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Delivery worker wearing a medical mask and carrying packages.
Feature: The Impact of State Paid Sick Leave Laws on Service Workers

Daniel Schneider finds that state paid sick leave laws increased service workers’ access to paid sick leave and reduced the share of service workers who worked while sick.

A family with a father, mother, and two small children walking on a dirt path.
Feature: Connecting Absolute and Relative Intergenerational Mobility

Deirdre Bloome offers two frameworks for understanding the relationship between types of intergenerational mobility, or whether people are socioeconomically better off than their parents.

Two women in rural India dressed colorfully and carrying baskets on their heads.
Feature: Studying a Government Program to Support Women’s Self-Help Groups

Michael Walton explores the interactions between state and society in rural India within a major community-based development program, finding two major tensions.

A network of computer motherboards and other parts assembled to look like a miniature city.
Feature: The Data-Informed City

Jorrit de Jong presents a comprehensive framework for how cities can use data to address problems more effectively, efficiently, equitably, and with better accountability.

Harvard Kennedy School faculty disseminate their research in working publications and papers that contribute to public knowledge and fuel policy innovation. This list features recent faculty publications, including journal articles, books, edited volumes, research papers, and public testimony.

Faculty Publications

Dynamic Persuasion: Decay and Accumulation of Partisan Media Persuasion

Baum, Matthew A., Adam J. Berinsky, Justin de Benedictis-Kessner, Joohye Jeong, Zachary Markovich, and Teppei Yamamoto. "Dynamic Persuasion: Decay and Accumulation of Partisan Media Persuasion." March 2025.

Learning not cheating: AI assistance can enhance rather than hinder skill development

Lira, Benjamin, Todd Rogers, Daniel G. Goldstein, Lyle Ungar, and Angela L. Duckworth. "Learning not cheating: AI assistance can enhance rather than hinder skill development." 22 February 2025.

A Simple, Statistically Robust Test of Discrimination

Gaebler, Johann D., and Sharad Goel. "A Simple, Statistically Robust Test of Discrimination." 9 July 2024.

Local Money: Evaluating the Effects of Municipal Campaign Contributions on Housing Policy Outcomes

Gaudette, Jennifer, and Justin de Benedictis-Kessner. "Local Money: Evaluating the Effects of Municipal Campaign Contributions on Housing Policy Outcomes." April 23, 2024.

Auditing the Use of Language Models to Guide Hiring Decisions

Gaebler, Johann D., Sharad Goel, Aziz Huq, Prasanna Tambe. "Auditing the Use of Language Models to Guide Hiring Decisions." April 3, 2024.

The Electoral and Policy Effects of Election Timing in City and County Government

de Benedictis Kessner, Justin. "The Electoral and Policy Effects of Election Timing in City and County Government." December 23, 2023.

Where the Sidewalk Ends: How Participation Contributes to Inequity in Basic Government Service Provision

de Benedictis Kessner, Justin. "Where the Sidewalk Ends: How Participation Contributes to Inequity in Basic Government Service Provision." December 23, 2023.

Reconciling Legal and Empirical Conceptions of Disparate Impact

Grossman, Joshua, Julian Nyarko, and Sharad Goel. "Reconciling Legal and Empirical Conceptions of Disparate Impact." .

Algorithmic recommendations have limited effects on polarization: A naturalistic experiment on YouTube

Liu, Naijia, Matthew A. Baum, Adam J. Berinsky, Allison J.B. Chaney, Justin de Benedictis-Kessner, Andy Guess, Dean Knox, Christopher Lucas, Rachel Mariman, and Brandon M. Stewart. "Algorithmic recommendations have limited effects on polarization: A naturalistic experiment on YouTube." September 18, 2023.

Mitigating Included - and Omitted - Variable Bias in Estimates of Disparate Impact

Jung, Jongbin, Sam Corbett-Davies, Johann D. Gaebler, Ravi Shroff, and Sharad Goel. "Mitigating Included - and Omitted - Variable Bias in Estimates of Disparate Impact." .

LegalBench: A Collaboratively Built Benchmark for Measuring Legal Reasoning in Large Language Models

Guha, Neel, Sharad Goel, et al. "LegalBench: A Collaboratively Built Benchmark for Measuring Legal Reasoning in Large Language Models." August 23, 2023.

Severe Depressive Symptoms Exacerbate the Relationship Between Conspiracy Beliefs and Voting for Election Doubters

Baum, Matthew A., James Druckman, Katherine Ognyanova, and Jonathan Schulman. "Severe Depressive Symptoms Exacerbate the Relationship Between Conspiracy Beliefs and Voting for Election Doubters." IPR Working Paper Series, June 12, 2023.

Risk Scores, Label Bias, and Everything but the Kitchen Sink

Zanger-Tishler, Michael, Julian Nyarko, and Sharad Goel. "Risk Scores, Label Bias, and Everything but the Kitchen Sink." .

Automated Court Date Reminders Reduce Warrants for Arrest: Evidence from a Text Messaging Experiment

Chohlas-Wood, Alex, Madison Coots, Joe Nudell, Julian Nyarko, Emma Brunskill, Todd Rogers, and Sharad Goel. "Automated Court Date Reminders Reduce Warrants for Arrest: Evidence from a Text Messaging Experiment." .

