1. Department of Media and Social Sciences, University of Stavanger, Stavanger, Norway
2. Swiss Graduate School of Public Administration (IDHEAP), University of Lausanne, Lausanne, Switzerland
3. Swiss Forum for Migration and Population Studies and NCCR – on the move, University of Neuchâtel, Neuchâtel, Switzerland
4. Department of Political Science and Public Administration, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands