WOrking papers


Arceneaux, Kevin, Martial Foucault, Kalli Giannelos, Jonathan Ladd, and Can Zengin. "The Effects of Facebook Access during the 2022 French Presidential Election: Can We Incentivize Citizens to be Better Informed and Less Polarized?"  Accepted and forthcoming in Royal Society Open Science. Earlier versions of this paper were presented at the 2023 Annual Meeting of the Midwest Political Science Association, Chicago, IL, USA, the 2023 Annual Meeting of the European Political Science Association, Glasgow, UK., and the 2024 Annual Meeting of the Southern Political Science Association, New Orleans, LA, USA.​

​ARTICLES IN PEER REVIEWED JOURNALS


​Gillion, Daniel Q., Jonathan M. Ladd and Marc Meredith. 2020. "Party Polarization, Ideological Sorting and the Emergence of the U.S. Partisan Gender Gap."  British Journal of Political Science, vol. 50, no. 4, pp. 1217-1243.
Croco, Sara E., Elizabeth Suhay, Rachel Blum, Lilliana Mason, Hans Noel, Jonathan M. Ladd and Michael M. Bailey. 2019. "Student Run Exit Polls 101."  PS: Political Science & Politics, vol. 52, no. 2, pp. 361-366.

Hopkins, Daniel J., and Jonathan M. Ladd. 2014. "The Consequences of Broader Media Choice: Evidence from the Expansion of Fox News." Quarterly Journal of Political Science,  vol. 9, no. 1, pp. 115-135.
Ladd, Jonathan M., and Gabriel S. Lenz. 2011. "Does Anxiety Improve Voters' Decision Making?." Political Psychology, vol. 32, no. 2, pp. 347-361.
  • Invited contribution to a three article workshop discussing our previous article, "Reassessing the Role of Anxiety in Vote Choice."

Ladd, Jonathan M. 2010. "The Role of Media Distrust in Partisan Voting." Political Behavior, vol. 32, no. 4, pp 567-585.
  • Earlier versions of this article won the Westview Press Award for the best paper presented by a graduate student at the 2005 Annual Meeting of the Midwest Political Science Association and were discussed on the official blog of the New York Times Editorial Board ("The Press and Polarization")

Ladd, Jonathan M. 2010. "The Neglected Power of Elite Opinion Leadership to Produce Antipathy toward the News Media: Evidence from a Survey Experiment." Political Behavior, vol. 32, no. 1, pp. 29-50.

Ladd, Jonathan M., and Gabriel S. Lenz. 2009. "Exploiting a Rare Communication Shift to Document the Persuasive Power of the News Media." American Journal of Political Science, vol. 53, no. 2, pp. 394-410.
Ladd, Jonathan M., and Gabriel S. Lenz. 2008. "Reassessing the Role of Anxiety in Vote Choice." Political Psychology, vol. 29, no. 2, pp. 275-296. (PDF)

Ladd, Jonathan M. 2007. "Predispositions and Public Support for the President during the War on Terrorism." Public Opinion Quarterly, vol. 71, no. 4, pp. 511-538.

Book Chapters


​"Attention to Campaign Events: Do Twitter and Self-Report Metrics Tell the Same Story?" (with Josh Pasek,  Lisa O. Singh, Yifang Wei, Stuart N. Soroka, Michael W. Traugott, Ceren Budak, Leticia Bode, and Frank Newport). In Big Data Meets Survey Science: A Collection of Innovative Methods, eds. Craig A. Hill, Paul P. Biemer, Trent D. Buskirk, Lilli Japec, Antje Kirchner, Stas Kolenikov, and Lars E. Lyberg. Hoboken, NJ: Wiley, pp. 193-216. (Publisher Page)

​"Sowing Distrust of the News Media as an Electoral Strategy" (with Alexander R. Podkul). In Oxford Handbook of Electoral Persuasion, eds. Bernard Grofman, Liz Suhay, and Alex Trechsel. New York, NY: Oxford University Press. 2020. (PDF, Publisher Page)

​"Distrust of the News Media as a Symptom and a Further Cause of Partisan Polarization" (with Alexander R. Podkul). In New Directions in Media and Politics, Second Edition, ed. Travis N. Ridout. New York, NY: Routledge, pp. 54-79. 2019. (PDF, Publisher Page, Google Books Page)

​"The Era of Media Distrust and Its Consequences for Perceptions of Political Reality." In New Directions in Media and Politics, ed. Travis N. Ridout. New York, NY: Routledge, pp. 24-44. 2013. (Publisher Page, Google Books Page)

Reports for Think Tanks or Foundations


​Kates, Sean, Jonathan M. Ladd, and Joshua A. Tucker. 2023. "How Americans’ Confidence in Technology Firms Has Dropped: Evidence From the Second Wave of the American Institutional Confidence Poll." A research report in the series on "The Economics and Regulation of Artificial Intelligence and Emerging Technologies,"  for the Center on Regulation and Markets, The Brookings Institution. 

Singh, Lisa, Michael Traugott, Leticia Bode, Ceren Budak, Pamela E. Davis-Kean, Ramanathan Guha, Jonathan Ladd, Zeina Mneimneh, Quynh Nguyen, Josh Pasek, Trivellore Raghunathan, Rebecca Ryan, Stuart Soroka, Laila Wahedi. 2020. "​Data Blending: Haven't We Been Doing This for Years?" A white paper prepared for the Massive Data Institute, Georgetown University. Posted on PsyArXiv Preprints. 

