4 IZA Discussion Papers
IZA Discussion Paper No. 11590
forthcoming in: Journal of the European Economic Association (final version)
IZA Discussion Paper No. 10226
published in: Journal of Population Economics, 2017, 49, 108 - 122 [Online Appendix]
IZA Discussion Paper No. 10148
IZA Discussion Paper No. 2922
revised version published in: European Economic Review, 2011, 55 (4), 535-553