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Ryota Mugiyama

@ryotamugiyama.bsky.social
134 followers 178 following 35 posts

Teaching sociology at Gakushuin University, Tokyo, Japan. Researching inequality and stratification in Japan, in relation to labor market, family formation, and social mobility. ryotamugiyama.com

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Reposted by Ryota Mugiyama
Klaus Pforr @klauspforr.eurosky.social · 02/10/2026
Interesting paper by @lonnekevdberg.bsky.social and @pgonalon.bsky.social shows with longitudinal register data in the NL that proximity to grandmothers increases mothers’ post-birth employment, smaller for partnered mothers, bigger for single mothers academic.oup.com/esr/advance-...
academic.oup.com
Geographic proximity to grandparents and mothers’ paid work after childbirth
Abstract. Grandparents often provide childcare, which can help foster mothers’ labour market participation. Most studies on this topic compare mothers who
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Nuffield College Library @nuffieldlibrary.bsky.social · 02/10/2026
When can we use two-way fixed effects (TWFE)? A comparison of TWFE and novel dynamic difference-in-differences estimators doi.org/10.1177/0081... Paper in Sociological Methodology by Associate Member @ruettenauer.bsky.social and @nuffieldcollege.bsky.social Fellow @aksoyundan.bsky.social
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Ryota Mugiyama @ryotamugiyama.bsky.social · 11/09/2026
出生動向基本調査の最新年の結果。 www.ipss.go.jp/ps-doukou/j/...
ipss.go.jp
第17回出生動向基本調査(結婚と出産に関する全国調査)
国立社会保障・人口問題研究所
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Andrew Taeho Kim @atkim.bsky.social · 05/09/2026
My new research shows that overworking single-breadwinner families have become more economically competitive with non-overworking dual-breadwinner families—especially at the top of the income distribution. doi.org/10.1093/sf/s...
doi.org
One overworking breadwinner or two earners? Family economic standard of living by breadwinner arrangement, 1960 to 2018–2022
Abstract. Has the rise of rewards to long and inflexible work schedules altered the household-level economic viability of gendered divisions of paid work w
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Vincent Arel-Bundock @vincentab.bsky.social · 04/09/2026
Big news! 🎉 𝚖𝚊𝚛𝚐𝚒𝚗𝚊𝚕𝚎𝚏𝚏𝚎𝚌𝚝𝚜 1.0.0 for #Rstats is out. It’s a big number and it feels like a big step. I wrote a blog on the challenges of interpreting statistical models, SPEED, cool new features, the future, and a 5 year package development and writing odyssey. arelbundock.com/posts/margin...
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Nathan Hoffmann @nathanihoff.bsky.social · 04/09/2026
My paper "Double robust, flexible adjustment methods for causal inference: An overview and an evaluation" is out in Social Science Research. Spoiler: In simulations, double robustness appears less important than flexibility, and OLS does pretty well! 🧵👇 1/7 www.sciencedirect.com/science/arti...
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Nuffield College Library @nuffieldlibrary.bsky.social · 24/08/2026
RobustiPy: An efficient next-generation multiversal library with model selection, averaging, resampling, and explainable AI doi.org/10.1016/j.pa... Paper in @cp-patterns.bsky.social by @nuffieldcollege.bsky.social NSRF @dvaldenegro.bsky.social, Jiani Yan, Duiyi Dai & Associate Member @crahal.com
doi.org
https://doi.org/10.1016/j.patter.2026.101609
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Kim Weeden @weedenkim.bsky.social · 01/09/2026
Fascinating study of video data on class differences in parenting styles about food and mealtimes. Class differences in parenting styles are fairly weak and the boundaries blurry. #socsky: a good addition to syllabus if you teach Lareau or Bourdieu, or more generally about social class "cultures."
sociologicalscience.com
Social Class Differences in Parenting? Revisiting Classed Childrearing through a Video-Ethnography of Mealtime
Article: Social Class Differences in Parenting? Revisiting Classed Childrearing through a Video-Ethnography of Mealtime | Sociological Science | Posted August 25, 2026
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Kim Weeden @weedenkim.bsky.social · 01/09/2026
Interesting new paper on "overwork" (long work hours per week) in China. Shows that, contra the US, overwork is concentrated in blue-collar occupations rather than in the professions, and is associated with a wage penalty -- lower pay per hour of work -- rather than a wage premium.
