James Raymo is Professor of Sociology and the Henry Wendt III '55 Professor of East Asian Studies at Princeton University. He is Social Demographer whose research focuses on documenting and understanding the causes and potential consequences of demographic changes associated with population aging in Japan. His published research includes analyses of marriage timing, divorce, recession and fertility, marriage and womens health, single mothers well-being, living alone, family change and social inequality, employment and health at older ages, and regional differences in health at older ages. He has published two

earlier manuscripts in the Springer Population Studies of Japan Series. The first (2017) was an evaluation of the relevance of the notion of "diverging destinies" in Japan and was co-authored with Miho Iwasawa. The second (2022) was an overview of patterns of educational assortative mating in Japan and was co-authored with Fumiya Uchikoshi. He has published over 60 scientific articles in leading international journals, serves on the editorial board of four population studies journals, is current Vice-President of the Population Association of America, and has mentored and collaborated with numerous scholars in Japan.

Shohei Yoda is Senior Researcher in the Department of Population Dynamics Research at the National Institute of Population and Social Security Research. His research focuses on family change and differentials. He has published some of the only studies of divorce and remarriage based on population data in Japan. In addition to his research, he is also engaged in conducting of the Japanese National Fertility Surveys and preparation of population projections. He has published his research in leading international journals of population studies.

Miho Iwasawa is Director of the Department of Population Dynamics Research at the National Institute of Population and Social Security Research. She is one of the most prolific Demographers in Japan, having published dozens of research articles in leading demography journals in Japan and internationally. Her research focuses primarily on marriage and fertility and has also written on cohabitation and divorce. She published on earlier manuscript in the Springer Population Studies of Japan Series, Diverging Destinies: The Japanese Case co-authored with James Raymo. In addition to her research, he is also engaged in conducting of the Japanese National Fertility Surveys and preparation of population projections.

Setsuya Fukuda is Senior Researcher in the Department of Research Planning and Coordination at the National Institute of Population and Social Security Research. He is Social Demographer whose research focuses on the inter-relationships between gender, family formation, and family policy. He has published his research in leading demography journals in Japan and internationally. He also plays a central role in two large international projects: one is the National Transfer Accounts Project and the other focuses on domestic time use and automation of housework.

Erika Termato is Graduate Student in the School of Education at the University of Tokyo. Her research focuses on the sociology of education, gender, and the labor market.

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