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Show Results For
- All HBS Web
(720)
- People (2)
- News (117)
- Research (533)
- Events (5)
- Multimedia (1)
- Faculty Publications (294)
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- June 2017
- Article
Does Aggregated Returns Disclosure Increase Portfolio Risk Taking?
By: John Beshears, James J. Choi, David Laibson and Brigitte C. Madrian
Many experiments have found that participants take more investment risk if they see returns less frequently, see portfolio-level returns (rather than each individual asset’s returns), or see long-horizon (rather than one-year) historical return distributions. In... View Details
Beshears, John, James J. Choi, David Laibson, and Brigitte C. Madrian. "Does Aggregated Returns Disclosure Increase Portfolio Risk Taking?" Review of Financial Studies 30, no. 6 (June 2017): 1971–2005.
- Research Summary
Physician vs. Patient Incentives in Prescription Drug Choice
The market for medical care involves interactions among patients, providers, and the insurers who pay for the care of their enrollees. The division of responsibilities creates scope for agency costs and moral hazard in the physician's treatment choice.... View Details
- 2025
- Working Paper
Evaluations Amid Measurement Error: Determining the Optimal Timing for Workplace Interventions
By: Matthew DosSantos DiSorbo, Iavor I. Bojinov and Fiammetta Menchetti
Researchers have embraced factorial experiments to simultaneously evaluate multiple treatments, each with different levels. Typically, in large-scale factorial experiments, the primary objective is identifying the treatment with the largest causal effect, especially... View Details
Keywords: Factorial Designs; Fisher Randomizations; Rank Estimators; Employer Interventions; Causal Inference; Mathematical Methods; Performance Improvement
DosSantos DiSorbo, Matthew, Iavor I. Bojinov, and Fiammetta Menchetti. "Evaluations Amid Measurement Error: Determining the Optimal Timing for Workplace Interventions." Harvard Business School Working Paper, No. 24-075, June 2024. (Revised May 2025.)
- April 2014
- Article
Awards Unbundled: Evidence from a Natural Field Experiment
By: Nava Ashraf, Oriana Bandiera and Scott S. Lee
Organizations often use non-monetary awards to incentivize performance. Awards may affect behavior through several mechanisms: by conferring employer recognition, by enhancing social visibility, and by facilitating social comparison. In a nationwide health worker... View Details
Keywords: Social Comparison; Awards; Optimal Expectactions; Zambia; Status and Position; Performance Expectations; Motivation and Incentives; Health Care and Treatment; Health Industry; Zambia
Ashraf, Nava, Oriana Bandiera, and Scott S. Lee. "Awards Unbundled: Evidence from a Natural Field Experiment." Journal of Economic Behavior & Organization 100 (April 2014): 44–63.
- December 2021
- Article
Trade Policy Uncertainty and Stock Returns
By: Marcelo Bianconi, Federico Esposito and Marco Sammon
A recent literature has documented large real effects of trade policy uncertainty (TPU) on trade, employment, and investment, but there is little evidence that investors are compensated for bearing such risk. To quantify the risk premium associated with TPU, we exploit... View Details
Keywords: Trade Policy; Uncertainty; Stock Returns; Risk Premium; Tariff Rates; Portfolio Analysis; Trade; Policy; Risk and Uncertainty; Stocks; Investment Return
Bianconi, Marcelo, Federico Esposito, and Marco Sammon. "Trade Policy Uncertainty and Stock Returns." Art. 102492. Journal of International Money and Finance 119 (December 2021).
- 2022
- Working Paper
A Linear Panel Model with Heterogeneous Coefficients and Variation in Exposure
By: Jesse M. Shapiro and Liyang Sun
Linear panel models featuring unit and time fixed effects appear in many areas of empirical economics. An active literature studies the interpretation of the ordinary least squares estimator of the model, commonly called the two-way fixed effects (TWFE) estimator, in... View Details
Shapiro, Jesse M., and Liyang Sun. "A Linear Panel Model with Heterogeneous Coefficients and Variation in Exposure." NBER Working Paper Series, No. 29976, April 2022.
- Article
Nudging: Progress to Date and Future Directions
By: John Beshears and Harry Kosowsky
Nudges influence behavior by changing the environment in which decisions are made, without restricting the menu of options and without altering financial incentives. This paper assesses past empirical research on nudging and provides recommendations for future work in... View Details
Keywords: Nudge; Choice Architecture; Behavioral Economics; Behavioral Science; Behavior; Change; Situation or Environment; Decision Choices and Conditions; Decision Making
Beshears, John, and Harry Kosowsky. "Nudging: Progress to Date and Future Directions." Organizational Behavior and Human Decision Processes 161, Supplement (November 2020): 3–19.
