2nd International Workshop on Social Stratification and Mobility

Published

June 28, 2025

Social Stratification and Mobility workshop organized by the SSM2025 research group, The University of Tokyo.

Venue: Sanjo Conference Hall (Main conference room, 2nd floor)

Saturday, June 28

13:00-13:30 Registration

13:30 Welcome (Sho Fujihara, The University of Tokyo)

Introduction of two speakers (Fumiya Uchikoshi, Harvard University)

13:45 Plenary session 1 (Chair: Fumiya Uchikoshi, Harvard University)

Emma Zang, “The Impact of the 2011 Judicial Interpretation of the Chinese Marriage Law”

14:25 Discussion (Takuma Kamada, The University of Osaka)

14:35 Reply/Q&A

Emma Zang is an Assistant Professor of Sociology at Yale University, with secondary appointments in Biostatistics and Global Affairs. Her research focuses on family demography, aging, health disparities, and social policy, using advanced quantitative and computational methods. She leads several interdisciplinary projects funded by NIH and other agencies, and her work has been featured in leading academic journals and major media outlets. She received her Ph.D. in Public Policy from Duke University.

Takuma Kamada is an Associate Professor at the University of Osaka, Osaka School of International Public Policy (OSIPP) in Japan. His research seeks to understand the causes and consequences of crime and its enforcement. In particular, he studies (i) how both criminal and non-criminal justice policies affect crime and (ii) how drug epidemics shape cities and neighborhoods, with a particular emphasis on illegal markets in different ethno-racial contexts.

14:45-14:55 Break

14:55-15:45 Regular session 1: Social Network and Regions (Chair: Kikuko Nagayoshi, The University of Tokyo)

  1. Hao Liang, Cornell University

Network Integration: Interethnic and Coethnic Social Networks and Sequential Residential Patterns

  1. Takuma Kamada, The University of Osaka

Blessing or Curse for Organized Crime? The Long-Term Effects of the Energy Transition from Coal to Oil on the Yakuza

15:45-16:00 Coffee break

16:00 Plenary session 2 (Chair: Sho Fujihara, The University of Tokyo)

Ian Lundberg, “Non-existent Outcomes in Research on Inequality: A Causal Approach”

16:40 Discussion (Shoki Okubo, Toyo University)

16:50 Reply/Q&A

Ian Lundberg is an Assistant Professor in the Department of Sociology at UCLA, where he co-directs the Inequality Data Science Lab and is an affiliate of the California Center for Population Research and the Center for Social Statistics. He received a PhD in sociology and social policy at Princeton University in 2021. Ian’s research develops statistical methods to answer new questions about inequality and social stratification, often focusing on causal inference.

Shoki Okubo is an Assistant Professor of Sociology at Toyo University in Japan. His research focuses on three main areas: (1) improving the internal and external validity of survey statistics and methodology; (2) advancing the theory and application of causal inference; and (3) examining how long-term care and health insurance systems in Japan influence both the providers and recipients of care and medical services. He received his Ph.D. in Human Sciences from Osaka University.

17:00-17:10 Break

17:10-18:10 Poster session

  1. Jiajie Zhang, The University of Tokyo

The Impact of Precarious Employment on Gender and Family Attitudes in Japan: A Life Course Perspective

  1. Yuki Torii, Rikkyo University

Does a High-Class First Job Lead to Rewarding Work in Middle Age? Intragenerational Mobility Effect on Effort-Reward Imbalance in Japan

  1. Rantaro Nasu, The University of Tokyo

The Social Prestige of Non-Regular Employment: Status Evaluations and the Criteria Behind Them

  1. Taichi Morisaka, Tohoku University

Framing of Educational Inequality and Its Impact on Public Attitudes: Evidence from an Online Survey Experiment

  1. Teruki Sanada, Mukogawa Women’s University

Paths to Privilege? Unpacking the Cumulative Impact of Shadow Education through Causal Mediation Analysis

  1. Shingo Nitta, Japan Society for Promotion of Science, Gakushuin University

Intercohort and Intracohort Dynamics of Wealth Inequality in Old Age: An International Profile

  1. Minami Shimosegawa & Kohei Toyonaga, Sakushin Gakuin University / Kindai University

Just One More Year? The Impact of Grade Repetition on Employer’s Evaluations in Japan

  1. Kentaro Kamada, The University of Tokyo

Shadow Education as Neither Equalizer nor Stratifier: Its Role in Educational Inequality in Japan

  1. Misaki Matano, Japan Women’s University

(Co-author: Hiroshi Ishida, The University of Tokyo)

Educational Investment across Multiple Generations: The Impact of Grandparental Support on Grandchildren’s Educational Achievement

  1. Tomoaki Nishio, Tohoku University

Trends in Entry into Self-Employment as an Alternative Route for Less-Educated People in Postwar Japan

  1. Taeeun Kim, The University of Tokyo

Gender Inequality in Later Life Time Use: Insights from Unpaid Labor

  1. Tetsuji Yamaguchi, The University of Tokyo

The Influence of “Significant Others” on Students’ Occupational Aspiration

  1. Sho Fujihara, The University of Tokyo

To What Extent Does Reducing Educational Inequality Decrease Occupational Inequality by Social Origins: A Causal Decomposition Analysis

  1. Tate Kihara, Keio University

International Mobility Aspirations in Contemporary Japan: The Role of Age, Period and Cohort

18:30-20:30 Reception (Sanjo Conference Hall, Lounge, 1st floor)

Sunday, June 29

9:15-9:45 Registration

9:45-10:35 Regular session 2: Education (Chair: Hirofumi Taki, The University of Tokyo)

  1. Satoshi Araki, University of Hong Kong

Education, Skills, and Intergenerational Inequality in Status Attainment: Causal Mediation Analysis and Typology of 23 OECD Countries

  1. Fumiya Uchikoshi, Harvard University

(Co-author: Lai Wei, The University of Hong Kong)

Does College Education Mitigate Assortative Mating by Social Origins?

10:35-10:50 Coffee Break

10:50-11:40 Regular session 3: Gender Inequality in Employment (Chair: Mei Kagawa, Daito Bunka University)

  1. Ryota Mugiyama, Gakushuin University

(Co-authors: Rantaro Nasu, The University of Tokyo & Yuriko Morikawa, The University of Tokyo)

The Weight of Gendered Expectation: Pre-birth Endorsement of Intensive Mothering Ideologies and the Motherhood Penalty

  1. Yuriko Morikawa, The University of Tokyo

(Co-author: Hiroki Takikawa, The University of Tokyo)

Cultural Devaluation within Occupations: A Demand and Supply-Side Analysis in Japan

11:45 Wrap up