1. Institute of Population Studies, Russian Academy of Sciences, 32 Nakhimovsky Prospect, Office 1111, Moscow, 117218, Russia
2. Department of Economic Sociology, State University - Higher School of Economics, 3 Kochnovski Proezd, Office 406, Moscow, 125319, Russia
3. Department of Socioeconomic Problems of Regional Development, Institute of Population Studies, Russian Academy of Sciences, 32 Nakhimovsky Prospect, Office 1111, Moscow, 117218, Russia