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Gavel and scales of justice on a green-felted desk in front of bookshelves.
Feature: How U.S. Courts Privilege Conservative Policy Outcomes

Maya Sen assesses the institutional and compositional features of U.S. federal courts that tend to bias them toward conservative policy outcomes.

Map of the united states with a pin in the midwest.
Feature: The U.S. Place-Based Policy Supply Chain

Dani Rodrik and Gordon Hanson document how vertical policy supply chains distribute resources from federal and state governments to recipients at the local level.

Political leader speaks into a microphone at a podium with an advisor standing behind her.
Feature: How Does Shaming Human Rights Violators Abroad Shape Attitudes at Home?

Lotem Bassan-Nygate theorizes that by shaming human rights violators abroad, governments can improve their image at home but may encourage tolerance toward certain domestic violations.

Two people sit at a desk in front of a laptop with rows of filing cabinets behind them.
Feature: Thinking (about Peace Science) in Time

Erica Chenoweth speaks to colleagues in the peace science community, reflecting on the world events that have shaped their scholarship and how researchers might think about the current geopolitical moment.

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

Irritability and Social Media Use in US Adults

Perlis, Roy H., Ata Uslu, Jonathan Schulman, Faith M. Gunning, Mauricio Santillana, Matthew A. Baum, James N. Druckman, Katherine Ognyanova, and David Lazer. "Irritability and Social Media Use in US Adults." JAMA Network Open 8.1 (January 2025): e2452807.

A Framework for Considering the Value of Race and Ethnicity in Estimating Disease Risk

Coots, Madison, Soroush Saghafian, David M. Kent, and Sharad Goel. "A Framework for Considering the Value of Race and Ethnicity in Estimating Disease Risk." Annals of Internal Medicine 178.1 (January 2025): 98-107.

Racial Bias in Clinical and Population Health Algorithms: A Critical Review of Current Debates

Coots, Madison, Kristin Linn, Sharad Goel, Amol Navathe, and Ravi Parikh. "Racial Bias in Clinical and Population Health Algorithms: A Critical Review of Current Debates." Annual Review of Public Health (forthcoming).

Guidance for unbiased predictive information for healthcare decision-making and equity (GUIDE): considerations when race may be a prognostic factor

Ladin, Keren, John Cuddeback, O. Kenrik Duru, Sharad Goel, William Harvey, Jinny G. Park, Jessica K. Paulus, Joyce Sackey, Richard Sharp, Ewout Steyerberg, Berk Ustun, David van Klaveren, Saul N. Weingart, and David M. Kent. "Guidance for unbiased predictive information for healthcare decision-making and equity (GUIDE): considerations when race may be a prognostic factor." npj digital medicine 7 (2024): 290.

Guidance for unbiased predictive information for healthcare decision-making and equity (GUIDE): considerations when race may be a prognostic factor

Ladin, Keren, John Cuddeback, O. Kenrik Duru, Sharad Goel, et al. "Guidance for unbiased predictive information for healthcare decision-making and equity (GUIDE): considerations when race may be a prognostic factor." NPJ Digital Medicine 7.290 (2024).

Tracking COVID-19 Infections Using Survey Data on Rapid At-Home Tests

Santillana,Mauricio, Ata A. Uslu, Tamanna Urmi, Alexi Quintana-Mathe, James N. Druckman, Katherine Ognyanova, Matthew Baum, Roy H. Perlis, and David Lazer. "Tracking COVID-19 Infections Using Survey Data on Rapid At-Home Tests." JAMA Network Open 7.9 (September 2024): e2435442.

Prevalence and correlates of irritability among U.S. adults

Perlis, Roy H., Ata Uslu, Jonathan Schulman, Aliayah Himelfarb, Faith M. Gunning, Nili Solomonov, Mauricio Santillana, Matthew A. Baum, James N. Druckman, Katherine Ognyanova, and David Lazer. "Prevalence and correlates of irritability among U.S. adults." Neuropsychopharmacology (24 August 2024).

Trust in Physicians and Hospitals During the COVID-19 Pandemic in a 50-State Survey of US Adults

Perlis, Roy H., Katherine Ognyanova, Ata Uslu, Kristin Lunz Trujillo, Mauricio Santillana, James N. Druckman, Matthew A. Baum, and David Lazer. "Trust in Physicians and Hospitals During the COVID-19 Pandemic in a 50-State Survey of US Adults." JAMA 7.7 (July 2024): e2424984.

The role of positive emotion in harmful health behavior: Implications for theory and public health campaigns

Wang, Ke, Vaughan W. Rees, Charles A. Dorison, and Jennifer S. Lerner. "The role of positive emotion in harmful health behavior: Implications for theory and public health campaigns." PNAS 121.28 (July 1, 2024).