sociologicalscience.com
Overwork Without Premium: The Persistent Class Gradient of Long Hours in China, 2006–2023
Article: Overwork Without Premium: The Persistent Class Gradient of Long Hours in China, 2006–2023 | Sociological Science | Posted August 31, 2026
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European Social Survey @ess-survey.bsky.social · 31/08/2026
A #study published by Population and Development Review (@wiley.com) examined #attitudes towards non-traditional family behaviours. Researchers from @invest-flagship.bsky.social 🇫🇮 and @cpc-cg.bsky.social 🇬🇧 compared data from rounds 3 (2006/07) and 9 (2018/19) of our #survey. buff.ly/wG1Tzbn
onlinelibrary.wiley.com
The Changing Educational Gradient in Nontraditional Attitudes toward Family Behavior: A Cross-National Study
The second demographic transition (SDT) theory highlights how nontraditional family behaviors first emerged in Nordic countries and diffused elsewhere.
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Herman van de Werfhorst 🟥 @hermwerf.bsky.social · 07/08/2026
I think this is great news. It could lead to a new stream of stratification research comparing Japan with European countries, which hasn’t fully revived after the CASMIN project of the 1980s / early 1990s. Japan’s educational system is, for one, particularly interesting.
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Demography - the flagship journal of PAA @readdemography.bsky.social · 07/08/2026
“Maternal Employment & Children’s Cognitive Ability”: Jia Wang & James Raymo find that regular employment among less educated mothers had a negative impact on kids' cognitive scores & call for research that considers broader gender norms & work-family patterns. read.dukeupress.edu/demography/a...
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Demographic Research @demresjournal.bsky.social · 09/07/2026
Focusing on #China, we find #EducationalCompetition (proxied by private tutoring centers within 800m of schools) correlates with a 0.04-child reduction in #FamilySize — this link is striking for low-to-middle income households. #PopulationResearch 📄👇 www.demographic-research.org/articles/vol...
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Ryota Mugiyama @ryotamugiyama.bsky.social · 26/06/2026
小松さんと足掛け7年ほどやっている共同研究の成果論文が『日本労働研究雑誌』にて出版されました。日本においてタスクの二極化現象が見られるのかを国勢調査とjob tagのマッチングデータを用いて検証した論文です。 www.jil.go.jp/institute/za...
jil.go.jp
論文(投稿)要約「1980~2020年の日本の労働市場におけるタスク分布の変化─産業構造の変化とICT導入の影響」|労働政策研究・研修機構(JILPT)
日本労働研究雑誌2026年7月号 論文(投稿)要約「1980~2020年の日本の労働市場におけるタスク分布の変化─産業構造の変化とICT導入の影響」小松 恭子,麦山 亮太
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Tom VanHeuvelen @tvanheuvelen.bsky.social · 10/06/2026
A new Annual Review article by @arnoutvanderijt.bsky.social and colleagues worth a read. Don't let the formal modeling of luck fool you. This is one of the more interesting, and all around crazier, articles I've read recently. Super cool. www.annualreviews.org/content/jour...
annualreviews.org
Luck and Predictability in the Life Course
There is an emerging recognition among sociological theorists that luck may play a substantial role in life course achievement. There is also a nascent empirical literature that finds life outcomes to...
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Kerstin Ostermann @kostermann.bsky.social · 09/06/2026
New preprint out with @mfphilipp.bsky.social & @eileenpeters.bsky.social ✨️ From #neighborhood exposure to #genderbeliefs? We find that local female employment patterns are linked to beliefs about when mothers should return to full-time work. Read more here: osf.io/preprints/so...
Predicted child age at which the respondent rates maternal full-time employment as appropriate for four subgroups (childless men, childless women, fathers and mothers). Fathers in neighborhoods with dominant traditional employment among women report the highest child age, whereas fathers and childless women in neighborhoods in which traditional employment patterns are not dominant report the lowest child ages.
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Jörg Ankel-Peters @jrgptrs.bsky.social · 05/06/2026
New DP @i4replication.bsky.social : An Empirical Assessment of Computational Reproducibility in Sociology. www.econstor.eu/bitstream/10...
