3 IZA Discussion Papers
IZA Discussion Paper No. 7893
published in: Economics and Human Biology, 2015, 17, 116-128.
IZA Discussion Paper No. 6432
published in: Econometric Reviews, 2015, 34 (6-10), 1089-1117
IZA Discussion Paper No. 1240
published in: Empirical Economics, 2021, 60, 13–50