65 IZA Discussion Papers
IZA Discussion Paper No. 1889
published in: Journal of Public Economics, 2008, 92 (3-4), 915-923
IZA Discussion Paper No. 1438
published in: Journal of Socio-Economics, 2006, 35 (2), 180-196
IZA Discussion Paper No. 1067
published in: Labor Markets and Institutions, Santiago: Central Bank of Chile 2005; 281-300
IZA Discussion Paper No. 547
IZA Discussion Paper No. 388
published in: Canadian Journal of Economics, 2007, 40 (2), 445-467