1. Cluster of Excellence ‘The Politics of Inequality’, University of Konstanz, Konstanz, Germany
2. Department of Social and Political Sciences, University of Milano Statale, Milano, Italy
3. Department of History, Sociology, Empirical Educational Research and Sport Science, University of Konstanz, Konstanz, Germany
4. IZA, Bonn, Germany
5. Dondena, Bocconi University, Milano, Italy