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Show Results For
- All HBS Web
(1,878)
- People (1)
- News (321)
- Research (1,406)
- Events (19)
- Multimedia (5)
- Faculty Publications (482)
- 09 Nov 2012
- Working Paper Summaries
Securities Litigation Risk for Foreign Companies Listed in the US
- September 2006
- Article
The Speed of Learning in Noisy Games: Partial Reinforcement and the Sustainability of Cooperation
By: Yoella Bereby-Meyer and Alvin E. Roth
In an experiment, players ability to learn to cooperate in the repeated prisoners dilemma was substantially diminished when the payoffs were noisy, even though players could monitor one anothers past actions perfectly. In contrast, in one-time play against a succession... View Details
Bereby-Meyer, Yoella, and Alvin E. Roth. "The Speed of Learning in Noisy Games: Partial Reinforcement and the Sustainability of Cooperation." American Economic Review 96, no. 4 (September 2006): 1029–1042.
Changes in Quality of Care After Hospital Mergers and Acquisitions
The hospital industry has consolidated substantially during the past two decades and at an accelerated pace since 2010. Multiple studies have shown that hospital mergers have led to higher prices for commercially insured patients, but research about effects on... View Details
- 2016
- Working Paper
College Tuition, Public Finance and New Business Starts
By: Gareth Olds
A growing public discourse cites the rising cost of education and student debt overhang as a contributor to slow economic growth. A parallel discussion explores the causes of the secular decline in business dynamism and entrepreneurship rates in the United States over... View Details
Olds, Gareth. "College Tuition, Public Finance and New Business Starts." Harvard Business School Working Paper, No. 16-145, June 2016.
- March 2022
- Article
Where to Locate COVID-19 Mass Vaccination Facilities?
By: Dimitris Bertsimas, Vassilis Digalakis Jr, Alexander Jacquillat, Michael Lingzhi Li and Alessandro Previero
The outbreak of COVID-19 led to a record-breaking race to develop a vaccine. However, the limited vaccine capacity creates another massive challenge: how to distribute vaccines to mitigate the near-end impact of the pandemic? In the United States in particular, the new... View Details
Keywords: Vaccines; COVID-19; Health Care and Treatment; Health Pandemics; Performance Effectiveness; Analytics and Data Science; Mathematical Methods
Bertsimas, Dimitris, Vassilis Digalakis Jr, Alexander Jacquillat, Michael Lingzhi Li, and Alessandro Previero. "Where to Locate COVID-19 Mass Vaccination Facilities?" Naval Research Logistics Quarterly 69, no. 2 (March 2022): 179–200.
- 2014
- Working Paper
The Psycho-Social Benefits of Access to Contraception: Experimental Evidence from Zambia
By: Nava Ashraf, Marric Buessing, Erica Field and Jessica Leight
In a field experiment in Lusaka, Zambia, married couples in the catchment area of a family planning clinic were randomly assigned to either a treatment group (N=503) or a control group (N=768). Those in the treatment group received vouchers guaranteeing free and... View Details
Ashraf, Nava, Marric Buessing, Erica Field, and Jessica Leight. "The Psycho-Social Benefits of Access to Contraception: Experimental Evidence from Zambia." Working Paper, August 2014. (Under review.)
- 2025
- Working Paper
Tracking the Short-Run Price Impact of U.S. Tariffs
By: Alberto Cavallo, Paola Llamas and Franco Vazquez
This paper examines the short-run impact of the 2025 U.S. tariffs on consumer prices using a unique integration of high-frequency retail pricing data, product-level country-of-origin information, and detailed tariff classifications. By linking daily prices from major... View Details
Cavallo, Alberto, Paola Llamas, and Franco Vazquez. "Tracking the Short-Run Price Impact of U.S. Tariffs." Working Paper, April 2025.
- 03 Jun 2022
- Research & Ideas
In a Work-from-Anywhere World, How Remote Will Workers Go?
the city or town where you have an office. And, because of that, you can hire a more diverse workforce.” In the United States, this setup does create tax complexities, for instance if an employee draws a paycheck in one state but lives in... View Details
Keywords: by Kara Baskin
- February 2009
- Article
Optimal Reserve Management and Sovereign Debt
By: Laura Alfaro and Fabio Kanczuk
Most models currently used to determine optimal foreign reserve holdings take the level of international debt as given. However, given the sovereign's willingness-to-pay incentive problems, reserve accumulation may reduce sustainable debt levels. In addition, assuming... View Details
Keywords: Borrowing and Debt; Motivation and Incentives; Decisions; Emerging Markets; Balance and Stability; Earnings Management; Policy; Interest Rates; International Finance; Cost
Alfaro, Laura, and Fabio Kanczuk. "Optimal Reserve Management and Sovereign Debt." Journal of International Economics 77, no. 1 (February 2009): 23–36. (Also Harvard Business School Working Paper, No. 07-010, 2006 and NBER Working Paper No. 13216.)
