1. International Institute for Applied Systems Analysis (IIASA) Laxenburg Austria
2. Department of Economics Vienna University of Economics and Business (WU) Vienna Austria
3. Wittgenstein Centre for Demography and Global Human Capital IIASA, VID/ÖAW, University of Vienna Vienna Austria
4. Austrian Institute of Economic Research (WIFO) Wien Austria
5. CESifo Munich Germany
6. Institute for Advanced Studies (IHS) Vienna Austria
7. Department of Economics, Faculty of National Economy University of Economics in Bratislava Bratislava Slovakia
8. Environmental Change Institute, School of Geography and Environment University of Oxford Oxford UK