1. University of Amsterdam; Netherlands
2. University of Antwerp; Belgium
3. University of North Carolina; Chapel Hill NC USA
4. University of Edinburgh; UK
5. University of Konstanz; Germany
6. CEVIPOF, Sciences Po; France
7. University of Barcelona and IBEI; Spain
8. Sciences Po Paris; France
9. University of Southampton; UK
10. Aarhus University; Denmark
11. Universìty of Barcelona; Spain
12. University of Geneva; Switzerland
13. University of Lausanne; Switzerland