2012)
- Case
Spain: Can the House Resist the Storm?
By: Diego A. Comin
On September 16, 2008, President Rodriguez Zapatero recognized the severity of Spain's macroeconomic situation and clearly pointed to the culprit in front of the Spanish Congress: "Let nobody doubt it; there is already a wide consensus about the origin of the crisis:... View Details
Comin, Diego A. "Spain: Can the House Resist the Storm?" Harvard Business School Case 709-021, January 2009. (Revised March 2012.)
- August 1988 (Revised December 2000)
- Case
Dunkin' Donuts (E): 1988 Distribution Strategies
Dunkin' Donuts is exploring various methods of increasing distribution. Possibilities involving new outlets include area development contracts, subfranchising, regional rollout strategies, and an increase in company owned stores. Possibilities focusing on existing... View Details
Keywords: Expansion; Franchise Ownership; Distribution Channels; Retail Industry; Food and Beverage Industry; United States
Kaufmann, Patrick J. "Dunkin' Donuts (E): 1988 Distribution Strategies." Harvard Business School Case 589-017, August 1988. (Revised December 2000.)
- August 2013
- Article
The Price of Diversifiable Risk in Venture Capital and Private Equity
By: Michael Ewens, Charles Jones and Matthew Rhodes-Kropf
This paper explores the private equity and venture capital (VC) markets and extends the standard principal-agent problem between the investors and venture capitalist to show how it alters the interaction between the venture capitalist and the entrepreneur. Since the... View Details
Keywords: Price; Risk and Uncertainty; Venture Capital; Private Equity; Contracts; Investment; Competition; Agency Theory; Investment Return; Forecasting and Prediction; Theory; Diversification
Ewens, Michael, Charles Jones, and Matthew Rhodes-Kropf. "The Price of Diversifiable Risk in Venture Capital and Private Equity." Review of Financial Studies 26, no. 8 (August 2013): 1854–1889.
- October 2009 (Revised April 2021)
- Case
Ingrid Johnson and Nedbank Business Banking
By: Michael Tushman and David Kiron
This case discusses the issue of leading change at the business banking division of Nedbank, a prominent South African bank, between 2005 and 2009. (This timeframe, beginning just 11 years after Apartheid's end, covers Ingrid Johnson's leadership of this division... View Details
Keywords: Leadership And Change Management; Leadership; Leading Change; Banks and Banking; Organizational Culture; Organizational Structure; Change Management; Leadership Style; Banking Industry; South Africa
Tushman, Michael, and David Kiron. "Ingrid Johnson and Nedbank Business Banking." Harvard Business School Case 410-003, October 2009. (Revised April 2021.)
- January – February 2011
- Article
How to Design a Winning Business Model
By: Ramon Casadesus-Masanell and Joan E. Ricart
Most executives believe that competing through business models is critical for success, but few have come to grips with how best to do so. One common mistake is enterprises' unwavering focus on creating innovative models and evaluating their efficacy in standalone... View Details
Keywords: Business Model; Design; Strength and Weakness; Competitive Strategy; Competitive Advantage
Casadesus-Masanell, Ramon, and Joan E. Ricart. "How to Design a Winning Business Model." Harvard Business Review 89, nos. 1-2 (January–February 2011): 100–107.
- Article
AI Companions Reduce Loneliness
By: Julian De Freitas, Zeliha Oğuz-Uğuralp, Ahmet K. Uğuralp and Stefano Puntoni
Chatbots are now able to engage in sophisticated conversations with consumers in the domain of relationships, providing a potential coping solution to widescale societal loneliness. Behavioral research provides little insight into whether these applications are... View Details
De Freitas, Julian, Zeliha Oğuz-Uğuralp, Ahmet K. Uğuralp, and Stefano Puntoni. "AI Companions Reduce Loneliness." Journal of Consumer Research (in press). (Pre-published online June 25, 2025.)
- October–December 2023
- Article
A Practical Guide to Conversation Research: How to Study What People Say to Each Other
By: Michael Yeomans, Katelynn Boland, Hanne K. Collins, Nicole Abi-Esber and Alison Wood Brooks
Conversation—a verbal interaction between two or more people—is a complex, pervasive, and consequential human behavior. Conversations have been studied across many academic disciplines. However, advances in recording and analysis techniques over the last decade have... View Details
Yeomans, Michael, Katelynn Boland, Hanne K. Collins, Nicole Abi-Esber, and Alison Wood Brooks. "A Practical Guide to Conversation Research: How to Study What People Say to Each Other." Advances in Methods and Practices in Psychological Science 6, no. 4 (October–December 2023).
- January 1987 (Revised June 1989)
- Case
Coca-Cola vs. Pepsi-Cola (A)
Focuses on the competitive interaction between Coca-Cola and Pepsi-Cola specifically and the effect their dominance has on the other industry participants. Coke and Pepsi's competitive strategies are examined in an in-depth analysis; each firm's behavior is used to... View Details
Pearson, Andrall E. "Coca-Cola vs. Pepsi-Cola (A)." Harvard Business School Case 387-108, January 1987. (Revised June 1989.)
