5 IZA Discussion Papers
IZA Discussion Paper No. 15075
IZA Discussion Paper No. 14672
IZA Discussion Paper No. 9287
published in: Population Research and Policy Review, 2016, 35 (4), 471-500
IZA Discussion Paper No. 7748
published in: Singapore Economic Review, 2016, 61(5), 1-38
IZA Discussion Paper No. 5526
published in: Econmic Development and Cultural Change, 2014, 62 (3), 519-36.