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(6,744)
- News (1,207)
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Show Results For
- All HBS Web
(6,744)
- News (1,207)
- Research (4,365)
- Events (115)
- Multimedia (63)
- Faculty Publications (2,983)
- 2020
- Working Paper
Social Interactions in Pandemics: Fear, Altruism, and Reciprocity
By: Laura Alfaro, Ester Faia, Nora Lamersdorf and Farzad Saidi
In SIR models, homogeneous or with a network structure, infection rates are assumed to be exogenous. However, individuals adjust their behavior. Using daily data for 89 cities worldwide, we document that mobility falls in response to fear, as approximated by Google... View Details
Keywords: Social Interactions; Pandemics; Mobility; Cities; SIR Networks; Social Preferences; Social Planner; Targeted Policies; Health Pandemics; Interpersonal Communication; Behavior; Policy
Alfaro, Laura, Ester Faia, Nora Lamersdorf, and Farzad Saidi. "Social Interactions in Pandemics: Fear, Altruism, and Reciprocity." NBER Working Paper Series, No. 27134, May 2020.
- Research Summary
Corporate Lobbying Strategy and Foreign MNEs
“U.S. Defense Contracts and the Lobbying Strategies of Foreign MNEs: The Liability of Foreignness and Make-or-Buy Decisions about Political Goods”
Many firms engage in lobbying with the expectation that their lobbying efforts will... View Details
- 2019
- Chapter
Pathways to Leadership: Black Graduates of Harvard Business School
By: Anthony J. Mayo and Laura Morgan Roberts
In chapter 3, “Pathways to Leadership,” Anthony J. Mayo and Laura Morgan Roberts present a portrait of the backgrounds, experiences, and perspectives of black alumni of the HBS MBA program. With this study, HBS has allowed itself to be exposed in a way that other... View Details
Mayo, Anthony J., and Laura Morgan Roberts. "Pathways to Leadership: Black Graduates of Harvard Business School." Chap. 3 in Race, Work, and Leadership: New Perspectives on the Black Experience, edited by Laura Morgan Roberts, Anthony J. Mayo, and David A. Thomas, 41–72. Boston, MA: Harvard Business Review Press, 2019.
- 2016
- Book
Innovation Policy and the Economy, Volume 17
By: Shane Greenstein, Josh Lerner and Scott Stern
The seventeenth volume of the National Bureau of Economic Research’s Innovation Policy and the Economy provides an accessible forum for bringing the work of leading academic researchers to an audience of policymakers and those interested in the interaction... View Details
Greenstein, Shane, Josh Lerner and Scott Stern, eds. Innovation Policy and the Economy, Volume 17. Chicago: University of Chicago Press, 2016.
- November–December 2018
- Article
Slack Time and Innovation
By: Ajay Agrawal, Christian Catalini, Avi Goldfarb and Hong Luo
Traditional innovation models assume that new ideas are developed up to the point where the benefit of the marginal project is just equal to the cost. Because labor is a key input to innovation when the opportunity cost of time is lower, such as during school breaks or... View Details
Agrawal, Ajay, Christian Catalini, Avi Goldfarb, and Hong Luo. "Slack Time and Innovation." Organization Science 29, no. 6 (November–December 2018): 1056–1073.
- Article
Predictions, Prophets, and Restarting Your Business
The first task of crisis management is a reasonably accurate view of the current situation and how it might evolve. There are many predictions about so-called “new normal” as a result of the semi-enforced social distancing necessitated by the coronavirus. But most are... View Details
Cespedes, Frank V. "Predictions, Prophets, and Restarting Your Business." Harvard Business School Working Knowledge (May 4, 2020).
- 2007
- Other Unpublished Work
Mind Over Matter? Similarities and Differences Between Perceived and Observed Networks
In spite of the rapid development of new methods for network analysis—relying on electronic data sources and sophisticated computational analysis—organizational scholars continue to rely largely on more traditional survey-based methods. We believe that the... View Details
- 07 Dec 1999
- Research & Ideas
Henry Heinz and Brand Creation in the Late Nineteenth Century
toward processed food. He was fairly confident that a "wide market awaited the manufacturer of food products who set purity and quality above everything else in their preparation. 56 View Details
Keywords: by Nancy F. Koehn
- December 2020
- Article
Stock Market Returns and Consumption
By: Marco Di Maggio, Amir Kermani and Kaveh Majlesi
This paper employs Swedish data containing security level information on households' stock holdings to investigate how consumption responds to changes in stock market returns. We exploit households’ portfolio weights in previous years as an instrument for actual... View Details
Keywords: Capital Gain; Dividend Income; Consumption; Near-rational Behavior; Investment Return; Household; Spending; Behavior
Di Maggio, Marco, Amir Kermani, and Kaveh Majlesi. "Stock Market Returns and Consumption." Journal of Finance 75, no. 6 (December 2020): 3175–3219. (DFA Distinguished Paper Prize.)
- September 1972 (Revised February 1984)
- Case
Blanchard Importing and Distribution Co., Inc.
By: Paul W. Marshall
Illustration of the two main types of errors resulting from use of the economic order quantity (EOQ) as a tool in production scheduling. Designed to permit class discussion to begin with a consideration of one common type of mistake, errors in calculation of the EOQ... View Details
Marshall, Paul W. "Blanchard Importing and Distribution Co., Inc." Harvard Business School Case 673-033, September 1972. (Revised February 1984.)