Ladd, Jonathan M., Joshua A. Tucker, and Sean Kates. 2018. "The 2018 American Institutional Confidence Poll: The Health of American Democracy in an Era of Hyper Polarization." A report by the John S. and James L. Knight Foundation and the Baker Center for Leadership & Governance at Georgetown University.

Ladd, Jonathan M., and Alexander R. Podkul. 2018. "The Spread of Inaccurate Political Information In the Era of Distrusted News Media."  Knight Foundation white paper prepared for the Knight Commission on Trust, Media and Democracy, a project of the Aspen Institute and the John S. and James L. Knight Foundation. It is summarized in this blog post on the Commission's Medium page. 

Ladd, Jonathan M., with Alex Podkul. 2018. "The Spread of Inaccurate Political Information in the Era of Distrusted News Media." A white paper for the John S. and James L. Knight Foundation.​

Ladd, Jonathan M., and Joshua A. Tucker 2017. "Review of Data Available to Measure the Health of Democracy and Menu of Future Options for Improved Measurement Efforts in the United States." A report by the John S. and James L. Knight Foundation.

Other Major Public Research Reports


​"Analysis and Visualization Considerations for Quantitative Social Science Research Using Social Media Data" (with Brad Jensen, Lisa Singh, Pamela Davis-Kean, Katharine Abraham, Paul Beatty, Leticia Bode,  Duen Horng Chau, Tina Eliassi-Rad, Rich Gonzalez, Rebecca Hamilton, In Song Kim, Theresa Kuchler, Kristina Lerman, Maggie Levenstein,  Zeina Mneimneh, Quynh Camthi Nguyen, Josh Pasek, Trivellore Raghunathan, Rebecca Ryan, Stuart Soroka, Mahlet Tadesse, and Michael Traugott). Posted on PsyArXiv Preprints. July 28, 2021. (PDF)

"Modeling Considerations for Quantitative Social Science Research Using Social Media Data" (with Ceren Budak, Stuart Soroka, Lisa Singh, Michael Bailey, Leticia Bode, Nitesh Chawla, Pamela Davis-Kean, Munmun De Choudhury, Richard De Veaux, Ulrike Hahn, Brad Jensen, Zeina Mneimneh, Josh Pasek, Trivellore Raghunathan, Rebecca Ryan, Noah A. Smith, and Michael Traugott). Posted on PsyArXiv Preprints. May 17, 2021. (PDF)

"Data Acquisition, Sampling, and Data Preparation Considerations for Quantitative Social Science Research Using Social Media Data" (with Zeina Mneimneh, Josh Pasek, Lisa Sing, Rachel Best, Leticia Bode, Elizabeth Bruch, Ceren Budak, Pamela Davis-Kean, Katharine Donato, Nicole Ellison, Andrew Gelman, Erica Groshen, Libby Hemphill, William Hobbs, Brad Jensen, George Karypis, Amy O'Hara, Trivellore Raghunathan, Philip Resnik, Rebecca Ryan, Stuart Soroka, Michael Traugott, Brady West, and Stefan Wojcik). Posted on PsyArXiv Preprints. March 15, 2021. (PDF)

"Measurement Considerations for Quantitative Social Science Research Using Social Media Data" (with Rebecca Ryan, Lisa Singh, Leticia Bode, Ceren Budak, Frederick Conrad, Elizabeth Cooksey, Pam Davis-Kean, Keenan Dworak-Fisher, Deen Freelon, Dan Hopkins, Brad Jensen, Ken Kelley, Renee Miller, Zeina Mneimneh, Josh Pasek, Trivellore Raghunathan, Carole Roan Gresenz, Sudeepta Roy, Stuart Soroka, and Michael Traugott). Posted on PsyArXiv Preprints. December 23, 2020. (PDF)

"Study Designs for Quantitative Social Science Research Using Social Media" (with Lisa Singh, Leticia Bode, Pamela Davis-Kean, John Abowd, Tanya Berger-Wolf, Ceren Budak, Guangqing Chi, Andy Guess, Jennifer Hill, Adam Hughes, Brad Jensen, Frauke Kreuter, Margaret Little, Zeina Mneimneh, Kevin Munger, Josh Pasek, Trivellore Raghunathan, Rebecca Ryan, Stuart Soroka, and Michael Traugott). Posted on PsyArXiv Preprints. July 1, 2020. (PDF)

Currently Inactive Working Papers


​"Affective and Perceptual Polarization Among Party Activists." Working paper. A previous version was presented at the 2016 Annual Meeting of the American Political Science Association, Philadelphia, PA. (PDF)

​"The Push and Pull of African Americans' Support for the Democratic Party" (with Daniel Q. Gillion and Marc Meredith). Presented at the 2014 Annual Meeting of the Midwest Political Science Association, Chicago, IL. (PDF)

"Investigating the Pro-Life Abortion Policy Preferences of the Millennial Generation" (with Clyde Wilcox). Paper presented at the 2011 Annual Meeting of the Midwest Political Science Association, Chicago, IL.  (PDF)
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