- Research Summary
Antecedents and Consequences of Trust in Intraorganizational Relations: An International Comparison
This project moves the level of analysis to the intraorganizational level. The empirical context consists of internal relationships between the Information Systems (IS) function and the user groups. Are better project management techniques, better software development... View Details
- 06 May 2024
- Research & Ideas
The Critical Minutes After a Virtual Meeting That Can Build Up or Tear Down Teams
mask, and what do you unveil?” In studying backstage interactions among employees working for a global company in the United States and China, Perlow found that team members in the two locations often interpreted what happened on the... View Details
Keywords: by Michael Blanding
- January 2018 (Revised January 2021)
- Background Note
Customer Lifetime Social Value (CLSV)
By: Elie Ofek, Barak Libai and Eitan Muller
One of the hallmarks of the digital revolution is the rise of the socially connected consumer. Concomitantly, the ability of companies to affect and measure the social interactions among customers has grown tremendously. Consequently, in assessing the full value of... View Details
Keywords: Customer Lifetime Value; Customer Management; Social Contagion; Word Of Mouth; Customer Engagement; Customer Value and Value Chain; Measurement and Metrics; Customer Relationship Management
Ofek, Elie, Barak Libai, and Eitan Muller. "Customer Lifetime Social Value (CLSV)." Harvard Business School Background Note 518-077, January 2018. (Revised January 2021.)
- 2014
- Article
Where Global and Virtual Meet: The Value of Examining the Intersection of These Elements in Twenty-First-Century Teams
By: Cristina B. Gibson, Laura Huang, Bradley L. Kirkman and Debra L. Shapiro
We review prior research that has examined virtuality in teams (e.g., pertaining to the use of electronic media) or the global nature of teams (e.g., national and cultural differences), demonstrating that very few scholars have examined both simultaneously. Given that... View Details
Keywords: Global Virtual Teams; Cultural Diversity; Electronic Communication; Computer-mediated Communication; Groups and Teams; Global Range; Cross-Cultural and Cross-Border Issues; Interactive Communication
Gibson, Cristina B., Laura Huang, Bradley L. Kirkman, and Debra L. Shapiro. "Where Global and Virtual Meet: The Value of Examining the Intersection of These Elements in Twenty-First-Century Teams." Annual Review of Organizational Psychology and Organizational Behavior 1 (2014): 217–244.
- April 2018
- Article
We Ask Men to Win & Women Not to Lose: Closing the Gender Gap in Startup Funding
By: Dana Kanze, Laura Huang, Mark Conley and E. Tory Higgins
Male entrepreneurs are known to raise higher levels of funding than their female counterparts, but the underlying mechanism for this funding disparity remains contested. Drawing upon Regulatory Focus Theory, we propose that the gap originates with a gender bias in the... View Details
Kanze, Dana, Laura Huang, Mark Conley, and E. Tory Higgins. "We Ask Men to Win & Women Not to Lose: Closing the Gender Gap in Startup Funding." Academy of Management Journal 61, no. 2 (April 2018): 586–614.
- 2009
- Chapter
Platform Rules: Multi-Sided Platforms As Regulators
By: Kevin J. Boudreau and Andrei Hagiu
This chapter provides a basic conceptual framework for interpreting non-price instruments used by multi-sided platforms (MSPs) by analogizing MSPs as "private regulators" who regulate access to and interactions around the platform. We present evidence on Facebook,... View Details
Boudreau, Kevin J., and Andrei Hagiu. "Platform Rules: Multi-Sided Platforms As Regulators." In Platforms, Markets and Innovation, edited by Annabelle Gawer. Cheltenham, UK: Edward Elgar Publishing, 2009.
- 03 Dec 2007
- Research & Ideas
Authenticity over Exaggeration: The New Rule in Advertising
The past 10 years have seen some level of this direct marketing model bear out. But according to an HBS working paper to be published in the Journal of Interactive Marketing, consumers are using technology to learn about marketers, rather... View Details
- June 2014
- Teaching Note
Hindustan Petroleum Corporation Ltd.: Driving Change Through Internal Communication
By: Boris Groysberg, Sarah L. Abbott and Robin Abrahams
Hindustan Petroleum (HPCL), confronted in 2003 with an urgent need to change how it operated externally, adopted a highly innovative approach to communicating internally. This case, set in 2010, presents an overview of the new, more interactive model of employee... View Details
- October 2015
- Article
How Smart, Connected Products Are Transforming Companies
By: Michael E. Porter and James E. Heppelmann
The evolution of products into intelligent, connected devices is revolutionizing business. In a November 2014 article, "How Smart, Connected Products Are Transforming Competition," Harvard Business School professor Michael Porter and PTC president and CEO James... View Details
Keywords: Organizational Change and Adaptation; Technological Innovation; Information Technology; Organizational Structure; Operations; Business Strategy
Porter, Michael E., and James E. Heppelmann. "How Smart, Connected Products Are Transforming Companies." Harvard Business Review 93, no. 10 (October 2015): 97–114.