1. SEW-HSG, University of St.Gallen , St.Gallen , Switzerland
2. UniDistance Suisse , Brig , Switzerland
3. CESifo , Munich , Germany
4. CFS , Frankfurt am Main , Germany
5. IZA , Bonn , Germany
6. Swiss Finance Institute , Zurich , Switzerland
7. CEPR , London , UK
8. IAB , Nürnberg , Germany
9. RWI , Essen , Germany