Welcome to my website!

I am a social scientist studying politics, governance, and public policy. Currently, I am Associate Professor at the Institute of Public Administration at Leiden University in The Netherlands. Formerly, I was Jean Monnet fellow at the Robert Schuman Centre for Advanced Studies at the European University Institute in Florence (2018/2019). Since September 2022, I am also a deputy-chair of the Standing Group on the European Union of the ECPR (European Consortium for Political Research). My main research interests are in European Union politics, comparative public policy, and research design. And democratization, decision making, data visualization, game theory, political representation, philosophy of science, institutional design, policy implementation, law and economics, international relations, immigration and asylum policy, statistics, post-communism, and more.

Here you can find more about my research projects, check out my publications and visualizations, and access the data I've collected and used. You can also find some info about the courses I teach.

Here is a complete, (occasionally) up-to-date CV (pdf). And a link to my Google Scholar profile with citation numbers. An overview of my peer review and editorial work is available at Publons.

I used to keep a blog on issues of research design in the social sciences, which I still occasionally update.

Bored with academia? Then check out my photos. Or see the movies I like. If you have even more time to waste, here is what I have recently found pinworthy on the Internet.

To get in touch, write me at

Research Design in Political Science (Political Analysis) now available!

My latest book on research design in political science, published by Palgrave Macmillan, is now available. Get it at: [,,,,,,, palgrave ].
You can find more about the book, including sample chapters here.

Recent and forthcoming events

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