Does birthplace affect intergenerational social mobility of migrants in urban escalators? Evidence from China

There is a growing body of literature on the effects of escalator regions on intergenerational social mobility (ISM) of migrants. Nevertheless, the role of migrant origins in migration outcomes remain neglected. To address this gap, this study attempts to investigate whether migrants' birthplaces continue to have an impact after they move to escalator regions and the mechanism of this impact. Using data from the 2010, 2013, and 2015 Chinese General Social Survey, our findings suggest that the effect of escalator regions on migrants' ISM varies according to the size of their birthplace. Furthermore, the birthplace effect on migrants' ISM when relocating to escalator regions is partially mediated by the birthplace effect on education. Finally, it was found that this birthplace effect varies according to dynamic human capital; migrants with high levels of dynamic human capital can overcome the birthplace effect after relocating to escalator regions.