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Show Results For
- All HBS Web
(1,115)
- People (1)
- News (209)
- Research (822)
- Events (15)
- Multimedia (1)
- Faculty Publications (242)
- 2025
- Working Paper
How Do Voters Respond to Cues by Charismatic Leaders? Evidence from Brazil
By: Paula Rettl
While elite-cue effects on public opinion are well-documented, questions remain as
to when and why voters use elite cues to inform their opinions and behaviors. This
study contributes to answer these questions by testing whether voters react to cues
by charismatic... View Details
Keywords: Elites; Public Engagement; Politics; Political Affiliation; Political Campaigns; Political Influence; Political Leadership; Political Economy; Survey Research; COVID-19; COVID-19 Pandemic; COVID; Cognitive Psychology; Cognitive Biases; Political Elections; Voting; Power and Influence; Identity; Behavior; Latin America; Brazil
Rettl, Paula. "How Do Voters Respond to Cues by Charismatic Leaders? Evidence from Brazil." Harvard Business School Working Paper, No. 24-022, October 2023. (Revised June 2025.)
- July 2021
- Article
Information Transparency, Multihoming, and Platform Competition: A Natural Experiment in the Daily Deals Market
By: Hui Li and Feng Zhu
Platform competition is shaped by the likelihood of multi-homing (i.e., complementors or consumers adopt more than one platform). To take advantage of multi-homing, platform firms often attempt to motivate their rivals’ high-performing complementors to adopt their own... View Details
Keywords: Platform Competition; Multi-homing; Information Transparency; Daily Deals; Groupon; LivingSocial; Digital Platforms; Information; Competition
Li, Hui, and Feng Zhu. "Information Transparency, Multihoming, and Platform Competition: A Natural Experiment in the Daily Deals Market." Management Science 67, no. 7 (July 2021): 4384–4407.
- 2018
- Working Paper
Black Out-Migration and Southern Political Realignment
By: Leah Boustan and Marco Tabellini
Can emigration from less democratic and economically less developed areas induce political and economic change? We study this question in the context of the second Great Migration of African Americans (1940–1970), when more than 4 million blacks left the U.S. South and... View Details
- Article
Everybody Else Is Doing It: Exploring Social Transmission of Lying Behavior
By: Heather E. Mann, Ximena Garcia-Rada, Daniel Houser and Dan Ariely
Lying is a common occurrence in social interactions, but what predicts whether an individual will tell a lie? While previous studies have focused on personality factors, here we asked whether lying tendencies might be transmitted through social networks. Using an... View Details
Mann, Heather E., Ximena Garcia-Rada, Daniel Houser, and Dan Ariely. "Everybody Else Is Doing It: Exploring Social Transmission of Lying Behavior." PLoS ONE 9, no. 10 (October 2014).
- 10 May 2010
- Research & Ideas
What Top Scholars Say About Leadership
need a variety of methods, including participant observation and detailed field research, to appreciate these phenomena. No single method would be useful. Some of the tools and methods used in microsociology or even the humanities, such... View Details
- 2022
- Article
Social Interactivity in Live Video Experiences Reduces Loneliness
By: Benjamin T. Kaveladze, Robert R. Morris, Rosa Victoria Dimitrova-Gammeltoft, Amit Goldenberg, James J. Gross, Judd Antin, Melissa Sandgren and Melissa C. Thomas-Hunt
Background: Loneliness, especially when chronic, can substantially reduce one's quality of life. However, positive social experiences might help to break cycles of loneliness by promoting more prosocial cognitions and behaviors. Internet-mediated live video... View Details
Keywords: Lonelines; Social Connection; Internet-mediated Communication; Experiment; Emotions; Well-being; Interpersonal Communication; Internet
Kaveladze, Benjamin T., Robert R. Morris, Rosa Victoria Dimitrova-Gammeltoft, Amit Goldenberg, James J. Gross, Judd Antin, Melissa Sandgren, and Melissa C. Thomas-Hunt. "Social Interactivity in Live Video Experiences Reduces Loneliness." Frontiers in Digital Health 4:859849 (2022).
- 2007
- Working Paper
The Effects of a Centralized Clearinghouse on Job Placement, Wages, and Hiring Practices
By: Muriel Niederle and Alvin E. Roth
New gastroenterologists participated in a labor market clearinghouse (a "match") from 1986 through the late 1990's, after which the match was abandoned. This provides an opportunity to study the effects of a match, by observing the differences in the outcomes and... View Details
Keywords: Health; Employment; Marketplace Matching; Selection and Staffing; Job Offer; Compensation and Benefits; Health Industry
Niederle, Muriel, and Alvin E. Roth. "The Effects of a Centralized Clearinghouse on Job Placement, Wages, and Hiring Practices." NBER Working Paper Series, No. 13529, October 2007.
