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Show Results For
- All HBS Web
(1,849)
- People (5)
- News (249)
- Research (1,113)
- Events (21)
- Multimedia (8)
- Faculty Publications (760)
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- 2025
- Working Paper
Dynamic Personalization with Multiple Customer Signals: Multi-Response State Representation in Reinforcement Learning
By: Liangzong Ma, Ta-Wei Huang, Eva Ascarza and Ayelet Israeli
Reinforcement learning (RL) offers potential for optimizing sequences of customer interactions by modeling the relationships
between customer states, company actions, and long-term value. However, its practical implementation often faces significant
challenges.... View Details
Keywords: Dynamic Policy; Deep Reinforcement Learning; Representation Learning; Dynamic Difficulty Adjustment; Latent Variable Models; Customer Relationship Management; Customer Value and Value Chain; Foreign Direct Investment; Analytics and Data Science
Ma, Liangzong, Ta-Wei Huang, Eva Ascarza, and Ayelet Israeli. "Dynamic Personalization with Multiple Customer Signals: Multi-Response State Representation in Reinforcement Learning." Harvard Business School Working Paper, No. 25-037, February 2025.
- April 27, 2022
- Article
Inequality in Researchers' Minds: Four Guiding Questions for Studying Subjective Perceptions of Economic Inequality
By: Jon M. Jachimowicz, Shai Davidai, Daniela Goya-Tocchetto, Barnabas Szaszi, Martin Day, Stephanie Tepper, L. Taylor Phillips, M. Usman Mirza, Nailya Ordabayeva and Oliver P. Hauser
Subjective perceptions of inequality can substantially influence policy attitudes, public health metrics, and societal well-being, but the lack of consensus in the scientific community on how to best operationalize and measure these perceptions may impede progress on... View Details
Jachimowicz, Jon M., Shai Davidai, Daniela Goya-Tocchetto, Barnabas Szaszi, Martin Day, Stephanie Tepper, L. Taylor Phillips, M. Usman Mirza, Nailya Ordabayeva, and Oliver P. Hauser. "Inequality in Researchers' Minds: Four Guiding Questions for Studying Subjective Perceptions of Economic Inequality." Journal of Economic Surveys (April 27, 2022).
- November 2015
- Article
Influence of Experience and the Surgical Learning Curve on Long-term Patient Outcomes in Cardiac Surgery
By: Bryan M. Burt, Andrew W. ElBardissi, Robert S. Huckman, Lawrence H. Cohn, Marisa W. Cevasco, James D. Rawn, Sary F. Aranki and John G. Byrne
OBJECTIVE: We hypothesized that increased post-graduate surgical experience correlates with improved operative efficiency and long-term survival in standard cardiac surgery procedures.
METHODS: Utilizing a prospectively collected retrospective database,... View Details
METHODS: Utilizing a prospectively collected retrospective database,... View Details
Keywords: Service Delivery; Value; Health Care and Treatment; Experience and Expertise; Health Industry
Burt, Bryan M., Andrew W. ElBardissi, Robert S. Huckman, Lawrence H. Cohn, Marisa W. Cevasco, James D. Rawn, Sary F. Aranki, and John G. Byrne. "Influence of Experience and the Surgical Learning Curve on Long-term Patient Outcomes in Cardiac Surgery." Journal of Thoracic and Cardiovascular Surgery 150, no. 5 (November 2015): 1061–1067.
- December 2005 (Revised April 2011)
- Case
General Electric's 20th Century CEOs
By: Nitin Nohria, Anthony Mayo and Mark Benson
General Electric thrived in every decade of the 20th century. Since its founding in 1892, GE has placed a high value on picking and training the best people. Staff members worked with other scientists in the company's research lab to design and manufacture new and... View Details
Nohria, Nitin, Anthony Mayo, and Mark Benson. "General Electric's 20th Century CEOs." Harvard Business School Case 406-048, December 2005. (Revised April 2011.)
- December 2001 (Revised April 2003)
- Case
Financing PPL Corporation's Growth Strategy
By: Benjamin C. Esty and Carrie Ferman
PPL Corp., an electric utility in Pennsylvania, needs to finance $1 billion of peaking plants as part of its new growth strategy. In February 2001, Steve May, director of finance for PPL's Global Division, is responsible for recommending a finance plan. After... View Details
Keywords: Financial Management; Financial Instruments; Project Finance; Financial Strategy; Corporate Finance; Leasing
Esty, Benjamin C., and Carrie Ferman. "Financing PPL Corporation's Growth Strategy." Harvard Business School Case 202-045, December 2001. (Revised April 2003.)
