Publications

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... View Details

Keywords: Vaccination; COVID-19; Nudge; Influenza; Field Experiment; Health; Communication Strategy; Behavior

2022
Working Paper

Optimal Illiquidity

By: John Beshears, James J. Choi, Christopher Clayton, Christopher Harris, David Laibson and Brigitte C. Madrian

We calculate the socially optimal level of illiquidity in an economy populated by households with taste shocks and naive present bias. The government chooses mandatory contributions to accounts, each witha different pre-retirement withdrawal penalty. Collected... View Details

Keywords: Illiquidity; Commitment; Flexibility; Savings; Social Security; Retirement; Government Legislation; Taxation; Saving

March 2020
Article

Which Early Withdrawal Penalty Attracts the Most Deposits to a Commitment Savings Account?

By: John Beshears, James J. Choi, Christopher Harris, David Laibson, Brigitte C. Madrian and Jung Sakong

Previous research has shown that some people voluntarily use commitment contracts that restrict their own choice sets. We study how people divide money between two accounts: a liquid account that permits unrestricted withdrawals and a commitment account that is... View Details

Keywords: Quasi-hyperbolic Discounting; Present Bias; Sophistication; Naiveté; Commitment; Flexibility; Savings; Contract Design; Defined Contribution Retirement Plan; 401 (K); IRA; Saving; Behavior; Contracts; Design; Interest Rates

July 31, 2017
Article

A Commitment Contract to Achieve Virologic Suppression in Poorly Adherent Patients with HIV/AIDS

By: Marcella Alsan, John Beshears, Wendy S. Armstrong, James J. Choi, Brigitte C. Madrian, Minh Ly T. Nguyen, Carlos Del Rio, David Laibson and Vincent C. Marconi

Objective: Assess whether a commitment contract informed by behavioral economics leads to persistent virologic suppression among HIV-positive patients with poor antiretroviral therapy (ART) adherence. Design: Single-center pilot randomized clinical trial and a... View Details

Keywords: Adherence; Antiretroviral Therapy; Behavioral Economics; Commitment Contract; Financial Incentives; HIV-1 Virologic Suppression; Health Disorders; Motivation and Incentives

June 2016
Article

Vaccination Rates Are Associated with Functional Proximity but Not Base Proximity of Vaccination Clinics

By: John Beshears, James J. Choi, David Laibson, Brigitte C. Madrian and Gwendolyn I. Reynolds

Background: Routine annual influenza vaccinations are recommended for persons 6 months of age and older, but less than half of U.S. adults get vaccinated. Many employers offer employees free influenza vaccinations at workplace clinics, but even then take-up is... View Details

Keywords: Geographic Location; Employees; Health Care and Treatment

August 2014
Article

What Makes Annuitization More Appealing?

By: John Beshears, James J. Choi, David Laibson, Brigitte C. Madrian and Stephen P. Zeldes

We conduct and analyze two large surveys of hypothetical annuitization choices. We find that allowing individuals to annuitize a fraction of their wealth increases annuitization relative to a situation where annuitization is an "all or nothing" decision. Very few... View Details

Keywords: Annuity; Pension; Retirement Income; Framing; Annuities; Retirement

Article

Consumers' Misunderstanding of Health Insurance

By: George Loewenstein, Joelle Y. Friedman, Barbara McGill, Sarah Ahmad, Suzanne Linck, Stacey Sinkula, John Beshears, James J. Choi, Jonathan Kolstad, David Laibson, Brigitte C. Madrian, John A. List and Kevin G. Volpp

We report results from two surveys of representative samples of Americans with private health insurance. The first examines how well Americans understand, and believe they understand, traditional health insurance coverage. The second examines whether those insured... View Details

Keywords: Behavioral Economics; Simplification; Insurance; Consumer Behavior; Health Care and Treatment; Cognition and Thinking; Insurance Industry; Health Industry; United States

Forthcoming
Article

Optimal Illiquidity

By: John Beshears, James J. Choi, Christopher Clayton, Christopher Harris, David Laibson and Brigitte C. Madrian

We study the socially optimal level of illiquidity in an economy populated by households with taste shocks and present bias with naive beliefs. The government chooses mandatory contributions to accounts, each with a different pre-retirement withdrawal penalty.... View Details

Keywords: Retirement; Financial Liquidity; Personal Finance; Saving