3 IZA Discussion Papers
IZA Discussion Paper No. 8724
published in: Labour Economics, 2016, 42, 151-158
IZA Discussion Paper No. 3645
published in: Management Science, 2011, 56(8), 1398-1414
IZA Discussion Paper No. 2142
published in: International Journal of Manpower, 2008, 20 (1), 8-29