2 IZA Discussion Papers
IZA Discussion Paper No. 9343
published in: B. Gustafsson, R. Hasmath. S. Ding (eds), Ethnicity and Inequality in China, New York and Oxford: Routledge, 2021, 82-109. / published in Chinese, Beijing, 2017, 56-83.
IZA Discussion Paper No. 8194
published in: Eurasian Geography and Economics, 2015, 56 (1), 70 - 88