5 IZA Discussion Papers
IZA Discussion Paper No. 14992
IZA Discussion Paper No. 12425
IZA Discussion Paper No. 9620
published in: Japanese Economic Review, 2016, 67 (2), 150 - 168
IZA Discussion Paper No. 6126
published in: Annales d'Économie et de Statistique, 2012, 105-106, 35-54
IZA Discussion Paper No. 2946
published in: Oxford Economic Papers, 2009, 61(2), 240-274