Jerry R. Green
Jerry R. Green
David A. Wells Professor of Political Economy
John Leverett Professor in the University
Harvard University
Jerry Green is the John Leverett Professor in the University and the David A. Wells... View Details
- 18 May 2009
- Research & Ideas
The Unseen Link Between Savings and National Growth
technology expertise they need. And thus the link to savings—to attract an investor, companies must put collateral into the project: money from savings. With access to technology, the company improves its productivity and contributes to growth of the developing... View Details
Keywords: by Sarah Jane Gilbert
- January 2017
- Article
Should You Sleep on It? The Effects of Overnight Sleep on Subjective Preference-based Choice
By: Uma R. Karmarkar, Baba Shiv and Rebecca M.C. Spencer
Conventional wisdom and studies of unconscious processing suggest that sleeping on a choice may improve decision-making. Though sleep has been shown to benefit several cognitive tasks, including problem solving, its impact on everyday choices remains unclear. Here we... View Details
Keywords: Decision Making; Choice; Sleep; Choice Sets; Confidence; Consumer Psychology; Consumer Preferences; Decision Choices and Conditions; Consumer Behavior
Karmarkar, Uma R., Baba Shiv, and Rebecca M.C. Spencer. "Should You Sleep on It? The Effects of Overnight Sleep on Subjective Preference-based Choice." Journal of Behavioral Decision Making 30, no. 1 (January 2017): 70–79.
- 29 Aug 2012
- Working Paper Summaries
Entrepreneurship and Urban Growth: An Empirical Assessment with Historical Mines
- 04 Aug 2010
- Working Paper Summaries
The Effect of Market Leadership in Business Process Innovation: The Case(s) of E-Business Adoption
- Article
Use of Connected Digital Products in Clinical Research Following the COVID-19 Pandemic: A Comprehensive Analysis of Clinical Trials
By: Caroline Marra, William J. Gordon and Ariel Dora Stern
Objectives: In an effort to mitigate COVID-19 related challenges for clinical research, the U.S. Food and Drug Administration (FDA) issued new guidance for the conduct of ‘virtual’ clinical trials in late March 2020. This study documents trends in the use of... View Details
Keywords: Connected Digital Products; Telehealth; Remote Monitoring; Health Testing and Trials; Research; Governing Rules, Regulations, and Reforms; Information Technology
Marra, Caroline, William J. Gordon, and Ariel Dora Stern. "Use of Connected Digital Products in Clinical Research Following the COVID-19 Pandemic: A Comprehensive Analysis of Clinical Trials." BMJ Open 11, no. 6 (2021).
- 10 Nov 2009
- Working Paper Summaries
Endowments, Fiscal Federalism, and the Cost of Capital for States: Evidence from Brazil, 1891-1930
- 2019
- Working Paper
Judgment Aggregation in Creative Production: Evidence from the Movie Industry
By: Hong Luo, Jeffrey T. Macher and Michael Wahlen
This paper studies a novel, light-touch approach to aggregate judgment from a large number of industry experts on ideas that they encounter in their normal course of business. Our context is the movie industry, in which customer appeal is difficult to predict and... View Details
Keywords: Judgment Aggregation; Creativity; Film Entertainment; Judgments; Motion Pictures and Video Industry
Luo, Hong, Jeffrey T. Macher, and Michael Wahlen. "Judgment Aggregation in Creative Production: Evidence from the Movie Industry." Harvard Business School Working Paper, No. 19-082, January 2019. (Revised September 2019.)
- 2023
- Working Paper
Applications or Approvals: What Drives Racial Disparities in the Paycheck Protection Program?
By: Sergey Chernenko, Nathan Kaplan, Asani Sarkar and David S. Scharfstein
We use the 2020 Small Business Credit Survey to study the sources of racial disparities in use of the Paycheck Protection Program (PPP). Black-owned firms are 8.9 percentage points less likely than observably similar white-owned firms to receive PPP loans. About 55% of... View Details
Chernenko, Sergey, Nathan Kaplan, Asani Sarkar, and David S. Scharfstein. "Applications or Approvals: What Drives Racial Disparities in the Paycheck Protection Program?" NBER Working Paper Series, No. 31172, April 2023.
- 03 Nov 2015
- HBS Seminar
Avi Goldfarb, University of Toronto, Rotman School of Management
- Research Summary
Dissertation: Speaking Up on Boards
My dissertation examines individual and group behavior in corporate boards of directors. I focus on individual traits and group traits that can foster or inhibit the act of speaking up when an individuals views go against the general consensus in the room. Research and... View Details
- 21 Mar 2014
- Working Paper Summaries
Speaking of Corporate Social Responsibility
- 2017
- Working Paper
Intermediation in the Supply of Agricultural Products in Developing Economies
By: Kris J. Ferreira, Joel Goh and Ehsan Valavi
Problem Definition: Farmers face several challenges in agricultural supply chains in emerging economies that contribute to extreme levels of poverty. One common challenge is that farmers only have access to one channel, often an auction, for which to sell their crops.... View Details
Keywords: Developing Countries; Agricultural Supply Chain; Intermediation; Multiple Cahnels; Walrasian Auction; Developing Countries and Economies; Supply Chain; Distribution Channels; Profit; Agriculture and Agribusiness Industry
Ferreira, Kris J., Joel Goh, and Ehsan Valavi. "Intermediation in the Supply of Agricultural Products in Developing Economies." Harvard Business School Working Paper, No. 18-033, October 2017.