8 IZA Discussion Papers
IZA Discussion Paper No. 17279
IZA Discussion Paper No. 15977
IZA Discussion Paper No. 10537
IZA Discussion Paper No. 5815
substantially revised version published in: Oxford Bulletin of Economics and Statistics, 2015, 77 (4), 512 - 541
IZA Discussion Paper No. 3861
published in: Economics of Transition, 2009, 17 (4), 629-659
IZA Discussion Paper No. 2650
published in: Annales d'Economie et de Statistique, 2008, 92/92, 427 - 451
IZA Discussion Paper No. 1935