1. Department of Social and Political Sciences and Carlo F. Dondena Centre for Research on Social Dynamics and Public Policy, Bocconi University, Milan, Italy
2. Institute of Sociology and Social Psychology, University of Cologne, Germany
3. Netherlands Interdisciplinary Demographic Institute (NIDI/KNAW), The Hague, The Netherlands
4. Department of Epidemiology, University Medical Centre Groningen, University of Groningen, The Netherlands
5. Department for Sociology, Vrije Universiteit Amsterdam, The Netherlands