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Michael Clemens @mclem.org · 01/06/2026
Remember that recent paper claiming to show that "ideological bias" determined the results obtained by immigration policy research teams? A careful, open-code reanalysis by @kauspurg.bsky.social & Josef Brüderl finds that the result arises from a coding error. —> doi.org/10.31222/osf...
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Per Engzell @pengzell.bsky.social · 08/05/2026
What can we learn from automating an entire quantitative social science paper, from prompt to finished product? Thread about ongoing work with @natewilmers.bsky.social 1/12 Paper: osf.io/preprints/so...
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Fabrizio Bernardi @fabriberna.bsky.social · 27/04/2026
Which must-read book+3 articles would recommend to a first year Sociology PhD student? Which book+3 articles impacted you most, during your own PhD? I have made these questions to a group of colleagues. Here the combined list: www.fabriziobernardi.net/a-sociology-... 1/2🧵
fabriziobernardi.net
A Sociology PhD Starter Reading List » fabrizio bernardi
I created a kind of academic game and ask some colleagues in social stratification and social demography four short questions: I received answers from 15 colleagues: 6 women and 9 ... Read more
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Marie Labussière 🟥 @labussieremarie.bsky.social · 14/04/2026
🥁New paper! People talk a lot about skills in relation to technological change, but how do we measure skills? We show occupational classifications miss their complexity. Using millions of job ads, we model skill profiles and better explain wage inequality ⬇️ sociologicalscience.com/articles-v13...
sociologicalscience.com
Are Occupations “Bundles of Skills”? Identifying Latent Skill Profiles in the Labor Market Using Topic Modeling
Article: Are Occupations “Bundles of Skills”? Identifying Latent Skill Profiles in the Labor Market Using Topic Modeling | Sociological Science | Posted April 13, 2026
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Kerstin Ostermann @kostermann.bsky.social · 03/04/2026
For the #spatial folks among you: we exploited random distances between residential locations and large firms within German local labor markets to identify the causal effect of #dropout due to attractive alternatives 🚙💸⬆️
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Ryota Mugiyama @ryotamugiyama.bsky.social · 02/04/2026
Press release in Japanese: 【研究成果・プレスリリース】大学の偏在が進学率の地域間格差を拡大する 大学定員増加が地域の大学進学率に与える効果を実証 www.univ.gakushuin.ac.jp/about/press/...
univ.gakushuin.ac.jp
【研究成果・プレスリリース】大学の偏在が進学率の地域間格差を拡大する 大学定員増加が地域の大学進学率に与える効果を実証|学習院大学
学習院大学の公式サイトです。大学概要、入試情報、学部・大学院情報等、各種情報がご覧になれます。
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Ryota Mugiyama @ryotamugiyama.bsky.social · 01/04/2026
Our paper has recently been published from ESR! Exploiting policy-induced longitudinal changes in regional university availability, we showed that increased access boosts enrolment, while the impact is stronger for individuals with highly educated parents. academic.oup.com/esr/advance-...
track.smtpsendmail.com
Changing regional university availability and inequality of educational opportunity in Japan
Abstract. The uneven distribution of universities across regions has been argued to create educational inequalities based on place of residence. While stud
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Aaron Sojourner @aaronsojourner.org · 30/01/2026
"...women receive substantially lower potential ratings despite receiving higher performance ratings... lower potential ratings do not reflect accurate forecasts of future performance: Women subsequently outperform male colleagues..." pubs.aeaweb.org/doi/pdfplus/...
“Potential” and the Gender Promotion Gap†
By Alan Benson, Danielle Li, and Kelly Shue*
We show that subjective assessments of employee “potential” contribute to gender gaps in promotion and pay. Using data on 29,809
management-track employees from a large retail chain, we find that
women receive substantially lower potential ratings despite receiving
higher performance ratings. Differences in potential ratings account
for approximately half of the gender promotion gap. Women’s lower
potential ratings do not reflect accurate forecasts of future performance: Women subsequently outperform male colleagues, both on
average and on the margin of promotion. We highlight two mechanisms driving the gender potential gap: strategic retention and stereotyping. (JEL J16, J31, J71, L81, M12, M51)
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日本の研究.com ニュース @research-er.jp · 10/03/2026
【注目プレスリリース】子どもを持ちたくない・迷っていることが結婚を遅らせる要因に 東アジアの少子化の原因への新たな示唆子どもを持ちたくない・迷っていることが結婚を遅らせる要因に 東アジアの少子化の原因への新たな示唆 / 学習院大学 research-er.jp/articles/view/153867
research-er.jp
子どもを持ちたくない・迷っていることが結婚を遅らせる要因に 東アジアの少子化の原因への新たな示唆子どもを持ちたくない・迷っていることが結婚を遅らせる要因に 東アジアの少子化の原因への新たな示唆
2026.03.10 学習院大学 プレスリリース ポイント本研究では、「結婚の減少が少子化をもたらした」とする従来の説明とは逆に、「子どもが欲しくない・迷ってい...
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Jens-Peter Thomsen @jenspeterthomsen.bsky.social · 11/03/2026
We have a new paper out in Sociology of Education @soceducation.bsky.social on Intergenerational educational mobility in Scandinavia and the United States. journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Intergenerational Educational Mobility in Scandinavia and the United States - Jens-Peter Thomsen, Stefan Bastholm Andrade, Florian R. Hertel, Max Thaning, Øyvind Nicolay Wiborg, 2026
Intergenerational educational mobility reflects a welfare state's ability to provide citizens with opportunities to climb the social ladder. Representing t...
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Mark Williams @mwilliamsqmul.bsky.social · 26/02/2026
Why do so many doctors, accountants, and solicitors have parents who did the same profession? In a new paper with Maria Koumenta (QMUL), we show that occupational regulation increases intergenerational occupational persistence in the UK, thereby reducing social mobility. doi.org/10.1111/irel...
doi.org
Occupational Licensing, Intergenerational Occupational Persistence and Social Mobility
We study the relationship between occupational regulation and intergenerational occupational persistence. Using the UK Household Longitudinal Study (2009–2024), we find that individuals are significa...
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Isabel Maria Habicht @isabelmhabicht.bsky.social · 25/02/2026
📢 New publication! Together with @dariatisch.bsky.social, I’m happy to share our new article bringing gender into a key methodological debate on how to answer causal questions. 🔗 link.springer.com/article/10.1...
link.springer.com
Rethinking Gender and Other Seemingly Nonmanipulable Characteristics for Causal Analysis - KZfSS Kölner Zeitschrift für Soziologie und Sozialpsychologie
Identifying the causes of social inequality is crucial for designing effective policy interventions. Experimental methods, in which variables are manipulated and participants are randomly assigned to ...
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Ryota Mugiyama @ryotamugiyama.bsky.social · 21/02/2026
Positron + Github Copilotがすごすぎて泣いてる。
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Dirk Witteveen @dirkwitteveen.bsky.social · 19/02/2026
📢 In this Social Forces article, I introduce occupational elitism as a novel measure of social closure: the share of upper-class background workers within an occupation. Its consequences for earnings stratification can be examined using a social closure theory lens. 🔓 doi.org/10.1093/sf/s...
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Sander Wagner @sanderwagner.bsky.social · 13/02/2026
New Pub 🚨📝🎓: "Stratification of Post-Birth Labour Supply in a High- and Low- Maternal Employment Regime" www.sciencedirect.com/science/arti... Short version: Germany has much bigger motherhood penalties than France, but they are not more socially stratified. That wasn’t what we expected. 🧵⬇️
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European Social Survey @ess-survey.bsky.social · 02/02/2026
New #research into #happiness levels by age compared our #data with the Japanese General Social Survey 🇯🇵. Takashi Oshio (Hitotsubashi University 🇯🇵) and Satoshi Shimizutani (Nagoya University 🇯🇵) assessed happiness levels in France 🇫🇷, Germany 🇩🇪, Japan 🇯🇵, and the United Kingdom 🇬🇧.
buff.ly
Comparing age-happiness relationships between Japan and Europe
Numerous studies have examined the existence of the “well-being paradox,” according to which subjective well-being is stable or even improves in later life despite worsening health and social losses.