- Research Summary
Current research
Professor Pomeranz's research is situated at the intersection of development economics and public finance. Her current work focuses in particular on corporate taxation and public procurement, the two key ways in which government finance affects firms and entrepreneurs.... View Details
- 31 Jul 2013
- Working Paper Summaries
Learning from Double-Digit Growth Experiences
Keywords: by Eric D. Werker
- 2025
- Working Paper
Training Within Firms
By: Brayan Diaz, Andrea Neyra-Nazarrett, Julian Ramirez, Raffaella Sadun and Jorge Tamayo
Training investments are essential for improving worker and firm productivity, yet their
implementation is often hindered by low participation rates and insufficient worker engagement.
This study uses data from three firms–a car manufacturer, a quick-service... View Details
Keywords: Productivity; Absenteeism; Middle Managers; Training; Management Practices and Processes; Performance Productivity; Employees
Diaz, Brayan, Andrea Neyra-Nazarrett, Julian Ramirez, Raffaella Sadun, and Jorge Tamayo. "Training Within Firms." Harvard Business School Working Paper, No. 25-045, April 2025.
- 2011
- Working Paper
Fractionalization and the Municipal Bond Market
We study the impact of ethnic and religious fractionalization on the U.S. municipal debt market and find that issuers from more ethnically and religiously fractionalized counties pay higher yields on their municipal debt. A two standard deviation increase in religious... View Details
Keywords: Ethnicity Characteristics; Bonds; Financial Markets; Investment Return; Geographic Location; City; Religion; United States
Bergstresser, Daniel, Randolph Cohen, and Siddharth Shenai. "Fractionalization and the Municipal Bond Market." Harvard Business School Working Paper, No. 11-128, June 2011.
Managing in a Complex Environment
For the first time in anybody's memory we're starting to see the biopharmaceutical industry and the medical industry at large affected by a recession. I think there are a couple of reasons. One is very high unemployment, and every time the unemployment rate goes up,... View Details
- May 2022
- Case
Timnit Gebru: 'SILENCED No More' on AI Bias and The Harms of Large Language Models
By: Tsedal Neeley and Stefani Ruper
Dr. Timnit Gebru—a leading artificial intelligence (AI) computer scientist and co-lead of Google’s Ethical AI team—was messaging with one of her colleagues when she saw the words: “Did you resign?? Megan sent an email saying that she accepted your resignation.” Heart... View Details
Neeley, Tsedal, and Stefani Ruper. "Timnit Gebru: 'SILENCED No More' on AI Bias and The Harms of Large Language Models." Harvard Business School Case 422-085, May 2022.
- 2017
- Working Paper
Lessons Unlearned? Corporate Debt in Emerging Markets
By: Laura Alfaro, Gonzalo Asis, Anusha Chari and Ugo Panizza
This paper documents a set of new stylized facts about leverage and financial fragility for emerging market firms following the Global Financial Crisis (GFC). Corporate debt vulnerability indicators during the Asian Financial Crisis (AFC) attributed to corporate... View Details
Keywords: Corporate Debt; Financial Fragility; Firm-level Data; Large Firms; Emerging Markets; Borrowing and Debt; Corporate Finance; Financial Condition
Alfaro, Laura, Gonzalo Asis, Anusha Chari, and Ugo Panizza. "Lessons Unlearned? Corporate Debt in Emerging Markets." Harvard Business School Working Paper, No. 17-097, May 2017. (Revised October 2017. NBER Working Paper Series, No. 23407, May 2017)
- 28 Feb 2013
- Working Paper Summaries
Do Display Ads Influence Search? Attribution and Dynamics in Online Advertising
- 2023
- Working Paper
Point Four and the Politics of Foreign Direct Investment in the United States during the Early Cold War
By: Melanie Sheehan
This article traces business influence in the formulation of the Point Four technical assistance program, the first US Cold War-era international development program. It focuses specifically on business interest associations’ efforts to secure federal incentives to... View Details
Keywords: Point Four Program; Business Interest Association; International Development; Cold War; Foreign Direct Investment; Business History; Business and Government Relations
Sheehan, Melanie. "Point Four and the Politics of Foreign Direct Investment in the United States during the Early Cold War." Harvard Business School Working Paper, No. 23-078, June 2023.
- 22 Feb 2018
- News
Economists cannot avoid making value judgments
Market Power in Mortgage Lending and the Transmission of Monetary Policy
We present evidence that high concentration in mortgage lending reduces the sensitivity of mortgage rates and refinancing activity to mortgage-backed security (MBS) yields. We isolate the direct effect of concentration and rule out alternative explanations in two ways.... View Details