4 IZA Discussion Papers
IZA Discussion Paper No. 11096
published in: Review of Economics (Jahrbuch für Wirtschaftswissenschaften), 2017, 68 (3), 167-179
IZA Discussion Paper No. 9223
published in: British Journal of Industrial Relations, 2017, 55 (4), 688-715
IZA Discussion Paper No. 7961
IZA Discussion Paper No. 7806
revised version published in: RAND Journal of Economics, 2015, 46 (4), 777-790