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Show Results For
- All HBS Web
(12,520)
- People (96)
- News (4,331)
- Research (4,045)
- Events (80)
- Multimedia (275)
- Faculty Publications (2,562)
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- 2007
- Working Paper
How Is Foreign Aid Spent? Evidence from a Natural Experiment
By: Eric D. Werker, Faisal Z. Ahmed and Charles Cohen
We use oil price fluctuations to construct a new instrument to test the impact of transfers from wealthy OPEC nations to their poorer Muslim allies. The instrument identifies plausibly exogenous variation in foreign aid. We investigate how aid is spent by tracking its... View Details
Werker, Eric D., Faisal Z. Ahmed, and Charles Cohen. "How Is Foreign Aid Spent? Evidence from a Natural Experiment." Harvard Business School Working Paper, No. 07-074, April 2007. (Revised December 2007, July 2008.)
- 2003
- Other Unpublished Work
The Development of the Cluster Concept—Present Experiences and Recent Developments
By: Christian H.M. Ketels
This review presents an overview of the current research on clusters and cluster-based economic development. It is organized in three parts: First, it takes a look at the conceptual foundations of the cluster approach, discussing the definition of clusters, the... View Details
Keywords: Growth and Development Strategy; Industry Clusters; Development Economics; Performance; Framework; Knowledge Sharing; Policy
Ketels, Christian H.M. "The Development of the Cluster Concept—Present Experiences and Recent Developments." Germany, North Rhine-Westphalia, Ministry of Economic Affairs and Energy, Dusseldorf, Germany, December 2003.
- Article
All Eyes on Them: A Field Experiment on Citizen Oversight and Electoral Integrity
By: Natalia Garbiras-Díaz and Mateo Montenegro
Can information and communication technologies help citizens monitor their elections? We analyze a large-scale field experiment designed to answer this question in Colombia. We leveraged Facebook advertisements sent to over 4 million potential voters to encourage... View Details
Keywords: Social Influence; Electoral Behavior; Election Outcomes; Economics; Economy; Governance; Government and Politics; Social Media; Social Marketing; Society; Political Elections; Advertising
Garbiras-Díaz, Natalia, and Mateo Montenegro. "All Eyes on Them: A Field Experiment on Citizen Oversight and Electoral Integrity." American Economic Review 112, no. 8 (August 2022): 2631–2668.
- 2024
- Working Paper
Do Collusive Norms Maximize Profits? Evidence From a Vegetable Market Experiment in India
By: Abhijit Banerjee, Greg Fischer, Dean Karlan, Matt Lowe and Benjamin N. Roth
Social norms have been shown to facilitate anti-competitive behavior in decentralized markets.
We demonstrate that these norms can also reduce aggregate profits. First, we present
descriptive evidence of competition-suppressing norms in Kolkata vegetable markets.... View Details
Banerjee, Abhijit, Greg Fischer, Dean Karlan, Matt Lowe, and Benjamin N. Roth. "Do Collusive Norms Maximize Profits? Evidence From a Vegetable Market Experiment in India." Harvard Business School Working Paper, No. 23-006, July 2022. (Revise and Resubmit, AEJ: Applied.)
- Research Summary
What Makes the Bonding Stick? A Natural Experiment Testing the Legal Bonding Hypothesis
On March 29, 2010, the U.S. Supreme Court signaled its intention to geographically limit the reach of the U.S. securities antifraud regime and thus differentially exclude U.S.-listed foreign firms from the ambit of formal U.S. antifraud enforcement. We use this legal... View Details
- 30 Jul 2009
- Working Paper Summaries
Fluid Teams and Fluid Tasks: The Impact of Team Familiarity and Variation in Experience
- July 2023
- Article
So, Who Likes You? Evidence from a Randomized Field Experiment
By: Ravi Bapna, Edward McFowland III, Probal Mojumder, Jui Ramaprasad and Akhmed Umyarov
With one-third of marriages in the United States beginning online, online dating platforms have become important curators of the modern social fabric. Prior work on online dating has elicited two critical frictions in the heterosexual dating market. Women, governed by... View Details
Keywords: Online Dating; Internet and the Web; Analytics and Data Science; Gender; Emotions; Social and Collaborative Networks
Bapna, Ravi, Edward McFowland III, Probal Mojumder, Jui Ramaprasad, and Akhmed Umyarov. "So, Who Likes You? Evidence from a Randomized Field Experiment." Management Science 69, no. 7 (July 2023): 3939–3957.
- 2015
- Chapter
International Migration and U.S. Innovation: Insights from the U.S. Experience
By: William R. Kerr
Kerr, William R. "International Migration and U.S. Innovation: Insights from the U.S. Experience." In Routledge Handbook of Immigration and Refugee Studies, edited by Anna Triandafyllidou, 82–87. Routledge, 2015.
- July 2009
- Article
How Is Foreign Aid Spent? Evidence from a Natural Experiment
By: Eric D. Werker, Faisal Z. Ahmed and Charles Cohen
We use oil price fluctuations to test the impact of transfers from wealthy OPEC nations to their poorer Muslim allies. The instrument identifies plausibly exogenous variation in foreign aid. We investigate how aid is spent by tracking its short-run effect on aggregate... View Details
Werker, Eric D., Faisal Z. Ahmed, and Charles Cohen. "How Is Foreign Aid Spent? Evidence from a Natural Experiment." American Economic Journal: Macroeconomics 1, no. 2 (July 2009): 225–244. (Reprinted in Geopolitics of Foreign Aid, ed. Helen Milner and Dustin Tingley. Northampton: Edward Elgar, 2013.)
