

Political Science
Main research and teaching areas
- Political parties
- European politics
- Representation
- Comparative politics
Current research and teaching
My teaching and research interests include political parties, the European Union, and comparative politics, particularly connections among these areas. My scholarship focuses on the representational relationship between citizens and parties in European democracies with an emphasis on voter-party congruence across various political topics and over time. Much of my work also addresses intra-party politics, e.g., similarities and differences in policy preferences between party members and party leadership. The estimation of party positions and voter preferences is a central theme in my research.
I am one of the principal investigators of the Chapel Hill Expert Survey on political party positioning, and was also the co-principal investigator for two rounds of the Swedish Party Membership Survey. Between 2024 and 2030, I am an elected member of the ECPR Executive Committee. Within the Department of Political Science at Lund, I am an elected member of the Department Board, the convenor of the Working Group on Gender Equality, Diversity, and Equal Opportunities, and also serve on the Research Committee and Budget Committee.
I was recipient of the Faculty of Social Sciences Teaching Award (2016) at the University of Gothenburg. My research has been recognised with the Outstanding Article Award from the American Political Science Association’s Political Organizations and Parties Section (2018) and Honourable Mention for the American Political Science Association’s Data Set Award (2020).
My teaching includes courses on Comparative Politics, the European Union, and Political Science Methodology. I regularly supervise student research on related topics at the bachelor, master, and doctoral levels.
Research projects
- Political Party Competition and the Transnational Cleavage in Europe. Riksbankens Jubileumsfond (RJ).
- Darkness on the horizon? Exploring the response to contestation of trade policy in Europe. Norwegian Research Council. (Guri Rosén, Principal Investigator).
- Political Party Member Responses to Organizational Change. Swedish Research Council (VR).
- The Electoral Effects of Ideological Moderation for Mainstream European Political Parties. Riksbankens Jubileumsfond (RJ).
Link to personal page
Publications
Displaying of publications. Sorted by year, then title.
Party responsiveness to public opinion in a multi-dimensional policy space
Raimondas Ibenskas, Jonathan Polk
(2026) Journal of European Public Policy, 33 p.767-794
ArticleThe 2024 Chapel Hill Expert Survey on political party positioning in Europe : Twenty-five years of party positional data
Jan Rovny, Jonathan Polk, Ryan Bakker, Liesbet Hooghe, Seth Jolly, et al.
(2025) Electoral Studies, 97
ArticleA Global Scale of Economic Left-Right Party Positions : Cross-National and Cross-Expert Perceptions of Party Placements
Nicolás de la Cerda, Ryan Bakker, Seth Jolly, Jonathan Polk, Ruth Dassonneville, et al.
(2025) Journal of Politics
ArticleVoter Responses to Social Democratic Ideological Moderation after the Third Way
Jonathan Polk, Johannes Karreth
(2024) Beyond Social Democracy: The Transformation of the Left in Emerging Knowledge Societies , p.279-313
Book chapterThe Russian threat and the consolidation of the West: How populism and EU-skepticism shape party support for Ukraine
Liesbet Hooghe, Gary Marks, Ryan Bakker, Seth Jolly, Jonathan Polk, et al.
(2024) European Union Politics, 25 p.459-482
ArticleTrade and the transnational cleavage in European party politics
Jonathan Polk, Guri Rosén
(2024) Journal of European Public Policy, 31 p.104-130
ArticleStructuring Intra-Party Politics : A Mixed-Method Study of Ideological and Hierarchical Factions in Parties
Ann-Kristin Kölln, Jonathan Polk
(2024) Comparative Political Studies, 57 p.1552-1585
ArticleMaking space: citizens, parties and interest groups in two ideological dimensions
Frida Boräng, Daniel Naurin, Jonathan Polk
(2024) Journal of European Public Policy, 31 p.1799-1830
ArticleAnalyzing the Cross-National Comparability of Party Positions on the Socio-Cultural and EU dimensions in Europe
Ryan Bakker, Seth Jolly, Jonathan Polk
(2022) Political Science Research and Methods, 10 p.408-418
ArticleContesting Covid: The ideological bases of partisan responses to the Covid-19 pandemic
Jan Rovny, Ryan Bakker, Liesbet Hooghe, Seth Jolly, Gary Marks, et al.
(2022) European Journal of Political Research, 61 p.1155-1164
ArticleChapel Hill Expert Survey trend file, 1999-2019
Seth Jolly, Ryan Bakker, Liesbet Hooghe, Gary Marks, Jonathan Polk, et al.