Cognitive Symptoms of Post–COVID-19 Condition and Daily Functioning

Jaywant, Abhishek, Faith M. Gunning, Lauren E. Oberlin, Mauricio Santillana, Katherine Ognyanova, James N. Druckman, Matthew A. Baum, David Lazer, and Roy H. Perlis. "Cognitive Symptoms of Post–COVID-19 Condition and Daily Functioning." JAMA Network Open 7.2 (February 2024): e2356098.

Feeling uncertain despite knowing the risk: Patients with OCD (but not controls) experience known and unknown probabilistic decisions as similarly distressing and uncertain

Jacoby, Ryan J., Abigail Szkutak, Jin Shin, Jennifer Lerner, and Sabine Wilhelm. "Feeling uncertain despite knowing the risk: Patients with OCD (but not controls) experience known and unknown probabilistic decisions as similarly distressing and uncertain." Journal of Obsessive-Compulsive and Related Disorders 39 (October 2023).

Community Mobility and Depressive Symptoms During the COVID-19 Pandemic in the United States

Perlis, Roy H., Kristin Lunz Trujillo, Alauna Safarpour, Alexi Quintana, Matthew D. Simonson, Jasper Perlis, Mauricio Santillana, Katherine Ognyanova, Matthew A. Baum, James N. Druckman, and David Lazer. "Community Mobility and Depressive Symptoms During the COVID-19 Pandemic in the United States." JAMA Network Open 6.9 (September 27, 2023).

The Political Consequences of Depression: How Conspiracy Beliefs, Participatory Inclinations, and Depression Affect Support for Political Violence

Baum, Matthew A., James N. Druckman, Matthew D. Simonson, Jennifer Lin, and Roy H. Perlis. "The Political Consequences of Depression: How Conspiracy Beliefs, Participatory Inclinations, and Depression Affect Support for Political Violence." American Journal of Political Science (September 11, 2023): 1-20.

A 50-state survey study of thoughts of suicide and social isolation among older adults in the United States

Solomonov, Nili, Jon Green, Alexi Quintana, Jennifer Lin, Katherine Ognyanova, Mauricio Santillana, James N. Druckman, Matthew A. Baum, David Lazer, Faith M. Gunning, and Roy H. Perlis. "A 50-state survey study of thoughts of suicide and social isolation among older adults in the United States." Journal of Affective Disorders 334 (1 August 2023): 43-49.

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.

Media use and vaccine resistance

Green, Jon, James N. Druckman, Matthew A. Baum, Katherine Ognyanova, Matthew D. Simonson, Roy H. Perlis, and David Lazer. "Media use and vaccine resistance." PNAS Nexus 2.5 (May 2023): pgad146.

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.

A Randomized Trial of Behavioral Nudges Delivered Through Text Messages to Increase Influenza Vaccination Among Patients With an Upcoming Primary Care Visit

Patel, Mitesh S.,... Todd Rogers, et al. "A Randomized Trial of Behavioral Nudges Delivered Through Text Messages to Increase Influenza Vaccination Among Patients With an Upcoming Primary Care Visit." American Journal of Health Promotion 37.3 (March 2023): 324-332.

Depressive symptoms and conspiracy beliefs

Green, Jon, James N. Druckman, Matthew A. Baum, David Lazer, Katherine Ognyanova, and Roy H. Perlis. "Depressive symptoms and conspiracy beliefs." Applied Cognitive Psychology 37.2 (March 2023): 247-264.

How the Identity of Substance Users Shapes Public Opinion on Opioid Policy

de Benedictis Kessner, Justin and Michael Hankinson. "How the Identity of Substance Users Shapes Public Opinion on Opioid Policy." Political Behavior (2022).

Using General Messages to Persuade on a Politicized Scientific Issue

Green, Jon, James N. Druckman, Matthew A. Baum, David Lazer, Katherine Ognyanova, Matthew Simsonson, Jennifer Lin, Mauricio Santillana, and Roy H. Perlis. "Using General Messages to Persuade on a Politicized Scientific Issue." British Journal of Political Science 1-9 (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.

In COVID-19 Health Messaging, Loss Framing Increases Anxiety with Little-to-No Concomitant Benefits: Experimental Evidence from 84 Countries

Dorison, Charles A., Jennifer S. Lerner, et al. "In COVID-19 Health Messaging, Loss Framing Increases Anxiety with Little-to-No Concomitant Benefits: Experimental Evidence from 84 Countries." Affective Science 3 (September 2022): 577-602.

Kansas vote for abortion rights highlights disconnect between majority opinion on abortion laws and restrictive state laws being passed after Supreme Court decision

Baum, Matthew A., Alauna Safarpour, and Kristin Lunz Trujillo. "Kansas vote for abortion rights highlights disconnect between majority opinion on abortion laws and restrictive state laws being passed after Supreme Court decision." The Conversation. July 25, 2022.

