KEIO RESEARCHERS INFORMATION SYSTEM

Career 【 Display / hide 】

Career 【 Display / hide 】

• 2023.04

  -

  2023.08

  Japan Society for the Promotion of Science, 東京大学社会科学研究所, 特別研究員PD

• 2023.09

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  Present

  Keio University, Graduate School of Media and Governance | Faculty of Policy Management, Assistant Professor

• 2025.07

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  Present

  International Research Center for Japanese Studies, Team Researcher

• 2025.09

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  Present

  University of Pennsylvania, Population Studies Center, Non-resident Visiting Scholar

Academic Background 【 Display / hide 】

Academic Background 【 Display / hide 】

• 2010.04

  -

  2012.03

  The University of Tokyo, 教養学部文科Ⅲ類

• 2012.04

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  2015.03

  The University of Tokyo, 文学部行動文化学科社会学専修課程

• 2015.04

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  2017.03

  東京大学大学院, 教育学研究科比較教育社会学コース修士課程

• 2017.09

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  2023.05

  ブラウン大学大学院, 社会学研究科Ph.D.課程

Academic Degrees 【 Display / hide 】

Academic Degrees 【 Display / hide 】

• Ph.D. in Sociology, Brown University, 2023.05

Licenses and Qualifications 【 Display / hide 】

Licenses and Qualifications 【 Display / hide 】

• The Certificate of Advanced Social Researcher, 2017.06

Research Areas 【 Display / hide 】

Research Areas 【 Display / hide 】

• Humanities & Social Sciences / Sociology

Research Keywords 【 Display / hide 】

Research Keywords 【 Display / hide 】

• 社会学

• 社会階層

• 人口学

• 国際移動

• 教育社会学

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Books 【 Display / hide 】

Books 【 Display / hide 】

• 永吉希久子編『日本の移民統合 : 全国調査から見る現況と障壁』

  木原盾, 明石書店, 2021.06,  Page： 280

  Scope: 誰が永住を予定しているのか――日本で暮らす移民の滞在予定,  Contact page： pp.206-229

  • CiNii Research

• 恒吉僚子・額賀美紗子編『新グローバル時代に挑む日本の教育: 多文化社会を考える比較教育学の視座』

  木原盾, 東京大学出版会, 2021.06,  Page： 237

  Scope: 移民の子どもの定量的研究の現状と課題――日米比較から,  Contact page： pp.22-23

  • CiNii Research

• Tsuneyoshi, Ryoko (Ed.) Globalization and Japanese "Exceptionalism" in Education: Insiders' Views into a Changing System (Routledge Research in International and Comparative Education)

  Tsuneyoshi Ryoko, Fumiko Takahashi, Hideki Ito, Seulbi Lee, Maiko Sumino, Tate Kihara, Satsuki Kubodera, Hikaru Ishiwata, Routledge, 2017.09,  Page： 240

  Scope: Japanese schooling and the global and multicultural challenge: Globalization from below,  Contact page： pp.190-213

• 園田茂人編『連携と離反の東アジア』

  木原盾 , 上野雅哉 , 川添真友, 勁草書房, 2015.03,  Page： 276

  Scope: 越境する中国への受容と反発──アジア六カ国のデータから問い直す接触仮説,  Contact page： pp.87-109

  • CiNii Research

Papers 【 Display / hide 】

Papers 【 Display / hide 】

• Social Mobility Across the Pacific: An Analysis of Japanese Americans in the Continental United States

  Tate Kihara

  Demography (Duke University Press)  61 ( 3 ) 849 - 878 2024

  Research paper (scientific journal), Single Work, Accepted

  　View Summary

  The impact of immigrant parents' premigration family background on their second-generation children residing in destination countries remains underexplored in the literature on historical social mobility. Using multigenerational historical survey records from the Japanese American Research Project, this study investigates the influence of premigration socioeconomic and cultural background of Japan-born grandparents and parents on the social mobility of second-generation Japanese Americans born in the continental United States in the early twentieth century. The analysis reveals the enduring effects of family premigration socioeconomic status, as indicated by occupation and education, and culture conducive to upward mobility, proxied by samurai ancestry, on second-generation Japanese Americans' educational and income levels. These effects may extend back to their nonmigrant grandparents and possibly contrast with their European second-generation immigrant counterparts, who typically experienced upward mobility regardless of their family background. The results point to the critical role of origin-country socioeconomic status and culture in immigrant social mobility research, particularly for populations whose negative reception has hindered their resource access in their new countries.

