66 IZA Discussion Papers
IZA Discussion Paper No. 3553
published in: Economic Inquiry, 2012, 51 (3), 1829-1848
IZA Discussion Paper No. 3321
superseeded by IZA DP 5575 and the published version.
IZA Discussion Paper No. 3173
published in: Journal of the Royal Statistical Society, Series A (Statistics in Society), 2009, 172 (2), 339-360
IZA Discussion Paper No. 1424
revised version published in: IZA Journal of Labor Policy 2013, 2:15
IZA Discussion Paper No. 1155
IZA Discussion Paper No. 763
revised version published in: Oxford Bulletin of Economics and Statistics, 2006, 68 (3), 371-383