A multisource database tracking the impact of the COVID-19 pandemic on the communities of Boston, MA, USA

Ristea, Alina, Riley Tucker, Shunan You, Mehrnaz Amiri, Nicholas Beauchamp, Edgar Castro, Qiliang Chen, Alexandra Ciomek, Bidisha Das, Justin de Benedictis-Kessner, Sage Gibbons, Forrest Hangen, Barrett Montgomery, Petros Papadopoulos, Cordula Robinson, Saina Sheini, Michael Shields, Xin Shu, Michael Wood, Babak Heydari, and Dan O’Brien. "A multisource database tracking the impact of the COVID-19 pandemic on the communities of Boston, MA, USA." Scientific Data 9.1 (June 20, 2022): 330.

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.

Association of Major Depressive Symptoms With Endorsement of COVID-19 Vaccine Misinformation Among US Adults

Perlis, Roy H., Katherine Ognyanova, Mauricio Santillana, Jennifer Lin, James Druckman, David Lazer, Jon Green, Matthew Simonson, Matthew A. Baum, and John Della Volpe. "Association of Major Depressive Symptoms With Endorsement of COVID-19 Vaccine Misinformation Among US Adults." JAMA Network Open 5.1 (January 21, 2022): 1-12.

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.

Association Between Social Media Use and Self-reported Symptoms of Depression in US Adults

Perlis, Roy H., Jon Green, Matthew Simonson, Katherine Ognyanova, Mauricio Santillana, Jennifer Lin, Alexi Quintana, Hanyu Chwe, James Druckman, David Lazer, Matthew A. Baum and John Della Volpe. "Association Between Social Media Use and Self-reported Symptoms of Depression in US Adults." JAMA Network Open 4.11 (November 2021).

Gender-specificity of resilience in major depressive disorder

Perlis, Roy H., Katherine Ognyanova, Alexi Quintana, Jon Green, Mauricio Santillana, Jennifer Lin, James Druckman, David Lazer, Matthew Simonson, Matthew A. Baum, and Hanyu Chwe. "Gender-specificity of resilience in major depressive disorder." Depression & Anxiety 38.10 (October 2021): 1026-1033.

A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic

Wang, Ke, Jennifer Lerner, et al. "A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic." Nature Human Behaviour 5.8 (August 2021): 1089–1110.

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.

Predictors of COVID-19 Vaccine Hesitancy: Socio-Demographics, Co-Morbidity, and Past Experience of Racial Discrimination

Savoia, Elena, Rachael Piltch-Loeb, Beth Goldberg, Cynthia Miller-Idriss, Brian Hughes, Alberto Montrond, Juliette Kayyem, and Marcia A. Testa. "Predictors of COVID-19 Vaccine Hesitancy: Socio-Demographics, Co-Morbidity, and Past Experience of Racial Discrimination." Vaccines 9.7 (July 2021): 767.

Factors Associated With Self-reported Symptoms of Depression Among Adults With and Without a Previous COVID-19 Diagnosis

Perlis, Roy H., Jon Green, Katherine Ognyanova, Mauricio Santillana, James Druckman, David Lazer, and Matthew A. Baum. "Factors Associated With Self-reported Symptoms of Depression Among Adults With and Without a Previous COVID-19 Diagnosis." JAMA Network Open 4.6 (June 2021).

The role of race, religion, and partisanship in misperceptions about COVID-19

Druckman, James N., Katherine Ognyanova, Matthew A. Baum, David Lazer, Roy H. Perlis, John Della Volpe, Mauricio Santillana, Hanyu Chwe, Alexi Quintana, and Matthew Simonson. "The role of race, religion, and partisanship in misperceptions about COVID-19." Group Processes & Intergroup Relations 24.4 (June 2021): 638-657.

A megastudy of text-based nudges encouraging patients to get vaccinated at an upcoming doctor’s appointment

Patel, Mitesh S., Todd Rogers, et al. "A megastudy of text-based nudges encouraging patients to get vaccinated at an upcoming doctor’s appointment." Proceedings of the National Academy of Sciences 118.20 (May 18, 2021): e2101165118.

A megastudy of text-based nudges encouraging patients to get vaccinated at an upcoming doctor’s appointment

Milkman, Katherine L., Todd Rogers, et al. "A megastudy of text-based nudges encouraging patients to get vaccinated at an upcoming doctor’s appointment." Proceedings of the National Academy of Sciences 118.20 (April 2021): e2101165118.

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).

Association of Acute Symptoms of COVID-19 and Symptoms of Depression in Adults

Perlis, Roy H., Katherine Ognyanova, Mauricio Santillana, Matthew A. Baum, David Lazer, James Druckman, and John Della Volpe. "Association of acute symptoms of COVID-19 and symptoms of depression in adults." JAMA network open 4, no. 3 (2021): e213223-e213223.

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).