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Show Results For
- All HBS Web
(1,422)
- People (2)
- News (460)
- Research (635)
- Events (9)
- Multimedia (3)
- Faculty Publications (168)
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- March 2020
- Article
Diagnosing Missing Always at Random in Multivariate Data
By: Iavor I. Bojinov, Natesh S. Pillai and Donald B. Rubin
Models for analyzing multivariate data sets with missing values require strong, often assessable, assumptions. The most common of these is that the mechanism that created the missing data is ignorable—a twofold assumption dependent on the mode of inference. The first... View Details
Keywords: Missing Data; Diagnostic Tools; Sensitivity Analysis; Hypothesis Testing; Missing At Random; Row Exchangeability; Analytics and Data Science; Mathematical Methods
Bojinov, Iavor I., Natesh S. Pillai, and Donald B. Rubin. "Diagnosing Missing Always at Random in Multivariate Data." Biometrika 107, no. 1 (March 2020): 246–253.
- November 9, 2019
- Article
Effect of Revealing Authors' Conflicts of Interests in Peer Review: Randomized Controlled Trial
By: Leslie K. John, George Loewenstein, Andrew Marder and Michael Callaham
Objective: To assess the impact of disclosing authors’ conflict of interest declarations to peer reviewers at a medical journal.
Design: Randomised controlled trial.
Setting: The study was conducted within the manuscript review process at the... View Details
Design: Randomised controlled trial.
Setting: The study was conducted within the manuscript review process at the... View Details
Keywords: Conflicts Of Interest; Peer Review; Randomized Controlled Trial; Scientific Publication; Conflict of Interests; Journals and Magazines; Science
John, Leslie K., George Loewenstein, Andrew Marder, and Michael Callaham. "Effect of Revealing Authors' Conflicts of Interests in Peer Review: Randomized Controlled Trial." BMJ: British Medical Journal 367, no. 8221 (November 9, 2019).
- 2010
- Working Paper
Substitution Patterns of the Random Coefficients Logit
By: Thomas J. Steenburgh and Andrew Ainslie
Previous research suggests that the random coefficients logit is a highly flexible model that overcomes the problems of the homogeneous logit by allowing for differences in tastes across individuals. The purpose of this paper is to show that this is not true. We prove... View Details
Steenburgh, Thomas J., and Andrew Ainslie. "Substitution Patterns of the Random Coefficients Logit." Harvard Business School Working Paper, No. 10-053, January 2010.
- August 2007
- Article
Remedying Education: Evidence from Two Randomized Experiments in India
By: A. Banerjee, Shawn A. Cole, E. Duflo and L. Linden
This paper presents the results of two randomized experiments conducted in schools in urban India. A remedial education program hired young women to teach students lagging behind in basic literacy and numeracy skills. It increased average test scores of all children in... View Details
Banerjee, A., Shawn A. Cole, E. Duflo, and L. Linden. "Remedying Education: Evidence from Two Randomized Experiments in India." Quarterly Journal of Economics 122, no. 3 (August 2007): 1235–1264.
- 26 Mar 2013
- Working Paper Summaries
How Elastic Are Preferences for Redistribution? Evidence from Randomized Survey Experiments
- 2024
- Working Paper
The Effects of Medical Debt Relief: Evidence from Two Randomized Experiments
By: Raymond Kluender, Neale Mahoney, Francis Wong and Wesley Yin
Two in five Americans have medical debt, nearly half of whom owe at least $2,500. Concerned by this burden, governments and private donors have undertaken large, high-profile efforts to relieve medical debt. We partnered with RIP Medical Debt to conduct two randomized... View Details
Kluender, Raymond, Neale Mahoney, Francis Wong, and Wesley Yin. "The Effects of Medical Debt Relief: Evidence from Two Randomized Experiments." NBER Working Paper Series, No. 32315, April 2024.