- 1999
- Working Paper
Marshall Field, 1834-1906: The Retail Brand as a Customer Experience
By: Nancy F. Koehn
- 2017
- Working Paper
Will a Five-Minute Discussion Change Your Mind? A Countrywide Experiment on Voter Choice in France
By: Vincent Pons
This paper provides the first estimate of the effect of door-to-door canvassing on actual electoral outcomes, via a countrywide experiment embedded in François Hollande's campaign in the 2012 French presidential election. While existing experiments randomized... View Details
Pons, Vincent. "Will a Five-Minute Discussion Change Your Mind? A Countrywide Experiment on Voter Choice in France." Harvard Business School Working Paper, No. 16-079, January 2016. (American Economic Review (forthcoming).)
- Article
Measuring the Scientific Effectiveness of Contact Tracing: Evidence from a Natural Experiment
By: Thiemo Fetzer and Thomas Graeber
Contact tracing has for decades been a cornerstone of the public health approach to epidemics, including Ebola, severe acute respiratory syndrome, and now COVID-19. It has not yet been possible, however, to causally assess the method’s effectiveness using a randomized... View Details
Fetzer, Thiemo, and Thomas Graeber. "Measuring the Scientific Effectiveness of Contact Tracing: Evidence from a Natural Experiment." Proceedings of the National Academy of Sciences 118, no. 33 (August 17, 2021): 1–4.
- 2014
- Working Paper
Don't Take 'No' for an Answer: An Experiment with Actual Organ Donor Registrations
By: Judd B. Kessler and Alvin E. Roth
Over 10,000 people in the U.S. die each year while waiting for an organ. Attempts to increase organ transplantation have focused on changing the registration question from an opt-in frame to an active choice frame. We analyze this change in California and show it... View Details
Keywords: Decision Choices and Conditions; Health Care and Treatment; Philanthropy and Charitable Giving; Health Industry
Kessler, Judd B., and Alvin E. Roth. "Don't Take 'No' for an Answer: An Experiment with Actual Organ Donor Registrations." NBER Working Paper Series, No. 20378, August 2014.
- 2023
- Working Paper
Efficient Discovery of Heterogeneous Quantile Treatment Effects in Randomized Experiments via Anomalous Pattern Detection
By: Edward McFowland III, Sriram Somanchi and Daniel B. Neill
In the recent literature on estimating heterogeneous treatment effects, each proposed method makes its own set of restrictive assumptions about the intervention’s effects and which subpopulations to explicitly estimate. Moreover, the majority of the literature provides... View Details
Keywords: Causal Inference; Program Evaluation; Algorithms; Distributional Average Treatment Effect; Treatment Effect Subset Scan; Heterogeneous Treatment Effects
McFowland III, Edward, Sriram Somanchi, and Daniel B. Neill. "Efficient Discovery of Heterogeneous Quantile Treatment Effects in Randomized Experiments via Anomalous Pattern Detection." Working Paper, 2023.
- 2024
- Working Paper
Does Pension Automatic Enrollment Increase Debt? Evidence from a Large-Scale Natural Experiment
By: John Beshears, Matthew Blakstad, James J. Choi, Christopher Firth, John Gathergood, David Laibson, Richard Notley, Jesal D. Sheth, Will Sandbrook and Neil Stewart
Does automatic enrollment into retirement saving increase household debt? We study the randomized roll-out of automatic enrollment pensions to ~160,000 employers in the United Kingdom with 2-29 employees. We find that the additional savings generated through automatic... View Details
Keywords: Retirement; Saving; Personal Finance; Borrowing and Debt; Credit; Compensation and Benefits
Beshears, John, Matthew Blakstad, James J. Choi, Christopher Firth, John Gathergood, David Laibson, Richard Notley, Jesal D. Sheth, Will Sandbrook, and Neil Stewart. "Does Pension Automatic Enrollment Increase Debt? Evidence from a Large-Scale Natural Experiment." Working Paper, October 2024.
- June 2018
- Article
Will a Five-Minute Discussion Change Your Mind? A Countrywide Experiment on Voter Choice in France
By: Vincent Pons
This paper provides the first estimate of the effect of door-to-door canvassing on actual electoral outcomes, via a countrywide experiment embedded in François Hollande's campaign in the 2012 French presidential election. While existing experiments randomized... View Details
Pons, Vincent. "Will a Five-Minute Discussion Change Your Mind? A Countrywide Experiment on Voter Choice in France." American Economic Review 108, no. 6 (June 2018): 1322–1363. (Also Harvard Business School Working Paper, No. 16-079, January 2016.)
- 19 Jun 2017
- Working Paper Summaries
Learning to Manage: A Field Experiment in the Indian Startup Ecosystem
- 29 Mar 2016
- Working Paper Summaries
Do CEO Activists Make a Difference? Evidence from a Field Experiment
- Research Summary
Team, Individual, and Organizational Learning From Experience in Two High-Hazard Industries
High-hazard industries such as nuclear power and chemical process plants must learn and improve without sole reliance on trial-and-error. Considerable attention and resources are placed on learning from operating experience, including exchange of best practices, peer... View Details
- Article
Experience Curves and Dynamic Demand Models: Implications for Optimal Pricing Strategies
By: Robert J. Dolan
Dolan, Robert J. "Experience Curves and Dynamic Demand Models: Implications for Optimal Pricing Strategies." Journal of Marketing 45, no. 1 (Winter 1981).