Jonne Kamphorst

Two questions define my research agenda

First, what are the origins of political divides? I’m especially interested in why voters find different things important and how that influences who they vote for. In my job market paper, forthcoming at the Journal of Politics, I argue that diverse coalitions of voters are harder to form as identity-based conflict gains in importance in voters’ minds. One important contribution of this piece is that it explains the decline of mainstream candidates and parties in Europe and the United States. In a world characterized by conflict over salient, divisive issues, uniting voters with diverse preferences using strategic ambiguity and broad appeals becomes increasingly difficult. Second, how can democracy be strengthened by re-engaging voters and bridging political divides? I am particularly interested in how politicians across Europe and the U.S. can build new, broad coalitions that include voters who are less likely to vote. What mainly draws me to coalition formation and re-engagement as a research topic is that there are many important questions left to ask: most of the existing research has focused exclusively on the causes underpinning the collapse of political coalitions, as opposed to potential remedies.

My methodological expertise is in the design, conduct, and analysis of randomized field and survey experiments which I am employing in collaboration with NGOs, political candidates, and parties. I also use quasi-experimental methods for causal inference As a researcher, I have learned the most from collaborations with societal organizations in ‘the field’. To learn even more, I’m actively looking for new organizations to work together with and help design their programs so that it becomes possible to evaluate the impact they have. If you are interested in what makes voters participate in democratic processes or have a program you want to evaluate, please reach out!

I also have a keen interest in political science methodology—particularly (quasi) experimental methods.


 

Political divides in advanced democracies

  • Too Important to Ignore: Why Ambiguity and Broad Appeals Fail With Rising Issue Salience. [Journal of Politics (conditionally accepted)] [pre-registration]

  • Field of Education and the Transnational Cleavage. (with Gary Marks and Liesbet Hooghe) Forthcoming at the American Political Science Review.

  • Separated by Degrees: Social Closure by Education Levels Strengthens Contemporary Political Divides. (with Jona de Jong). R&R at Comparative Political Studies

  • Prominence over Proximity? The Effects of Terrorist Attacks on Party Preferences for Incumbent versus Populist Radical Right Parties. (with Emma Hoes). [European Political Science Review (2023)]

 
 

political persuasion

  • Correcting Misperceptions of the Material Benefits Associated with Union Membership Increases Americans’ Interest in Joining Unions. (with Robb Willer). PNAS (2024)
  • Get Out The Volunteer! What motivates party members to become active for a political party? (with Horacio Larreguy). Under Review. [pre-registration]
  • Stepping Out of the Comfort Zone: (How) Can Niche Parties Expand Their Electorate? (with Tarik Abou-Chadi). Under Review. [pre-registration]
 
 

other research interests

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Redistribution preferences

  • Income, Meritocracy, and Distributive Preferences: Why Income Influences if Fairness Beliefs Matter (with Irene Paneda Fernandez, Balaraju Battu, and Arnout van de Rijt). Under Review

American politics

  • Where is President Pete: The Causal Effect of Winning in the Early Primaries (with Alexander Davenport, Marcus Hagley, Arnout van de Rijt, and Elias Dinas. R&R at the Journal of Politics [working paper]