85 IZA Discussion Papers
IZA Discussion Paper No. 3895
published in: Journal of the European Economic Association, 2009, 7(2-3), 235-266
IZA Discussion Paper No. 3627
IZA Discussion Paper No. 2994
published in: Annals of Economics and Statistics, 2013, 111/112, 35-70
IZA Discussion Paper No. 2583
IZA Discussion Paper No. 823