- Article
Creating High-Impact Coalitions: CEOs Can Lead the Charge on Society’s Biggest Problems
By: Rosabeth M. Kanter and Tuna Cem Hayirli
Traditionally, responses to crises and societal problems—the COVID-19 pandemic, natural disasters, racial inequities—are considered the responsibility of the public sector and NGOs. But addressing the world’s most critical problems requires leadership, resources, and... View Details
Keywords: Coalition; Change; Problem Solving; Organization; Boundaries; Evolution; Mission; Moral Leadership; Balance; "Solutions Approach; Society; Problems and Challenges; Organizations; Mission and Purpose; Leading Change; Trust
Kanter, Rosabeth M., and Tuna Cem Hayirli. "Creating High-Impact Coalitions: CEOs Can Lead the Charge on Society’s Biggest Problems." Harvard Business Review 100, no. 2 (March–April 2022).
- 2021
- Working Paper
Consuming Contests: Outcome Uncertainty and Spectator Demand for Contest-based Entertainment
By: Patrick J. Ferguson and Karim R. Lakhani
Contests that are designed to be consumed for entertainment by non-contestants are a fixture of economic, cultural and political life. In this paper, we examine whether individuals prefer to consume contests that have more uncertain outcomes. We look to... View Details
Keywords: Contest Design; Information Preferences; Consumer Demand; Sports; Entertainment; Games, Gaming, and Gambling; Demand and Consumers; Outcome or Result
Ferguson, Patrick J., and Karim R. Lakhani. "Consuming Contests: Outcome Uncertainty and Spectator Demand for Contest-based Entertainment." Harvard Business School Working Paper, No. 21-087, February 2021.
- Article
They Are Us? The Mediating Effects of Compatibility-based Trust on the Relationship Between Discrimination and Overall Trust
By: Mariska Kappmeier, Bushra Guenoun and Remaya Campbell
The tragic Christchurch massacre brought the dangers of social ‘othering’ to the forefront of public attention. While the extreme nature of the attack shocked majority and minority groups alike, overt and latent discrimination are common experiences for many minorities... View Details
Kappmeier, Mariska, Bushra Guenoun, and Remaya Campbell. "They Are Us? The Mediating Effects of Compatibility-based Trust on the Relationship Between Discrimination and Overall Trust." New Zealand Journal of Psychology 48, no. 1 (April 2019): 97–105.
- 2011
- Working Paper
Better-reply Dynamics in Deferred Acceptance Games
In this paper we address the question of learning in a two-sided matching mechanism that utilizes the deferred acceptance algorithm. We consider a repeated matching game where at each period agents observe their match and have the opportunity to revise their strategy... View Details
Keywords: Learning; Marketplace Matching; Outcome or Result; Game Theory; Mathematical Methods; Strategy
Haeringer, Guillaume, and Hanna Halaburda. "Better-reply Dynamics in Deferred Acceptance Games." Harvard Business School Working Paper, No. 11-126, June 2011.
- November 2007 (Revised April 2008)
- Case
Hariyali Kisaan Bazaar: A Rural Business Initiative
By: David E. Bell, Nitin Sanghavi, Virginia Fuller and Mary L. Shelman
In rural India, farmers historically had limited access to quality input items for both their fields and homes. Indian conglomerate DSCL has undertaken a Rural Business Initiative to address this issue, establishing a chain of retail outlets throughout rural India... View Details
Keywords: Business Model; Business Conglomerates; Agribusiness; Rural Scope; Customer Relationship Management; Business Strategy; Service Operations; Networks; Alliances; Retail Industry; India
Bell, David E., Nitin Sanghavi, Virginia Fuller, and Mary L. Shelman. "Hariyali Kisaan Bazaar: A Rural Business Initiative." Harvard Business School Case 508-012, November 2007. (Revised April 2008.)
- 21 Nov 2023
- Research & Ideas
Employee Negativity Is Like Wildfire. Manage It Before It Spreads.
they care about their jobs,’” Goldenberg says. “’We prefer an organization in which people are passionate over an organization in which people don’t care. We just need to find the right ways to express these emotions and utilize them in a... View Details
Keywords: by Kristen Senz
- Teaching Interest
Scaling Minority Businesses
By: Archie L. Jones
Scaling Minority Businesses (SMB) is a field course designed to leverage the intellectual power and community of Harvard Business School to address the vital needs of Black-owned enterprises as they face the twin tasks of surviving and growing. The course... View Details
- Research Summary
Precautionary Bidding in Auctions
Joint work with Peter Esö, MEDS Department, Kellogg School of Management
We analyze bidding behavior in auctions when risk-averse bidders bid for an object whose value is risky. We show... View Details
- 2024
- Working Paper
Omnia Juncta in Uno: Foreign Powers and Trademark Protection in Shanghai's Concession Era
By: Laura Alfaro, Cathy Bao, Maggie X. Chen, Junjie Hong and Claudia Steinwender
We investigate how firms and markets adapt to trademark protection, an extensively utilized but under-examined form of IP protection to address asymmetric information, by exploring a historical precedent: China’s 1923 trademark law. Exploiting unique, newly digitized... View Details
Keywords: Trademark; Firm Dynamics; Intermediaries; Intellectual Property Institutions; Trademarks; Intellectual Property; Laws and Statutes; Outcome or Result; Organizational Change and Adaptation; China
Alfaro, Laura, Cathy Bao, Maggie X. Chen, Junjie Hong, and Claudia Steinwender. "Omnia Juncta in Uno: Foreign Powers and Trademark Protection in Shanghai's Concession Era." Harvard Business School Working Paper, No. 22-030, November 2021. (Revised July 2024.)
