Abstract
This study focuses on the social integration of the pre-1970 first-generation migrants in reformist China, who were born before the year 1970 while getting old in the destination cities. The pre-1970 first-generation migrants are not a homogeneous group but are composed of: (a) those over 45 years old and still working but facing age discrimination; and (b) the elderly granny as nanny assuming the domestic and child-care work for their sons or daughters in the destination cities. We conceptualized and re-defined the aging migrants' social integration into three dimensions (i.e., participation practices, communication contacts, and subjective perceptions), and used the 2017 Migrant Dynamics Monitoring Survey (MDMS) data from Beijing to measure and explain the varied integration levels among a total of 1267 aging migrant samples in the Beijing metropolis. It is proven that housing tenure matters and housing tenure entitlement would be conductive to beefing up aging migrants' integration. However, informal housing should not be "stigmatized" as a segregated world, since those dwelling in the informal housing have reported a higher probability of perceiving a fully integrated status (namely subjective well-being, SWB) than those living in the dormitory-like housing. Additionally, an employment-income paradox is found, which shows that higher economic achievement is NOT equivalent to a higher social integration status for the aging migrants.