School of Humanities and Sciences


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  • Luca Bellodi

    Luca Bellodi

    Postdoctoral Scholar, Political Science

    BioLuca Bellodi is a research fellow at the Hoover Institution and a postdoctoral scholar in the Department of Political Science at Stanford University. His current research focuses on American political institutions, specifically the interaction between politics, bureaucracy, and populism, and its consequences for the quality of government.

    In Bellodi’s primary line of research, he studies politicians’ incentives to control the behavior of bureaucratic agencies, lawmakers’ reliance on bureaucratic expertise, and the role of bureaucracy in shaping the political agenda. He introduces innovative measurement strategies that combine natural language processing techniques and machine learning to address novel questions in the study of oversight, rulemaking, and the use of information in the policymaking process.

    In a related line of research, Bellodi investigates why politicians adopt populist behaviors and examines the consequences of populism for government performance and the quality of bureaucracy.

    Luca Bellodi holds a PhD in political science from University College London. Before joining Stanford, he was a postdoctoral research fellow at Bocconi University in Milan.

  • Derek Holliday

    Derek Holliday

    Postdoctoral Scholar, Political Science

    BioDerek Holliday is a Postdoctoral Fellow for the Polarization Research Lab, a cross-university lab between Stanford, Dartmouth, and UPenn researching affective polarization, social trust, and political violence. His work with the lab has been published in the Proceedings of the National Academy of Sciences. His research focuses on political representation, opinion, and behavior, especially in state and local politics. His methodological interests include survey experiments, text-as-data, and applications of machine learning in social science.

    Derek received his PhD in Political Science in 2023 from UCLA, where he jointly obtained an MS in Statistics. At UCLA, he was the project coordinator for Nationscape, a U.S. election survey that interviewed almost half a million respondents through the 2020 Presidential campaign. Additionally, he worked as a research analyst for the UCLA COVID-19 Health and Politics Project, a collaboration between social scientists and doctors measuring people’s pandemic experiences and attitudes. Work from the project has been featured in the New York Times and published in Vaccine.

  • Jacob Jaffe

    Jacob Jaffe

    Postdoctoral Scholar, Political Science

    BioJacob Jaffe is a postdoctoral fellow at the Department of Political Science. Jaffe defended his Ph.D. dissertation from MIT in July of 2023. Jaffe specializes in American Politics and Methodology. His work explores the administration of American elections, trust in government, and public opinion. In combining large observational datasets and experimental ones, Jaffe shows how elite behavior and policy govern how Americans experience elections and how public opinion changes over time.