Present position

Since May 2014

Professor in Political Science at the Vrije Universiteit Amsterdam (tenured) – at VUA since July 2004.

Previous positions

Spring 2018

Visiting researcher at the Minda de Gunzburg Center for European Studies, Harvard University.


Scientific Council for Government Policy (WRR), The Hague

Research Fellow (part-time, seconded)

Project ‘Europe in the Netherlands’

June 2004

Summer School Instructor, Department of Political Science / European Studies Program, University of Victoria (BC), Canada.  

June 2002 - May 2004

Centre for European Policy Studies (CEPS), Brussels

Marie Curie Research Fellow, sponsored under the 5th Framework Programme of the European Community.  

Nov. 2001 - May 2002

University of Twente, Enschede

Post-doctoral researcher in Political Science

Jan. 1997 - Oct. 2001

Research voor Beleid, Leiden (NL)

1999-2001   Account manager economic policy research

1997-1999       Policy researcher                                             




Doctorate in the Political and Social Sciences, European University Institute, Florence (It.), 3 May 1997 (‘with distinction’). Ph.D.-thesis: “The Sediment of Reason; Basic Rights in Germany and Great Britain”.

Committee: Steven Lukes (Political Science, EUI, Florence, promotor), Karl-Heinz Ladeur (Law, EUI/ Hamburg, co-promotor), Massimo LaTorre (EUI, Law) and Albrecht Wellmer (Philosophy, FU Berlin).

Spring 1995

Humboldt Universität Berlin, Visiting Research Student.


London School of Economics, General Course in Government.


University of Amsterdam. MA in Political Science.

Awarded ‘cum laude’,  August 1993.


Grants received


Project partner in RECONNECT (EC research project under H2020) (2018-2021)


Project partner in Erasmus Academic Network on Parliamentary Democracy in Europe (PADEMIA) (2013-2016).


‘Research talent’ Netherlands Organisation for Scientific Research (NWO) PhD-project ‘Normative power and military means’.


Faculty Fellowship VU Faculty of Social Science (CCSS).


‘Open Competition’ Netherlands Organisation for Scientific Research (NWO) PhD-project ‘Senior Commission Officials’ Role Perceptions in a Changing Europe’, (co-applicant with prof. L. Hooghe).


Project partner in RECON (EC Integrated Project under FP6) (2007-2011).


Faculty Fellowship VU Faculty of Social Science (CCSS).


Secondment at WRR Project ‘Europe in the Netherlands’.


EC Marie Curie Postdoctoral Research Fellowship (2002-2004)


Services to the profession

2010 - 2012

Jury member of the Dissertation Prize in Political Science of the Dutch Political Science Association (NKWP) / Jury chair in 2012.

2007 - 2011

Co-director of RECON Work package2 ‘The Constitutionalisation of the EU, the Europeanisation of National Constitutions, and Constitutionalism Compared’.

2007 - 2011

Editorial Board of the RECON Online Working Papers Series.

2004 - 2007

Editorial Board of Res Publica, the Belgian Journal of Pol. Science.


University administration

2019 – 2021

Director VU School of Governance

2017 - 2019

Member of the Board of the Faculty of Social Sciences, research portfolio.

2013 - 2016

Co-Director of the Amsterdam Centre for Contemporary European Studies (ACCESS EUROPE)

2013 - 2014

Department of Political Science and Public Administration

Member of the Management Team

Director of the MSc Political Science

2010 - 2013

Department of Political Science

Member of the Management Team

From September 2012 onwards: Research Manager

2010 - 2012: Teaching Manager

2007 – 2010

Political Science delegate in the Faculty Research Committee

2005 – 2010

Chair of the Political Science Teaching Committee

Since 2004

Various incidental committee memberships at departmental, faculty and university level.


Postgraduate Supervision


PhD Supervision

-          Current supervisees: Stefano Merlo, Diederik Stadig, Steven Otterman and Louis Middelkoop

-          Valentin Kreilinger (Hertie School of Governance, Berlin, 3rd supervisor since 2016)

-          Yoav Shemer-Kunz (co-tutelle with Université de Strasbourg – co-promotor prof. N. Kauppi), Parties’ Transnational Coordination in the EU after Lisbon. The Greens and beyond. Defended 19/5/2017.

-          Bart Bes (with prof. L. Hooghe), ‘Under Pressure! The institutinal role conceptions of Commission Officials in an era of politicization’, Defended 22/3/2017, now postdoc Lund Universitity.

-          Trineke Palm, ‘Normative Power and Military Means. The evolving character of the EU’s international power’. Defended 20/3/2017, now postdoc at Utrecht University.

-          Jérôme Schäfer (2010-12, transferred to Yale University), co-supervisor with prof. L. Hooghe


Postdoc supervisor

-          Eric Miklin (2008-2010, now Assistant Professor at the Universität Salzburg)

-          Jan Pieter Beetz (since 2016)


PhD Examiner

-          Jilong Wang VU Amsterdam, 2022), promotor B. van Apeldoorn

-          Ivana Skazlic (UVienna, 2022), promotor J. Pollak

-          Xue Mi (VU Amsterdam, 2022), promotor W. Wagner

-          Lucy Kinski (UVienna, 2018), promotor J. Pollak

-          Mariken van der Velden (VU Amsterdam, 2017), promotor B. Vis

-          Tom Theuns (SciencePo Paris, 2017)

-          Saskia Hollander (Nijmegen University, 2016)

-          Falk Ostermann (VU Amsterdam, 2015)

-          Marjolein Meijer (Antwerpen, 2012)

-          Pieter de Wilde (Oslo, 2010)

-          Kathrin Packham (Bremen, 2009)





Since 2004

Courses ‘Introduction Political Science’ (BA-1), ‘Political Theory’ (BA-2), 'Reading course in Advanced Political Theory: Justice and Global Justice' (BA-3), ‘Meta-Theory and Research Methods in Political Science’ (MSc), 'Institutions and Governance in the European Union' (MSc), Thesis-seminar (MSc), Thesis supervision (Doctoraal, BA, MSc).

July 2006

Lectures on the constitutionalisation and democratisation of the EU and a panel appearance at the ‘Brave New Europe’ Summer School of the University of Ljubljana (Slovenia), 4/5 July 2006.

June 2004

Summer School Instructor, Department of Political Science / European Studies Centre, University of Victoria (BC), Canada.  

September 2003

Guest lectures on ‘the Future of the EU’ for the ULB/Solvay MBA-program.

Summer 2003 

Hosting of a BA-student from Harvard University as a research assistant at CEPS.


Class teaching of a 2nd year undergraduate course at the University of Twente on ‘Democratic theory and practice’.

1999 - 2001

Responsible for a team of ± four university-educated policy researchers at Research voor Beleid.  


Media experience

Commented on EU affairs for a.o. BBC, International Herald Tribune, Wall Street Journal Europe, Newsweek, Reuters, Le Monde, AFP, WDR, Deutsche Welle, Helsingin Sanomat, Morgenbladet, Jyllands-Posten, NL Radio 1 Journaal, de Volkskrant, Iranian Student News Agency/ World news service, Radio Free Europe, Greek national radio, Rzeczpospolita, Polish Press Agency, Washington Times.

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Language Skills

Dutch - Native language

English - Working Language

Fair command of German and Italian

Passive command of French


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