4 IZA Discussion Papers
IZA Discussion Paper No. 14329
IZA Discussion Paper No. 8806
IZA Discussion Paper No. 8150
published in: Journal of Labor Economics, 2016, 34 (1 Part 1), 107 - 160
IZA Discussion Paper No. 4799
published as 'Education and Employment Protection' in: Labour Economics, 2013, 20, 3-23