(2022) Electoral Studies, 75
Debate/Note/EditorialCongruence and Party Responsiveness in Western Europe in the 21st Century
Raimondas Ibenskas, Jonathan Polk
(2022) West European Politics, 45 p.201-222
ArticleParty Responsiveness to Public Opinion in Young Democracies
Raimondas Ibenskas, Jonathan Polk
(2022) Political Studies, 70 p.919–938
ArticleStill Blurry? : Economic Salience, Position, and Voting for Radical Right Parties in Western Europe
Jan Rovny, Jonathan Polk
(2020) European Journal of Political Research, 59 p.248-268
ArticleMultidimensional Incongruence, Political Disaffection, and Support for Anti-Establishment Parties
Ryan Bakker, Seth Jolly, Jonathan Polk
(2020) Journal of European Public Policy, 27 p.292-309
ArticleA Break in the Representative Chain : Party Members' Ideological Disagreement with Candidates and Demands for Intra-Party Democracy
Ann-Kristin Kölln, Jonathan Polk
(2019) Nordic Party Members: Linkages in Troubled Times
Book chapterParties' Ideological Representation in the Nordic Countries : Comparing Party Voters, Members and Candidates
Jonathan Polk, Ann-Kristin Kölln
(2019) Nordic Party Members: Linkages in Troubled Times
Book chapterNew Wine in Old Bottles : Explaining the Dimensional Structure of European Party Systems
Jan Rovny, Jonathan Polk
(2019) Party Politics, 25 p.12-24
ArticleMultidimensional Incongruence and Vote Switching in Europe
Ryan Bakker, Seth Jolly, Jonathan Polk
(2018) Public Choice, 176 p.267-296
ArticleElectoral infidelity : Why party members cast defecting votes
Jonathan Polk, Ann-Kristin Kölln
(2018) European Journal of Political Research, 57 p.539-560
ArticleWelfare Democracies and Multidimensional Party Competition in Europe
Jonathan Polk, Jan Rovny
(2018) Welfare Democracies and Party Politics
Book chapterAnti-Elite/Establishment Rhetoric and Party Positioning on European Integration
Jonathan Polk, Jan Rovny
(2017) Chinese Political Science Review, 2 p.356-371
ArticleWhat's Trust Got To Do With It? : The Effects of In-Group and Out-Group Trust on Conventional and Unconventional Political Participation
Markus Crepaz, Karen Bodnaruk Jazayeri, Jonathan Polk
(2017) Social Science Quarterly, 98 p.261-281
ArticleEmancipated party members : Examining ideological incongruence within political parties
Ann-Kristin Kölln, Jonathan Polk
(2017) Party Politics, 23 p.18-29
ArticleStepping in the Same River Twice : Stability Amidst Change in Eastern European Party Competition
Jan Rovny, Jonathan Polk
(2017) European Journal of Political Research, 56 p.188-198
ArticleExplaining the Salience of Anti-Elitism and Reducing Political Corruption for Political Parties in Europe with the 2014 Chapel Hill Expert Survey
Jonathan Polk, Jan Rovny, Ryan Bakker, Erica Edwards, Liesbet Hooghe, et al.
(2017) Research and Politics, 4 p.1-9
ArticleMeasuring party positions in Europe : The Chapel Hill expert survey trend file, 1999-2010
Ryan Bakker, Catherine de Vries, Erica Edwards, Liesbet Hooghe, Seth Jolly, et al.
(2015) Party Politics, 21 p.143-152
ArticleThe European Common Space : Extending the Use of Anchoring Vignettes
Ryan Bakker, Seth Jolly, Jonathan Polk, Keith Poole
(2014) Journal of Politics, 76 p.1089-1101
ArticleAnchoring the Experts : Using Vignettes to Compare Party Ideology Across Countries
Ryan Bakker, Erica Edwards, Seth Jolly, Jonathan Polk, Jan Rovny, et al.
(2014) Research and Politics, 1 p.1-8
ArticleTrust Matters : the Impact of In-group and Outgroup Trust on Nativism and Civicness
Markus Crepaz, Jonathan Polk, Ryan Bakker, Shane Singh
(2014) Social Science Quarterly, 95 p.938-959
ArticleCatch-All or Catch and Release? : The Electoral Consequences of Social Democratic Parties’ March to the Middle in Western Europe
Johannes Karreth, Jonathan Polk, Christopher Allen
(2013) Comparative Political Studies, 46 p.791-822
ArticleComplexity in the European Party Space : Exploring Dimensionality with Experts
Ryan Bakker, Seth Jolly, Jonathan Polk
(2012) European Union Politics, 13 p.219-245
Article
Introduction
Before joining the Department of Political Science at Lund University in 2021, I was an Associate Professor at the University of Copenhagen and the University of Gothenburg, where I received my docent qualification in 2017. I earned my Ph.D. in Political Science from the University of Georgia in 2012 and subsequently held a postdoctoral fellowship at the Centre for European Research, University of Gothenburg, from 2012 to 2014.