124 IZA Discussion Papers
IZA Discussion Paper No. 1003
published in: Research in Labor Economics, 2010, 30,189-231
IZA Discussion Paper No. 883
published in: Labour Economics, 2004, 11 (6), 701-714
IZA Discussion Paper No. 875
revised version published in: European Journal of Law and Economics, 2006, 22, 49-71
IZA Discussion Paper No. 647
revised version published in: Journal of Economics and Management Strategy, 2005, 14 (1), 187-207