European Policy Centre (EPC, Brussels), the Centre for Higher Education and Work (University of Kassel, Germany), the Centre for Social Policy (KEKMOKOP, Panteion University, Greece), the Institute of Education (University of London, United Kingdom), the Institut de Recherche en l'Economie de l'Education (IREDU, Université de Bourgogne, France), the Departmento de Economia Aplicada (University of Valencia, Spain), the Education Policy Centre (Charles University, Czech Republic), the National Assessment and Examinations Service-Ministry of Education (Romania), IFAPLAN (Germany), the University of Stirling (United Kingdom), the Université de Nanterre (France), the Université de Sciences et de Technologie de Lille (USTL, France), SLU Kontakt Landsbygd-Swedish University of Agricultural Sciences (Sweden), CHEPS (University of Twente, The Netherlands)