6 IZA Discussion Papers
IZA Discussion Paper No. 12887
forthcoming in: Labour Economics, 2021
IZA Discussion Paper No. 7904
IZA Discussion Paper No. 7904
IZA Discussion Paper No. 6082
Published in Eastern Economic Journal, 2013
IZA Discussion Paper No. 3898
published in: Scientometrics, 2010, 84 (3), 621-637
IZA Discussion Paper No. 2070
published in: Economica, 2007, 74 (293), 21-31