1. Faculty of Social Sciences, Tampere University, Tampere, Finland
2. VATT Institute for Economic Research, Helsinki, Finland
3. University of Jyväskylä, School of Business and Economics, Jyväskylä, Finland
4. Labour Institute for Economic Research, Helsinki, Finland
5. Finnish Institute of Occupational Health, Helsinki, Finland
6. School of Social Policy, Sociology and Social Research, Cornwallis North East, University of Kent, Canterbury, Kent, UK