Research Activities

Research Projects 2023

Evolving Migrants: How Family Migration Shapes Economy and Society


An important issue in policy debates around international migration is how the gains and costs from immigration are being broadly shared. The gains and costs crucially relate to household structures of foreign population which may change overtime. The aim of this project “Evolving Migrants” is to study the transition from influx of single migrant workers to immigration of families and household formation of immigrants.

However family migration broadly affect economy and society in host countries, it is not clear how changes in household characteristics of foreign population affect gains and costs from immigration. The project empirically characterizes changes and diversity in household behavior of foreign workers in Japan last four decades. The project also theoretically develops a collective household model of foreign population to understand the impacts of rise of foreign population from following channels of household decisions: bargaining, intrahousehold resource allocation, outsourcing of home production, housing, location decisions, consumption, childcare, education, or cultural production. Our alternative model incorporates these realistic and multi-dimensional features of longer-term households decisions of foreign population. To contribute to the Japan immigration policy, we combine qualitative analysis with quantitative research examining how family migration reshapes economy and society under the COVID-19 Pandemic in Japan.


April 2022 - March 2024

Role Member
[ Organizer ] Machikita, Tomohiro(Kyoto University Associate Professor)
[ Co-researcher ] Yamaguchi, Mami
[ Co-researcher ] Hatsukano, Naomi
[ Co-researcher ] Yamada, Nanae
[ Co-researcher ] Yang Liu(Research Institute of Economy, Trade and Industry (RIETI) Fellow)

*Affiliations are as of April 2023.

Expected Outcome
  • The Ajia Keizai