- 21 Feb 2023
- Research & Ideas
What's Missing from the Racial Equity Dialogue?
highlight key considerations that aren’t at the forefront of today’s dialogue about racial discrimination and injustice. Here’s what they said: Broderick Turner: Anti-Black racism affects White people We do not connect the dots on how... View Details
Keywords: by Danielle Kost
- January 2025
- Case
Untapped Global: Financing Africa's Missing Middle
By: Raymond Kluender and Emanuele Colonnelli
In November 2024, Jim Chu, founder and CEO of Untapped Global, faced mounting internal tensions over the company’s strategic direction. Untapped had developed a data-driven revenue-based financing (RBF) model to address the “missing middle” problem—the $5.2 trillion... View Details
Keywords: Social Entrepreneurship; Venture Capital; Working Capital; Private Equity; Financial Strategy; Microfinance; International Finance; Currency Exchange Rate; Profit Sharing; Revenue; Developing Countries and Economies; Economic Growth; Emerging Markets; Mission and Purpose; Small Business; Entrepreneurial Finance; Banking Industry; Financial Services Industry; Information Technology Industry; Technology Industry; Africa; Nigeria; South Africa; Kenya; Uganda; California; San Francisco
Kluender, Raymond, and Emanuele Colonnelli. "Untapped Global: Financing Africa's Missing Middle." Harvard Business School Case 825-056, January 2025.
- 24 Sep 2008
- Working Paper Summaries
CEO and CFO Career Penalties to Missing Quarterly Analysts Forecasts
- 2021
- Working Paper
Cognitive Biases: Mistakes or Missing Stakes?
By: Benjamin Enke, Uri Gneezy, Brian Hall, David Martin, Vadim Nelidov, Theo Offerman and Jeroen van de Ven
Despite decades of research on heuristics and biases, empirical evidence on the effect of large incentives—as present in relevant economic decisions—on cognitive biases is scant. This paper tests the effect of incentives on four widely documented biases: base rate... View Details
Enke, Benjamin, Uri Gneezy, Brian Hall, David Martin, Vadim Nelidov, Theo Offerman, and Jeroen van de Ven. "Cognitive Biases: Mistakes or Missing Stakes?" Harvard Business School Working Paper, No. 21-102, March 2021.
- Article
Applying Random Coefficient Models to Strategy Research: Identifying and Exploring Firm Heterogeneous Effects
By: Juan Alcácer, Wilbur Chung, Ashton Hawk and Gonçalo Pacheco-de-Almeida
Strategy aims at understanding the differential effects of firms’ actions on performance. However, standard regression models estimate only the average effects of these actions across firms. Our paper discusses how random coefficient models (RCMs) may generate new... View Details
Alcácer, Juan, Wilbur Chung, Ashton Hawk, and Gonçalo Pacheco-de-Almeida. "Applying Random Coefficient Models to Strategy Research: Identifying and Exploring Firm Heterogeneous Effects." Strategy Science 3, no. 3 (September 2018): 481–553.
- 21 Oct 2013
- Research & Ideas
Missing the Wave in Ship Transport
Like investing in a mansion when the real-estate market is at its peak, buying a dry bulk ship in a boom time is a terrible long-term investment, according to new research that predicts cycles in the shipping industry. The contrarian... View Details
- 2008
- Working Paper
CEO and CFO Career Penalties to Missing Quarterly Analysts Forecasts
By: Rick Mergenthaler, Shiva Rajgopal and Suraj Srinivasan
We find that missing the quarterly analyst consensus earnings forecast is associated with career penalties in the form of a reduced bonus, smaller equity grants, and a greater chance of forced dismissal for both CEOs and CFOs during the period 1993-2004. These results... View Details
Keywords: Earnings Management; Governing and Advisory Boards; Compensation and Benefits; Managerial Roles; Personal Development and Career
Mergenthaler, Rick, Shiva Rajgopal, and Suraj Srinivasan. "CEO and CFO Career Penalties to Missing Quarterly Analysts Forecasts." Harvard Business School Working Paper, No. 09-014, August 2008. (Revised June 2009.)
- 2011
- Working Paper
Price Competition under Multinomial Logit Demand Functions with Random Coefficients
In this paper, we postulate a general class of price competition models with Mixed Multinomial Logit demand functions under affine cost functions. We first characterize the equilibrium behavior of this class of models in the case where each product in the market is... View Details
Keywords: Customers; Income Characteristics; Price; Product Marketing; Mathematical Methods; Competition; Segmentation
Allon, Gad, Awi Federgruen, and Margaret Pierson. "Price Competition under Multinomial Logit Demand Functions with Random Coefficients." Harvard Business School Working Paper, No. 12-030, October 2011.
