3 IZA Discussion Papers
IZA Discussion Paper No. 7868
revised version published in: Journal of Chinese Economic and Business Studies, 2024, 22 (2), 205 - 230
IZA Discussion Paper No. 6363
Living and Working in Ethnic Enclaves: Language Proficiency of Immigrants in U.S. Metropolitan Areas
published in: Papers in Regional Science, 2013, 92(2), 305-328
IZA Discussion Paper No. 4521
published in: American Economic Journal: Applied Economics, 2011, 3 (2), 67-95