- 2016
- Working Paper
Reviews, Reputation, and Revenue: The Case of Yelp.com
By: Michael Luca
Do online consumer reviews affect restaurant demand? I investigate this question using a novel dataset combining reviews from the website Yelp.com and restaurant data from the Washington State Department of Revenue. Because Yelp prominently displays a restaurant's... View Details
Keywords: Revenue; Network Effects; Reputation; Social and Collaborative Networks; Food and Beverage Industry; Food and Beverage Industry; Washington (state, US)
Luca, Michael. "Reviews, Reputation, and Revenue: The Case of Yelp.com." Harvard Business School Working Paper, No. 12-016, September 2011. (Revised March 2016.)
- 2022
- Article
Values and Inequality: Prosocial Jobs and the College Wage Premium
By: Nathan Wilmers and Letian Zhang
Employers often recruit workers by invoking corporate social responsibility, organizational purpose, or other claims to a prosocial mission. In an era of substantial labor
market inequality, commentators typically dismiss these claims as hypocritical: prosocial... View Details
Wilmers, Nathan, and Letian Zhang. "Values and Inequality: Prosocial Jobs and the College Wage Premium." American Sociological Review 87, no. 3 (2022): 415–442.
- June 2002 (Revised November 2004)
- Compilation
John Maynard Keynes: His Life, Times, and Writings
By: Huw Pill and Ingrid Vogel
Discusses the life, times, and writings of John Maynard Keynes. Consists of three parts. First, it summarizes Keynes' life by reproducing his 1946 obituary from The Times of London. Second, it recalls the dramatic economic events of the times in which he lived by... View Details
Pill, Huw, and Ingrid Vogel. "John Maynard Keynes: His Life, Times, and Writings." Harvard Business School Compilation 702-092, June 2002. (Revised November 2004.)
- 2025
- Working Paper
Global Evidence on Gender Gaps and Generative AI
By: Nicholas G. Otis, Solène Delecourt, Katelynn Cranney and Rembrand Koning
Generative AI has the potential to transform productivity and reduce inequality, but only if adopted broadly. In this paper, we show that recently identified gender gaps in generative AI use are nearly universal. Synthesizing data from 18 studies covering more than... View Details
Otis, Nicholas G., Solène Delecourt, Katelynn Cranney, and Rembrand Koning. "Global Evidence on Gender Gaps and Generative AI." Harvard Business School Working Paper, No. 25-023, October 2024. (Revised January 2025.)
- Article
Affording to Wait: Medicare Initiation and the Use of Health Care
By: Guy David, Philip Saynisch, Victoria Acevado-Perez and Mark D. Neuman
Delays in receipt of necessary diagnostic and therapeutic medical procedures related to the timing of Medicare initiation at age 65 years have potentially broad welfare implications. We use 2005–2007 data from Florida and North Carolina to estimate the effect of... View Details
Keywords: Medicare; Behavior; Insurance; Health Care and Treatment; Insurance Industry; Public Administration Industry; Health Industry; North Carolina; Florida
David, Guy, Philip Saynisch, Victoria Acevado-Perez, and Mark D. Neuman. "Affording to Wait: Medicare Initiation and the Use of Health Care." Health Economics 21, no. 8 (August 2012): 1030–1036.
- 2017
- Working Paper
Firm Selection and Corporate Cash Holdings
By: Juliane Begenau and Berardino Palazzo
Among stock market entrants, more firms over time are R&D intensive with initially lower profitability but higher growth potential. This sample-selection effect determines the secular trend in U.S. public firms’ cash holdings. A stylized firm industry model allows us... View Details
Keywords: Initial Public Offering; Market Entry and Exit; Supply and Industry; Research and Development
Begenau, Juliane, and Berardino Palazzo. "Firm Selection and Corporate Cash Holdings." NBER Working Paper Series, No. 23249, March 2017. (Revised February 2017. Harvard Business School Working Paper, No. 16-130, May 2016)
Time Series Experiments and Causal Estimands: Exact Randomization Tests and Trading
We define causal estimands for experiments on single time series, extending the potential outcome framework to dealing with temporal data. Our approach allows the estimation of a broad class of these estimands and exact... View Details
- July 2016
- Article
Taxation, Corruption, and Growth
By: Philippe Aghion, Ufuk Akcigit, Julia Cagé and William R. Kerr
We build an endogenous growth model to analyze the relationships between taxation, corruption, and economic growth. Entrepreneurs lie at the center of the model and face disincentive effects from taxation but acquire positive benefits from public infrastructure.... View Details
Keywords: Endogenous Growth; Public Goods; Corruption; Crime and Corruption; Entrepreneurship; Taxation; Economic Growth
Aghion, Philippe, Ufuk Akcigit, Julia Cagé, and William R. Kerr. "Taxation, Corruption, and Growth." Special Issue on The Economics of Entrepreneurship. European Economic Review 86 (July 2016): 24–51.
- 27 Jun 2014
- Working Paper Summaries
Positive and Normative Judgments Implicit in US Tax Policy and the Costs of Unequal Growth and Recessions
Keywords: by Benjamin Lockwood & Matthew Weinzierl
- September 26, 2018
- Article
Ownership and Power Structure: Together at Last
By: Laura Alfaro, Nicholas Bloom, Paola Conconi, Harald Fadinger, Patrick Legros, Andrew Newman, Raffaella Sadun and John Van Reenen
Economists have largely ignored the deep interdependency between integration and delegation. This column describes a new theory of integration and delegation choices aimed at shedding light on how these distinct elements of organizational design interact. Contrary to... View Details
Alfaro, Laura, Nicholas Bloom, Paola Conconi, Harald Fadinger, Patrick Legros, Andrew Newman, Raffaella Sadun, and John Van Reenen. "Ownership and Power Structure: Together at Last." Vox, CEPR Policy Portal (September 26, 2018).