Dr Jonathan Mellon
Associate Professor
Co-Director - British Election Study
Advisor - Systems and Decision Sciences Program
Systems Engineering
Personal WebsiteDr. Jon Mellon is an Associate Professor at West Point’s Department of Systems Engineering. He serves as co-director of the British Election Study and advisor to the Systems Engineering Program.
Dr. Mellon completed his DPhil in Sociology at Nuffield College with a thesis titled New Methods for New Data: Developing Techniques for Analysing Alternative Social Science Data. Before coming to West Point, he held faculty positions at the University of Oxford (2014-2020) and University of Manchester (2020-2022).
Dr. Mellon has published 27 articles in peer reviewed journals including the American Political Science Review, American Journal of Political Science, Journal of Politics, Public Administration Review, British Journal of Political Science, and Public Opinion Quarterly as well as numerous book chapters and white papers. He also co-authored Electoral Shocks: The Volatile Voter in a Turbulent World with Oxford University Press (available open access). As part of his research, he has designed and fielded more than 40 surveys around the world. He has helped to win grants worth a total of $9 million across 14 awards.
He currently co-advises four PhD candidates at the University of Manchester and several Honors theses at West Point.
Dr. Mellon's research focuses on improving measurement and causal inference in social science. Substantively his research has focused on electoral behavior, online citizen engagement, and measuring public opinion.
He has also consulted extensively for industry and international organizations including for the World Bank as a data scientist analyzing online civic engagement in developed and developing country contexts, for the Organization for Security and Co-Operation in Europe, running statistical analysis of election observer reports and for the BBC on their election night coverage, and optimizing supply chains for US companies.
D.Phil. Sociology University of Oxford/M.Sc. Sociology University of Oxford/B.A. Politics
Philosophy and Economics University of Oxford
Research Interests
Measurement methods, Causal inference, Electoral behavior, Survey Methodology
Current Research
British Election Study (https://www.britishelectionstudy.com/), Developing a database of causal claims in social science, Measuring the social cost of homelessness: extending the quality adjusted life year (QALY) to non-health policy outcomes
Selected Publications
Mellon, Jonathan. 2024. "Rain, Rain, Go Away: 194 Potential Exclusion-Restriction Violations for Studies Using Weather as an Instrumental Variable." American Journal of Political Science. https://doi.org/10.1111/ajps.12894.
Mellon, Jonathan, and Christopher Prosser. Forthcoming. "Ridge Regression Can Produce Misleading Inferences in the Presence of Strong Confounders: The Case of Mass Polarization." American Political Science Review.
Mellon, Jonathan, Jack Bailey, Ralph Scott, James Breckwoldt, Marta Miori, and Phillip Schmedeman. 2024. "Do AIs Know What the Most Important Issue Is? Using Language Models to Code Open-Text Social Survey Responses at Scale." Research & Politics. https://doi.org/10.1177/20531680241231468.
Hanretty, Chris, Jonathan Mellon, and Patrick English. 2021. "Members of Parliament Are Minimally Accountable for Their Issue Stances (and They Know It)." American Political Science Review 115 (4): 1275–1291. https://doi.org/10.1017/S0003055421000514.
Mellon, Jonathan, and Christopher Prosser. 2021. "Correlation with Time Explains the Relationship Between Survey Nonresponse and Mass Polarization." Journal of Politics 83 (1): 000–000. https://doi.org/10.1086/709433.
Full publication list: https://scholar.google.com/citations?user=EekbrtcAAAAJ&hl=en