1. Department of Econometrics, Statistics and Applied Economics (Public Policy Unit), Universitat de Barcelona, Barcelona, Spain
2. Public Economics Unit, Faculty of Economics & Management, Universität Kassel, Kassel, Germany
3. Department of Political Science and Management, Universitetet I Agder, Kristiansand, Norway
4. Department of Political and Social Sciences, Università Di Bologna, Bologna, Italy
5. Department of Politics and European Studies, Palacký University Olomouc, Olomouc, Czech Republic
6. Division for Social and Economic ResearchUniversity of Environmental and Life Sciences in Wrocław: Institute of Spatial Management, Wrocław, Poland
7. Department of Political Science, Campus de Gualtar, Universidade Do Minho, Braga, Portugal
8. Institute for Management Research, Radboud Universiteit Nijmegen: Institute for Management Research, Nijmegen, The Netherlands