- 2020
- Chapter
Immigrant Networking and Collaboration: Survey Evidence from CIC
By: Sari Pekkala Kerr and William R. Kerr
Networking and the giving and receiving of advice outside of one's own firm are important features of entrepreneurship and innovation. We study how immigrants and natives utilize the potential networking opportunities provided by CIC, formerly known as the Cambridge... View Details
Keywords: Immigrants; Networking; Advice; Entrepreneurs; Inventors; Start-up Employees; Venturing; Co-working; Agglomeration; Immigration; Entrepreneurship; Networks; Innovation and Invention; Social and Collaborative Networks
Kerr, Sari Pekkala, and William R. Kerr. "Immigrant Networking and Collaboration: Survey Evidence from CIC." In The Roles of Immigrants and Foreign Students in U.S. Science, Innovation, and Entrepreneurship, edited by Ina Ganguli, Shulamit Kahn, and Megan MacGarvie. Chicago: University of Chicago Press, 2020.
- 2013
- Working Paper
An Empirical Study of the Spillover Effects of Workload on Patient Length of Stay
By: Jillian Berry Jaeker and Anita Tucker
We use two years of inpatient data from 243 California hospitals to quantify the relationship between hospital-level workload and patient length of stay (LOS), and its "spillover" effects across patient types. Patients are categorized as medical or surgical, and the... View Details
Keywords: Workload; Processing Times; Healthcare; Working Conditions; Performance Productivity; Time Management; Health Care and Treatment; Health Industry; California
Berry Jaeker, Jillian, and Anita Tucker. "An Empirical Study of the Spillover Effects of Workload on Patient Length of Stay." Harvard Business School Working Paper, No. 13-052, December 2012. (Revised July 2013.)
- December 2010
- Case
Oral Rehydration Therapy
By: Nava Ashraf and Claire Qureshi
This case highlights the puzzlingly high rate of diarrhea-related child mortality in developing countries despite the existence of a simple, effective treatment: oral rehydration therapy (ORT). ORT treated extreme dehydration caused by diarrhea, which was a leading... View Details
Keywords: Health Care and Treatment; Innovation Strategy; Problems and Challenges; Developing Countries and Economies; Technological Innovation; Distribution Channels; Emerging Markets; Consumer Behavior; Performance Consistency; Performance Evaluation; Health Industry; Africa; Asia
Ashraf, Nava, and Claire Qureshi. "Oral Rehydration Therapy." Harvard Business School Case 911-035, December 2010. (Request a courtesy copy.)
- Research Summary
Overview
The focus of Professor Gross’ research agenda is U.S. technological innovation, innovation policy, and the effects of technological change on economic activity. He is also interested in learning about what drives individual creative behavior. Methodologically, he is... View Details
- February 2021
- Article
Topic Classification of Electric Vehicle Consumer Experiences with Transformer-Based Deep Learning
By: Sooji Ha, Daniel J Marchetto, Sameer Dharur and Omar Isaac Asensio
The transportation sector is a major contributor to greenhouse gas (GHG) emissions and is a driver of adverse health effects globally. Increasingly, government policies have promoted the adoption of electric vehicles (EVs) as a solution to mitigate GHG emissions.... View Details
Keywords: Natural Language Processing; Analytics and Data Science; Environmental Sustainability; Infrastructure; Transportation; Policy
Ha, Sooji, Daniel J Marchetto, Sameer Dharur, and Omar Isaac Asensio. "Topic Classification of Electric Vehicle Consumer Experiences with Transformer-Based Deep Learning." Art. 100195. Patterns 2, no. 2 (February 2021).
- May 2022
- Teaching Note
Climate Action in Miami
By: Rosabeth Moss Kanter and Catarina Martinez
Teaching Note for HBS Case No. 322-101. The Miami metropolitan area is a global epicenter of climate risk from heat and sea level rise, but leaders have only recently mobilized for action to respond to this systemic challenge. Resilient 305 began a collaboration across... View Details