- 2014
- Other Unpublished Work
No Margin, No Mission? A Field Experiment on Incentives for Public Services Delivery
By: Nava Ashraf, Oriana Bandiera and Kelsey Jack
A substantial body of research investigates the effect of pay for performance in firms, yet less is known about the effect of non-financial rewards, especially in organizations that hire individuals to perform tasks with positive social spillovers. We conduct a field... View Details
Keywords: Incentives; Non-monetary Rewards; Intrinsic Motivation; Mission and Purpose; Social Enterprise; Motivation and Incentives
Ashraf, Nava, Oriana Bandiera, and Kelsey Jack. "No Margin, No Mission? A Field Experiment on Incentives for Public Services Delivery." (March 2014. Conditionally accepted, Journal of Public Economics.)
- July 2012
- Module Note
Corporate Strategy
By: Bharat N. Anand
This note provides an overview of strategies for multi-business firms. The note describes (i) what is meant by "corporate advantage," (ii) the different approaches that multi-business firms can pursue in order to create corporate advantage, (iii) the specific corporate... View Details
Keywords: Corporate Strategy
Anand, Bharat N. "Corporate Strategy." Harvard Business School Module Note 713-415, July 2012.
- Article
Marketing Complex Financial Products in Emerging Markets: Evidence from Rainfall Insurance in India
By: Sarthak Gaurav, Shawn A. Cole and Jeremy Tobacman
Recent financial liberalization in emerging economies has led to the rapid introduction of new financial products. Lack of experience with financial products, low levels of education, and low financial literacy may slow adoption of these products. This article reports... View Details
Keywords: Literacy; Insurance; Marketing; Decisions; Demand and Consumers; Financial Instruments; Emerging Markets; Education; Personal Finance; Agribusiness; Developing Countries and Economies; Innovation and Invention; Gujarat
Gaurav, Sarthak, Shawn A. Cole, and Jeremy Tobacman. "Marketing Complex Financial Products in Emerging Markets: Evidence from Rainfall Insurance in India." Journal of Marketing Research (JMR) 48, no. SPL (November 2011): S150–S162.
- September 2009
- Article
Spousal Control and Intra-Household Decision Making: An Experimental Study in the Philippines
By: Nava Ashraf
Using an experimental design I elicit causal effects of spousal observability and communication on financial choices of married individuals in the Philippines. Making choices public moves men from putting money into their own account to consumption; communication with... View Details
Keywords: Intra-household; Bargaining; Experiments; Economic Development; Saving; Governance Controls; Decision Choices and Conditions; Personal Finance; Family and Family Relationships; Household; Gender
Ashraf, Nava. "Spousal Control and Intra-Household Decision Making: An Experimental Study in the Philippines." American Economic Review 99, no. 4 (September 2009): 1245–1277. (Online Appendix.)
- April 1996 (Revised January 2006)
- Case
Times Mirror Company PEPS Proposal Review
By: Peter Tufano
Times Mirror Co. (TMC) owns a substantial block of Netscape common stock purchased prior to Netscape's IPO, on which it has substantial unrealized gains. TMC is restricted from selling the stock in a public offering and is therefore considering a proposal by Morgan... View Details
Keywords: Risk Management; Stocks; Taxation; Corporate Finance; Telecommunications Industry; Media and Broadcasting Industry; United States
Tufano, Peter, and Cameron Poetzscher. "Times Mirror Company PEPS Proposal Review." Harvard Business School Case 296-089, April 1996. (Revised January 2006.)
- May 2020
- Article
Negotiating a Better Future: How Interpersonal Skills Facilitate Inter-Generational Investment
By: Nava Ashraf, Natalie Bau, Corinne Low and Kathleen McGinn
Using a randomized control trial, we examine whether offering adolescent girls nonmaterial resources—specifically, negotiation skills—can improve educational outcomes in a low-income country. In so doing, we provide the first evidence on the effects of an intervention... View Details
Keywords: Negotiation; Competency and Skills; Training; Age; Gender; Education; Investment; Outcome or Result; Developing Countries and Economies
Ashraf, Nava, Natalie Bau, Corinne Low, and Kathleen McGinn. "Negotiating a Better Future: How Interpersonal Skills Facilitate Inter-Generational Investment." Quarterly Journal of Economics 135, no. 2 (May 2020): 1095–1151.
- December 2014
- Article
No Margin, No Mission? A Field Experiment on Incentives for Public Services Delivery
By: Nava Ashraf, Oriana Bandiera and B. Kelsey Jack
A substantial body of research investigates the effect of pay for performance in firms, yet less is known about the effect of non-financial rewards, especially in organizations that hire individuals to perform tasks with positive social spillovers. We conduct a field... View Details
Keywords: Incentives; Non-monetary Rewards; Intrinsic Motivation; Motivation and Incentives; Employees; Service Industry; Health Industry
Ashraf, Nava, Oriana Bandiera, and B. Kelsey Jack. "No Margin, No Mission? A Field Experiment on Incentives for Public Services Delivery." Journal of Public Economics 120 (December 2014): 1–17.