Antiracist Institutional Change in Healthcare

Muhammad, Khalil, and Angel Cardo Rodriguez. "Antiracist Institutional Change in Healthcare." Institutional Antiracism and Accountability Project, Ash Center for Democratic Governanance and Innovation, March 2023.

Democratic mayors have no effect on crime, but do reduce the Black share of arrests for petty crimes

de Benedictis Kessner, Justin, Matthew Harvey, Daniel Jones, and Christopher Warshaw. "Democratic mayors have no effect on crime, but do reduce the Black share of arrests for petty crimes." January 23, 2023.

How Self-Interest and Symbolic Politics Shape the Effectiveness of Compensation for Nearby Housing Development

Hankinson, Michael and Justin de Benedictis Kessner. "How Self-Interest and Symbolic Politics Shape the Effectiveness of Compensation for Nearby Housing Development." November 18, 2022.

Pandemic, Governors, and Public Opinion: The Effect of COVID-19 Cases and Deaths on Public Support for America’s Governors

Safarpour, Alauna, and Matthew Baum. "Pandemic, Governors, and Public Opinion: The Effect of COVID-19 Cases and Deaths on Public Support for America’s Governors." October 13, 2022.

Media Measurement Matters: Estimating the Persuasive Effects of Partisan Media with Survey and Behavioral Data

Wittenberg, Chloe, Matthew A. Baum, Adam J. Berinsky, Justin de Benedictis-Kessner, and Teppei Yamamoto. "Media Measurement Matters: Estimating the Persuasive Effects of Partisan Media with Survey and Behavioral Data." September 26, 2022.

State Policies and the US Election Franchise: A Multistage Approach

Brodnax, NaLette, Ji Su Yoo, and Latanya Sweeney. "State Policies and the US Election Franchise: A Multistage Approach." American Political Science Association Preprints, April 15, 2022.

Evaluating the generalizability of the COVID States survey — a large-scale, non-probability survey

Radford, Jason, Jon Green, Alexi Quintana, Alauna Safarpour, Matthew D Simonson, Matthew Baum, David Lazer, Katherine Ognyanova, James Druckman, Roy Perlis, Mauricio Santillana, and John Della Volpe. "Evaluating the generalizability of the COVID States survey — a large-scale, non-probability survey." March 7, 2022.

The COVID States Project #78: American mask use and CDC guidance

Safarpour, Alauna, Alexi Quintana, David Lazer, Roy Perlis, Matthew Baum, Katherine Ognyanova, Anjuli Shere, et al. "The COVID States Project #78: American mask use and CDC guidance." The COVID-19 Consortium for Understanding the Public's Policy Preferences Across States, January 15, 2022.

The COVID States Project #77: Healthcare workers' perception of COVID-19 misinformation

Trujillo, Kristin L., Matthew Baum, David Lazer, Katherine Ognyanova, James Druckman, Roy Perlis, Mauricio Santillana, et al. "The COVID States Project #77: Healthcare workers' perception of COVID-19 misinformation." The COVID-19 Consortium for Understanding the Public's Policy Preferences Across States, January 13, 2022.

The Role of Social Signaling in Selective Exposure to Information

Moore, Molly, Charles Dorison, and Julia Minson. "The Role of Social Signaling in Selective Exposure to Information." November 2021.

What I Saw on the Road to Insurrection: Internal Political Efficacy, Conspiracy Beliefs and the Effect of Depression on Support for the January 6th Storming of the Capitol

Baum, Matthew A., James Druckman, Matthew D Simonson, Jennifer Lin, and Roy Perlis. "What I Saw on the Road to Insurrection: Internal Political Efficacy, Conspiracy Beliefs and the Effect of Depression on Support for the January 6th Storming of the Capitol." July 2021.

Empirical Approaches to Identify Systemic Discrimination in Policing

Chohlas-Wood, Alex, Marissa Gerchick, Sharad Goel, Aziz Huq, Amy Shoemaker, Ravi Shroff, and Keniel Yao. "Empirical Approaches to Identify Systemic Discrimination in Policing." .

Personal Narratives Build Trust Across Ideological Divides

Hagmann, David, Julia Minson, and Catherine H. Tinsley. "Personal Narratives Build Trust Across Ideological Divides." April 5, 2021.

Comparison of post-COVID depression and major depressive disorder

Perlis, Roy H., Mauricio Santillana, Katherine Ognyanova, Jon Green, James Druckman, David Lazer, and Matthew A. Baum. "Comparison of post-COVID depression and major depressive disorder." MedRxiv (2021).

Persistence of symptoms up to 10 months following acute COVID-19 illness

Perlis, Roy H., Jon Green, Mauricio Santillana, David Lazer, Katherine Ognyanova, Matthew Simonson, Matthew A. Baum et al. "Persistence of symptoms up to 10 months following acute COVID-19 illness." MedRxiv (2021).

Big Tech and Democracy: The Critical Role of Congress

Belei, Bogdan, Toni Bush, Maeve Campbell, Ash Carter, Lucy Chase, Mignon Clyburn, Bennett Craig, Daniel Gastfriend, Dipayan Ghosh, Gene Kimmelman, Heidi Legg, Laura Manley, Nicco Mele, Hong Qu, Amy Robinson, Philip Verveer, and Tom Wheeler. "Big Tech and Democracy: The Critical Role of Congress." April 2019.