  • Access to Document (DOI)

• Economic achievement of immigrants in Japan: Examining the role of country‐of‐origin and host‐country‐specific human capital in an inflexible labor market

  Kikuko Nagayoshi, Tate Kihara

  Japanese Journal of Sociology (Wiley)  32 ( 1 ) 69 - 95 2023

  Research paper (scientific journal), Joint Work, Accepted,  ISSN  2769-1365

  　View Summary

  The economic integration of immigrants is a salient social issue in Japan. Although the US immigration literature has stressed the importance of host-country-specific human capital over country-of-origin human capital for immigrants, previous studies in Japan have shown mixed results about the effects of these two types of human capital on the economic integration of immigrants. The mixed results might be because previous studies focused on only specific immigrant groups (with regard to nationalities, cities, and visa status), human capital variables, and dimensions of economic achievements in the Japanese labor market. The segmented nature of the Japanese labor market structure and immigration policies create different pathways to “economic achievements” of immigrants depending on the dimension of “economic achievements” studied. By conducting a nationally representative social survey of Japanese immigrants, we examined the association between the two types of human capital (i.e., country-of-origin and host-country-specific) and the three indicators of labor market success: employment status and firm size, occupational status, and income. Our results indicate that host-country-specific human capital in the form of higher education and language proficiency is important for all three indicators of economic achievement in Japan, while country-of-origin human capital in the form of higher education and vocational skills is transferable to some extent. Our results suggest that the significance of human capital in immigrants' economic success is determined not only by the structure of the labor market but also by immigration policies.

  • Access to Document (DOI)

• The Life Course Origins of the Immigrant Advantage? Parental Nativity, Parental Education, and Academic Achievement Gaps From Kindergarten to High School in the United States

  Tate Kihara

  International Migration Review (SAGE Publications)  56 ( 2 ) 463 - 498 2022

  Research paper (scientific journal), Single Work, Accepted,  ISSN  0197-9183

  　View Summary

  In the United States, there is a wide academic achievement gap, beginning in early childhood, between children with more and less educated parents. However, we know little about the differences in size and trajectories of achievement gaps associated with parental education and nativity. Drawing on two US education datasets that enable me to follow a cohort of children from kindergarten to high school, I estimate the size and trajectories of standardized test-score gaps associated with parental education, separately for children of native-born and immigrant parents. I find that the test-score gap between children with more and less educated native-born parents stays wide and stable from kindergarten entry to high school. In contrast, the test-score gap between children with more and less educated immigrant parents is narrower in kindergarten because of higher achievement of children with less educated immigrant parents, compared to their counterparts with less educated native-born parents. Moreover, the gap between more and less educated immigrant parents further narrows in their early life course because the achievement of children with less educated immigrant parents improves relative to children with more educated immigrant parents. Differences by parental nativity in the size and trajectories of achievement gaps associated with parental education can be partially explained by the fact that children with less educated immigrant parents have relatively greater resources than their peers with less educated native-born parents from early in life. My findings provide evidence that the “immigrant advantage” in academic achievement, a common finding in the literature on immigrant education in the United States, originates early in the life course.

  • Access to Document (DOI)

• Socioeconomic selectivity of Japanese migration to the continental United States during the Age of Mass Migration

  Tate Kihara

  Journal of Ethnic and Migration Studies (Talylor and Francis)  48 ( 11 ) 2577 - 2600 2022

  Research paper (scientific journal), Single Work, Accepted,  ISSN  1369-183X

  　View Summary

  This study explores the socioeconomic selectivity of Japanese male immigrants who migrated to the continental United States (US) during the Age of Mass Migration (mid-nineteenth to the early twentieth century) by comparing the US administrative records of Japanese long-term immigrants interned during World War 2 (WRA records) with a Japanese social survey of non-migrants (SSM survey). Both data contained information on educational attainment in Japan, the father's occupation in Japan, birth cohort, and birth prefecture. The analysis revealed positive educational selectivity of the long-term migration of both secondary- and tertiary school-educated Japanese males in all the migratory time periods. The selectivity of secondary school-educated Japanese males was especially strong and extended to males from all family backgrounds and all Japanese prefectures. Given the strong middle-class nature of secondary and tertiary education in the late nineteenth to early twentieth century in Japan, the results showed that first-generation Japanese immigrants were positively selected in terms of their socioeconomic status. These findings are important because the growing literature on socioeconomic selection in migration during the Age of Mass Migration has predominantly focused on transatlantic (Europe–US) migration and has largely neglected transpacific migration from Asia.

