8 IZA Discussion Papers
IZA Discussion Paper No. 15056
IZA Discussion Paper No. 10310
published in: World Development, 2018, 103, 100 - 118
IZA Discussion Paper No. 7064
IZA Discussion Paper No. 5594
published in: Economic Journal, 2017, 127 (604), 1874-1905.
IZA Discussion Paper No. 4768
published in: Economics Letters, 2010, 108 (2), 237-241
IZA Discussion Paper No. 4189
published in: CESifo Economic Studies, 2011, 57 (2), 245-258
IZA Discussion Paper No. 3892
IZA Discussion Paper No. 2454
published in American Economic Review, 2009, 99 (5), 1689-1713