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- 2022
- Working Paper
Retail Investors’ Contrarian Behavior Around News, Attention, and the Momentum Effect
By: Cheng (Patrick) Luo, Enrichetta Ravina, Marco Sammon and Luis M. Viceira
Using a large panel of U.S. brokerage accounts trades and positions, we show that a large fraction of retail investors trade as contrarians after large earnings surprises, especially for loser stocks, and that such contrarian trading contributes to post earnings...
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- 2021
- Working Paper
The Luck of the Draw: The Causal Effect of Physicians on Birth Outcomes
By: Arlen Guarin, Christian Posso, Estefania Saravia and Jorge Tamayo
Identifying the effect of physicians’ skills on health outcomes is a challenging task due to the nonrandom sorting between physicians and hospitals. We overcome this challenge by exploiting a Colombian government program that randomly assigned 2,126 physicians to 618...
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- 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...
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- Article
A Megastudy of Text-Based Nudges Encouraging Patients to Get Vaccinated at an Upcoming Doctor's Appointment
By: Katherine L. Milkman, Mitesh S. Patel, Linnea Gandhi, Heather N. Graci, Dena M. Gromet, Hung Ho, Joseph S. Kay, Timothy W. Lee, Modupe Akinola, John Beshears, Jonathan E. Bogard, Alison Buttenheim, Christopher F. Chabris, Gretchen B. Chapman, James J. Choi, Hengchen Dai, Craig R. Fox, Amir Goren, Matthew D. Hilchey, Jillian Hmurovic, Leslie K. John, Dean Karlan, Melanie Kim, David Laibson, Cait Lamberton, Brigitte C. Madrian, Michelle N. Meyer, Maria Modanu, Jimin Nam, Todd Rogers, Renante Rondina, Silvia Saccardo, Maheen Shermohammed, Dilip Soman, Jehan Sparks, Caleb Warren, Megan Weber, Ron Berman, Chalanda N. Evans, Christopher K. Snider, Eli Tsukayama, Christophe Van den Bulte, Kevin G. Volpp and Angela L. Duckworth
Many Americans fail to get life-saving vaccines each year, and the availability of a vaccine for COVID-19 makes the challenge of encouraging vaccination more urgent than ever. We present a large field experiment (N = 47,306) testing 19 nudges delivered to patients via...
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Keywords:
Vaccination;
COVID-19;
Nudge;
Influenza;
Field Experiment;
Health;
Communication Strategy;
Behavior
- March 12, 2021
- Article
Is Your C-Suite Equipped to Lead a Digital Transformation?
By: J. Yo-Jud Cheng, Cassandra Frangos and Boris Groysberg
The pandemic has rapidly accelerated many companies’ digital efforts, but do they have the right executives in place to lead this sort of transformation? To answer this question, the authors analyzed more than 100 search specifications for C-suite positions in Fortune...
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- March 2021 (Revised December 2021)
- Case
Cedar Environmental: Innovation vs. Corruption in Lebanon?
By: Nien-hê Hsieh and Youssef Abdel Aal
The case follows Ziad Abi Chaker, founder and CEO of Cedar Environmental, as he weighs options for how to grow the company in the face of growing economic and political instability in Lebanon in 2019.
Founded after the Lebanese civil war, Cedar... View Details
Founded after the Lebanese civil war, Cedar... View Details
Keywords:
Waste Management;
Recycling;
Corruption;
Leadership & Corporate Accountability;
Business And Government;
Social Entrepreneurship;
Environmental Sustainability;
Green Technology;
Pollution;
Entrepreneurship;
Business and Government Relations;
Crime and Corruption;
Technological Innovation;
Growth and Development Strategy;
Business Strategy;
Expansion;
Corporate Accountability;
Green Technology Industry;
Middle East;
Lebanon
- 2021
- Working Paper
Housing Consumption and the Cost of Remote Work
By: Christopher Stanton and Pratyush Tiwari
This paper estimates housing choice differences between households with and without remote workers. Prior to the pandemic, the expenditure share on housing was more than seven percent higher for remote households compared to similar non-remote households in the same...
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- December 2020 (Revised December 2022)
- Case
The Dance of Dharma: On the Difficulty of Being Good
By: Arthur I. Segel and Tyler M. Richard
When deciding how to be good and act well, we often seek outside help. Many of our oldest and most frequently consulted sources of ethical guidance are our religious traditions. Just as one might consult a thoughtful friend, countless people seek direction from their...
