I am an Assistant Professor of Politics and Public Affairs at Princeton University. I study bureaucratic politics and political behavior, and devote particular focus to law enforcement agencies. In addition to evaluating the efficacy of police reform, I also study how police tactics influence public perceptions of institutions and the social world.

I have also authored studies on partisan polarization, political communication and racial and ethnic politics. I conduct methodological research on issues relevant to my substantive work, including statistical modeling and experimental design. My work exploits a range of research designs and data sources including survey and natural experiments, qualitative interviews and administrative records obtained through public information requests to government agencies.

My research has appeared or is forthcoming in American Political Science Review, The Journal of Politics, Proceedings of the National Academy of Sciences, Quarterly Journal of Political Science and Political Analysis, among other peer-reviewed journals. I received a B.A. from New York University and a Ph.D. from Stanford University. Before beginning my doctoral studies, I was a staff writer at The Washington Post, where I covered crime and politics in the Washington, D.C. region.

Selected Publications

Mummolo, Jonathan. 2018. “Militarization Fails to Enhance Police Safety or Reduce Crime but May Harm Police Reputation.” Proceedings of the National Academy of Sciences of the United States of America. 115(37): 9181-9186.

Mummolo, Jonathan. 2018. “Modern Police Tactics, Police-Citizen Interactions and the Prospects for Reform.” The Journal of Politics. 80(1): 1-15.

Mummolo, Jonathan and Erik Peterson. “Demand Effects in Survey Experiments: An Empirical Assessment.” Forthcoming at American Political Science Review.

Hainmueller, Jens, Jonathan Mummolo and Yiqing Xu. “How Much Should We Trust Estimates from Multiplicative Interaction Models? Simple Tools to Improve Empirical Practice.” Forthcoming at Political Analysis.

Mummolo, Jonathan and Clayton Nall. 2016. “Why Partisans Do Not Sort: The Constraints on Political Segregation.” The Journal of Politics, 79(1): 45-59.

Mummolo, Jonathan. 2016. “News From the Other Side: How Topic Relevance Limits the Prevalence of Partisan Selective Exposure.” The Journal of Politics. 78(3): 763-773.

Selected Honors and Awards

Harold D. Lasswell Award, for the best dissertation in the field of public policy, American Political Science Association, 2018