3 IZA Discussion Papers
IZA Discussion Paper No. 14449
IZA Discussion Paper No. 9500
published as 'The impact of exposure to missionaries on the English language proficiency and earnings of immigrants in the USA' in: International Journal of Manpower, 2019, 40 (4), 574 - 590
IZA Discussion Paper No. 6854
published in: Contemporary Jewry, 2015, 35 (3), 191 - 209