  • Access to Document (DOI)

• The Educational Gradient in Health Among Children in Immigrant Families

  Margot I. Jackson, Tate Kihara

  Population Research and Policy Review (Springer Science and Business Media LLC)  38 ( 6 ) 869 - 897 2019

  Research paper (scientific journal), Single Work, Accepted,  ISSN  0167-5923

  • Access to Document (DOI)

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Reviews, Commentaries, etc. 【 Display / hide 】

Reviews, Commentaries, etc. 【 Display / hide 】

• 歴史データで辿る日系移民の足跡

  木原盾

  三田評論  ( 1294 ) 75 - 75 2024.12

Research Projects of Competitive Funds, etc. 【 Display / hide 】

Research Projects of Competitive Funds, etc. 【 Display / hide 】

• 米国における移民の社会移動に関する計量歴史社会学：日本人移民とその子孫に着目して

  2023.04

  -

  2026.03

  日本学術振興会, 科学研究費助成事業 特別研究員奨励費, 特別研究員奨励費, No Setting

• 外国人移民受け入れの比較社会学-英国のシティズンシップテスト制度に着目して-

  2017.04

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  2018.03

  日本学術振興会, 科学研究費助成事業, 特別研究員奨励費, No Setting

  　View Summary

  本研究の対象は英国における移民統合とシティズンシップテストの関係である。シティズンシップテストとは、移民受け入れ国で外国人が国籍を取得（帰化）する際に法的要件（最低居住年数・二重国籍の可否etc.）とともに課される教育的要件のことであり、公用語運用能力と、受け入れ社会に関する知識（歴史・地理・政治・社会制度等）の二種類のテストからなる。米国では20世紀初頭から、多くの欧州諸国（英国含む）では20世紀末以降から徐々に導入され始めている。
  平成29年は（1）シティズンシップテストに着目する本研究を既存の社会学理論・教育学理論に位置付けるための文献収集及び研究、（2）移民受け入れ国一般におけるシティズンシップテストと帰化行動の関係を統計データの分析を通して明らかにする計量社会学的研究、（3）シティズンシップテストの実施をしている国々の移民受け入れに関する基礎的な情報の収集の計三点を進捗させた。
  （1）に関しては社会的閉鎖の手段としてのシティズンシップ（国籍）に関する議論（ロジャース・ブルーベイカー）に着目することで研究を深めた。（2）に関しては、独自に構築したカントリーイヤーパネルデータの分析を通して、公用語運用力のテスト導入は帰化率を抑制しない可能性が高いが、受け入れ社会に関する知識のテストの導入は帰化率に強い負の影響を与えることが示された（各国の法・政治・経済的変数の変化も統制済）。分析結果のロバスト性をより多角的な統計的手法により検討し、論文として投稿する準備を進めている。（3）に関しては一部の資料を収集したが、途上である。
  平成29年9月1日付で特別研究員を中途辞退することとなったため、採用期間中に本研究と密接に関連した論文業績を残すことはできなかった。今後も、研究を進めて行く所存である。

Awards 【 Display / hide 】

Awards 【 Display / hide 】

• Asia and Asian America Section Best Research Paper Award Honorable Mention

  木原盾, 2025, American Sociological Association

• 日本社会学会奨励賞（論文の部）

  木原盾, 2025, 日本社会学会

• Phi Beta Kappa (φβκ)

  木原 盾, 2023, ファイ・ベータ・カッパ協会ブラウン大学支部

• Jaap Dronkers Award (RC28 Travel Award for ISA RC28 Spring Meeting in London)

  木原 盾, 2022, 国際社会学会 社会階層と社会移動研究部会

• SSJデータアーカイブ優秀論文賞

  木原 盾, 2022, 東京大学社会科学研究所

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Courses Taught 【 Display / hide 】

Courses Taught 【 Display / hide 】

• SOCIAL DYNAMICS

  2025

• SEMINAR B

  2025

• POPULATION DYNAMICS

  2025

• POLICY MANAGEMENT STUDIES

  2025

• METHODOLOGY STUDY

  2025

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Committee Experiences 【 Display / hide 】

Committee Experiences 【 Display / hide 】

• 2026.01

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  Present

  Japanese Journal of Sociology 編集委員, 日本社会学会

• 2025.11

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  Present

  Aristide Zolberg Distinguished Student Scholar Award Committee, International Migration Section, American Sociological Association

• 2024.05

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  Present

  評議員, 公益財団法人東京大学学生キリスト教青年会（東大YMCA）