- 2021
- Working Paper
Proxy Advisory Firms and Corporate Shareholder Engagement
By: Aiyesha Dey, Joshua White and Austin Starkweather
We examine the influence of proxy advisors on firms’ shareholder engagement behavior. Our analyses exploit a quasi-natural experiment using Say-On-Pay voting outcomes near a threshold that triggers a review of engagement activities by Institutional Shareholder Services... View Details
Keywords: Proxy Advisors; ISS; Shareholder Engagement; Disclosure; Business and Shareholder Relations; Executive Compensation; Corporate Disclosure
Dey, Aiyesha, Joshua White, and Austin Starkweather. "Proxy Advisory Firms and Corporate Shareholder Engagement." Harvard Business School Working Paper, No. 21-137, June 2021. (Revised February 2022.)
- 2025
- Article
Emotion Regulation Contagion Drives Reduction in Negative Intergroup Emotions
By: Michael Pinus, Yajun Cao, Eran Halperin, Alin Coman, James J. Gross and Amit Goldenberg
When emotions occur in groups, they sometimes impact group behavior in undesired ways. Reducing group’s emotions with emotion regulation interventions can be helpful, but may also be a challenge, because treating every person in the group is often infeasible. One... View Details
Keywords: Emotion Contagion; Emotion; Emotion Regulation; Groups and Teams; Emotions; Conflict and Resolution
Pinus, Michael, Yajun Cao, Eran Halperin, Alin Coman, James J. Gross, and Amit Goldenberg. "Emotion Regulation Contagion Drives Reduction in Negative Intergroup Emotions." Art. 1387. Nature Communications 16 (2025).
- November 2014
- Case
Oasys Water: Balancing Strategic Partnerships & Financing Decisions
By: Ramana Nanda, William A. Sahlman and Sid Misra
Oasys Water had developed a proprietary water treatment technology based on an innovative forward osmosis process that could remove dissolved solids from water more effectively and efficiently than existing technologies. As Oasys looked to scale, it was exploring... View Details
Nanda, Ramana, William A. Sahlman, and Sid Misra. "Oasys Water: Balancing Strategic Partnerships & Financing Decisions." Harvard Business School Case 815-076, November 2014.
- March–April 2023
- Article
Pricing for Heterogeneous Products: Analytics for Ticket Reselling
By: Michael Alley, Max Biggs, Rim Hariss, Charles Herrmann, Michael Lingzhi Li and Georgia Perakis
Problem definition: We present a data-driven study of the secondary ticket market. In particular, we are primarily concerned with accurately estimating price sensitivity for listed tickets. In this setting, there are many issues including endogeneity, heterogeneity in... View Details
Keywords: Price; Demand and Consumers; AI and Machine Learning; Investment Return; Entertainment and Recreation Industry; Sports Industry
Alley, Michael, Max Biggs, Rim Hariss, Charles Herrmann, Michael Lingzhi Li, and Georgia Perakis. "Pricing for Heterogeneous Products: Analytics for Ticket Reselling." Manufacturing & Service Operations Management 25, no. 2 (March–April 2023): 409–426.
- April 2018
- Article
The Power of Voice in Stimulating Morality: Eliciting Taxpayer Preferences Increases Tax Compliance
By: Cait Lamberton, Jan-Emmanuel De Neve and Michael I. Norton
Decisions about paying taxes represent one of the most common moral quandaries faced by citizens. In the
present research, we argue that taxpayer compliance can be raised by increasing “voice”: allowing taxpayers
to express non-binding preferences about the way their... View Details
Keywords: Morality; Public Policy; Ethics; Moral Sensibility; Taxation; Policy; Attitudes; Governance Compliance
Lamberton, Cait, Jan-Emmanuel De Neve, and Michael I. Norton. "The Power of Voice in Stimulating Morality: Eliciting Taxpayer Preferences Increases Tax Compliance." Special Issue on Marketplace Morality. Journal of Consumer Psychology 28, no. 2 (April 2018): 310–328.
- June 2008
- Article
'Thar' She Blows: Can Bubbles Be Rekindled with Experienced Subjects?
By: Reshmaan Hussam, David Porter and Vernon Smith
We report 28 new experiment sessions consisting of up to three experience levels to examine the robustness of learning and “error” elimination among participants in a laboratory asset market and its effect on price bubbles. Our answer to the title question is: “yes.”... View Details
Hussam, Reshmaan, David Porter, and Vernon Smith. "'Thar' She Blows: Can Bubbles Be Rekindled with Experienced Subjects?" American Economic Review 98, no. 3 (June 2008): 924–937.