6 IZA Discussion Papers
IZA Discussion Paper No. 9187
Updated and replaced by "Before It Gets Better: The Short-Term Employment Costs of Regulatory Reforms", IZA Discussion Paper 11011, joint with F. Cingano
IZA Discussion Paper No. 5243
IZA Discussion Paper No. 3187
revised version published in: Journal of Comparative Economics, 2009, 37(3), 387-401
IZA Discussion Paper No. 1946
published in: Review of Economic Dynamics, 2009, 12, 479 - 504.
IZA Discussion Paper No. 957
IZA Discussion Paper No. 948
published in: J. Messina, C. Michelacci, J. Turunen and G. Zoega (eds.), Labour Market Adjustments in Europe, Edward Elgar 2006