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- Fall 2020
- Article
Business Credit Programs in the Pandemic Era
By: Samuel G. Hanson, Jeremy C. Stein, Adi Sunderam and Eric Zwick
We develop a pair of models that speak to the goals and design of the sort of business-lending and corporate-bond purchase programs that have been introduced by governments in response to the ongoing COVID-19 pandemic. An overarching theme is that, in contrast to the...
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- July 2020
- Article
Recovering the Logic of Double Effect for Business: Intentions, Proportionality, and Impermissible Harms
By: Rosemarie Monge and Nien-hê Hsieh
Business actors often act in ways that may harm other parties. While the law aims to restrict harmful behavior and to provide remedies, legal systems do not anticipate all contingencies and legal regulations are not always well enforced. This article argues that the...
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Keywords:
Double Effect;
Intention;
Exploitation;
Risk;
Practical Ethics;
Competition;
Risk and Uncertainty;
Ethics
- May 8, 2020
- Article
Which Covid-19 Data Can You Trust?
By: Satchit Balsari, Caroline Buckee and Tarun Khanna
The COVID-19 pandemic has produced a tidal wave of data, but how much of it is any good? And as a layperson, how can you sort the good from the bad? The authors suggest a few strategies for dividing the useful data from the misleading: Beware of data that’s too broad...
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- 2020
- Working Paper
No Line Left Behind: Assortative Matching Inside the Firm
By: Achyuta Adhvaryu, Vittorio Bassi, Anant Nyshadham and Jorge Tamayo
How do firms pair workers with managers, and which constraints affect the allocation of labor within the firm? We characterize the sorting pattern of managers to workers in a large readymade garment manufacturer in India and then explore potential drivers of the...
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- December 2019
- Article
Costly Concessions: An Empirical Framework for Matching with Imperfectly Transferable Utility
By: Alfred Galichon, Scott Duke Kominers and Simon Weber
We introduce an empirical framework for models of matching with imperfectly transferable utility and unobserved heterogeneity in tastes. Our framework allows us to characterize matching equilibrium in a flexible way that includes as special cases the classic fully- and...
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- March–April 2019
- Article
The Future of Leadership Development
By: Das Narayandas and Mihnea Moldoveanu
The need for leadership development has never been more urgent. Companies of all sorts realize that to survive in today’s volatile, uncertain, complex, and ambiguous environment, they need different leadership skills and organizational capabilities from those that...
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- February 2019
- Case
Canibal—Play It Green!
By: Frank V. Cespedes, Joseph B. Fuller, Tonia Labruyere and Elena Corsi
In 2011, Canibal launched a machine that could sort and compress aluminum cans, plastic bottles, and cups. Users could play a jackpot-style game on the machine’s digital display, while disposing of their beverage containers and earning coupons or other rewards. The...
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- January 2019 (Revised January 2022)
- Case
Chinese Infrastructure Investments in Sri Lanka: A Pearl or a Teardrop on the Belt and Road?
By: Meg Rithmire and Yihao Li
In 2015, a surprise presidential election result seemed to imperil Chinese investments in Sri Lanka, which were associated with China’s Belt and Road Initiative to build global infrastructure. In the previous decade, China had undertaken two major projects in the...
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- January 2019 (Revised December 2020)
- Case
Angola Starts Now
By: Jeremy Friedman and Sophus A. Reinert
After five centuries of colonialism, four decades of civil war, an extended experiment with Marxism-Leninism, and nearly four decades of rule by a single man, José Eduardo Dos Santos, Angola finally has a chance to realize its enormous economic potential. A country...
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- Fall 2018
- Article
What Problems Will You Solve with Blockchain?: Before Jumping on the Bandwagon, Companies Need to Carefully Consider how Ledger Technologies Fit into their Overall Strategy
By: Teppo Felin and Karim R. Lakhani
Distributed ledger technologies — collectively known as blockchain — have burst onto the business scene, accompanied by a significant amount of hype.They are widely expected to disrupt existing industries and lead to the creation of new types of companies. Some of the...
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- Editorial
Elon Musk's Unusual Compensation Plan Isn't Really About Compensation at All
By: George Serafeim
Earlier this year, Tesla shareholders approved likely the largest compensation package ever awarded to a CEO—for a CEO who clearly doesn’t need the money. Elon Musk is already incredibly rich and also doesn’t seem particularly motivated by further wealth. So why do it?...
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- 2020
- Working Paper
The Impact of CEOs in the Public Sector: Evidence from the English NHS
By: Katharina Janke, Carol Propper and Raffaella Sadun
Abstract
Governments worldwide have sought to reform the delivery of public services by mimicking private sector governance models that grant CEOs greater autonomy and give them responsibility for meeting key government targets. We examine the effectiveness of this...
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