| Research Fellow in the labour economics programme of the Centre for Economic Policy Research in London (CEPR) |
| Research Professor at the Institute for Advanced Studies, Vienna (IHS) |
Council Member for the European Society for Population Economics (ESPE), Secretary 1998-2004, President ESPE 2011
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| Research Fellow with the Institut zur Zukunft der Arbeit, Bonn (IZA) |
| Member in the research group on "Public funding and private returns to education" (PURE); see European Commission Briefing Paper on the Project |
| Co-Organizer of the Austrian Labor Workshop |
| Austrian co-ordinator of the IWFP (International Wage Flexibility Project), initiated by the FRB NY, the Brookings Institution and the ECB |
| Austrian co-ordinator of the SHARE Project (Survey of Health, Ageing, and Retirement in Europe) |
| Advisory board member for the Portuguese Centre of Applied Economics Studies of the Atlantic CEEAPLA |
| Member of the Executive Committee of the European Association of Labour Economists EALE |
| Advisory Board member for the "Institut für Arbeitsmarkt und Berufsforschung (Nürnberg) IAB |
| Associate editor: e-conomics: The open-access, open-assessment e-journal |
| Coordinator of National Research Center NRN "The Austrian Center for Labor Economics and the Welfare State |