- 2017
- Article
The Impact of Training Informal Healthcare Providers in India: A Randomized Controlled Trial
By: Jishnu Das, Abhijit Chowdhury, Reshmaan Hussam and Abhijit Banerjee
Health care providers without formal medical qualifications provide more than 70% of all primary care in rural India. Training these informal providers may be one way to improve the quality of care where few alternatives exist. We report on a randomized controlled... View Details
Keywords: Health Care; India; Business Training; RCT; Health Care and Treatment; Training; Performance Evaluation; Performance Improvement; India
Das, Jishnu, Abhijit Chowdhury, Reshmaan Hussam, and Abhijit Banerjee. "The Impact of Training Informal Healthcare Providers in India: A Randomized Controlled Trial." Science 354, no. 6308 (October 7, 2016): 80.
- Article
Effect of Different Financial Incentive Structures on Promoting Physical Activity Among Adults: A Randomized Clinical Trial
By: Chethan Bachireddy, Andrew Joung, Leslie K. John, Francesca Gino, Bradford Tuckfield, Luca Foschini and Katherine L. Milkman
Importance: Few adults engage in recommended levels of physical activity. Financial incentives can promote physical activity, but little is known about how their structure influences their effectiveness; for example, whether incentives are more effective if they are... View Details
Bachireddy, Chethan, Andrew Joung, Leslie K. John, Francesca Gino, Bradford Tuckfield, Luca Foschini, and Katherine L. Milkman. "Effect of Different Financial Incentive Structures on Promoting Physical Activity Among Adults: A Randomized Clinical Trial." JAMA Network Open 2, no. 8 (August 2019): 1–13.
- May 18, 2012
- Article
Randomized Government Safety Inspections Reduce Worker Injuries with No Detectable Job Loss
By: David I Levine, Michael W. Toffel and Matthew S. Johnson
Controversy surrounds occupational health and safety regulators, with some observers claiming that workplace regulations damage firms' competitiveness and destroy jobs and others arguing that they make workplaces safer at little cost to employers and employees. We... View Details
Keywords: Regulation; Occupational Safety; Evaluation; Regression; Matching; Difference In Differences; Safety; Health; Working Conditions; Governing Rules, Regulations, and Reforms; Competitive Advantage; Performance; Manufacturing Industry; California
Levine, David I., Michael W. Toffel, and Matthew S. Johnson. "Randomized Government Safety Inspections Reduce Worker Injuries with No Detectable Job Loss." Science 336, no. 6083 (May 18, 2012): 907–911. (Online supplement (appendix). Featured in an article by the head of US OSHA, and in U.S. News & World Report and many other news outlets. Basis of U.S. Congressional testimony on promoting safe workplaces.)
- 08 Feb 2018
- Op-Ed
What’s Missing From the Debate About Trump’s Tax Plan
especially on entitlements. In other words, this plan is a standard push toward a smaller government and a less constrained market. Second, the plan’s supporters believe fairness in tax policy depends on how much people pay rather than on how much people end up with.... View Details
Keywords: by Matthew Weinzierl
- Article
Weak Corporate Insolvency Rules: The Missing Driver of Zombie Lending
By: Bo Becker and Victoria Ivashina
"Zombie lending"—lending to less-productive firms at subsidized rates—can help banks with misaligned incentives in the short run, but it prolongs economic downturns. We propose that inefficient resolution of insolvency is a significant contributor to this problem. We... View Details
Keywords: Zombie Credit; Insolvency and Bankruptcy; Financing and Loans; Economic Slowdown and Stagnation
Becker, Bo, and Victoria Ivashina. "Weak Corporate Insolvency Rules: The Missing Driver of Zombie Lending." AEA Papers and Proceedings 112 (May 2022): 516–520.
- January 2017
- Article
Impact Evaluation Methods in Public Economics: A Brief Introduction to Randomized Evaluations and Comparison with Other Methods
By: Dina Pomeranz
Recent years have seen a large expansion in the use of rigorous impact evaluation techniques. Increasingly, public administrations are collaborating with academic economists and other quantitative social scientists to apply such rigorous methods to the study of public... View Details
Pomeranz, Dina. "Impact Evaluation Methods in Public Economics: A Brief Introduction to Randomized Evaluations and Comparison with Other Methods." Special Issue on Expanding the Frontier of Behavioral Public Economics. Public Finance Review 45, no. 1 (January 2017): 10–43. (Published early online November 5, 2015. Spanish version available by clicking on "Details.")