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Public Opinion Quarterly - POQ @poqjournal.bsky.social · 18/12/2025
Survey experiments have become a popular methodology among social scientists. Has it been effective? In POQ, Rauf et al. study the efficacy of 100 survey experiments. Their results show that a majority of hypotheses were not supported. Read now: doi.org/10.1093/poq/...
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Julia M. Rohrer @dingdingpeng.the100.ci · 18/12/2025
Just gave my last talk of the year! 2025 was quite packed, I gave talks about: - the age-period-cohort problem - making rigorous causal inference more mainstream - mediation analysis - marginaleffects - causal graphs (x10) If you're curious, check out my slides here: juliarohrer.com/resources/
juliarohrer.com
Resources
Here you can find a collection of things that may be helpful, including slide decks, a curated list of introductory papers and blog posts, as well as some infographics I have generated to explain v…
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Sociological Science @sociologicalsci.bsky.social · 11/12/2025
NEW: Ely Strömberg, Per Engzell, "How Robust Are Country Rankings in Educational Mobility?" sociologicalscience.com/articles-v12...
sociologicalscience.com
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Saloni @scientificdiscovery.dev · 09/12/2025
Big new blogpost! My guide to data visualization, which includes a very long table of contents, tons of charts, and more. --> Why data visualization matters and how to make charts more effective, clear, transparent, and sometimes, beautiful. www.scientificdiscovery.dev/p/salonis-gu...
screenshot of my post
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Climent Quintana-Domeque @climent.bsky.social · 04/12/2025
"On the (Mis) Use of the Fixed Effects Estimator" (by @dlmillimet.bsky.social and Marc F. Bellemare) published in the Oxford Bulletin of Economics & Statistics. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
On the (Mis) Use of the Fixed Effects Estimator
Data that span multiple units and time periods allow controlling for time-invariant heterogeneity correlated with the covariates. While researchers can do this in different ways, the fixed effects es....
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Josh McCrain @joshmccrain.bsky.social · 18/11/2025
new paper by Sean Westwood: With current technology, it is impossible to tell whether survey respondents are real or bots. Among other things, makes it easy for bad actors to manipulate outcomes. No good news here for the future of online-based survey research
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Herman van de Werfhorst 🟥 @hermwerf.bsky.social · 18/11/2025
The rise of stratification research in sociology, economics, and political science. My new blog. With a conclusion that European universities should rather sponsor inequality centers than to dismantle them. @eui-eu.bsky.social @eui-sps.bsky.social hermwerf.substack.com/p/the-rise-o...
hermwerf.substack.com
The Rise of Stratification Research in Sociology, Economics, and Political Science
How social stratification became increasingly studied in sister fields of sociology
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Fabrizio Bernardi @fabriberna.bsky.social · 17/11/2025
New article in @sfjournal.bsky.social with @mvaldes1989.bsky.social and I. Lievore on the effect of edu expansion among parents on children's achievement Do university-educated families lose their edge as education expands among parents? Short answer: yes 1/2 academic.oup.com/sf/advance-a...
academic.oup.com
Do university-educated families lose their edge as education expands? The withering performance and advantage of their children
Abstract. Extensive research has examined the effect of educational expansion in one cohort on educational inequality and occupational returns in that same
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Daniel de Kadt @dandekadt.bsky.social · 11/11/2025
I personally think this is a "harder problem" than we care to admit. So, are you a (social) scientist struggling with this situation? A break between what you _want_ to study (a causal process) and what you feel you _can_ credibly study (a correlation)? Here are some readings that might help. 👇
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Sasha Killewald @sashakillewald.bsky.social · 11/11/2025
I'm facilitating a causal inference reading group next semester for Sociology PhD students. (I will also be learning!) If there are (1) pedagogical articles or (2) empirical examples in soc that you ❤️, will you share in the comments? [And please RT to help me crowd-source!]
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Katrin Auspurg @kauspurg.bsky.social · 11/11/2025
Billions of regressions ≠ robustness. My new PNAS Letter shows how unjustified models can drown out justified ones — and why thoughtful model selection matters👇 www.pnas.org/doi/10.1073/...
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Ryota Mugiyama @ryotamugiyama.bsky.social · 01/11/2025
ゆうちょ財団発刊の『季刊 個人金融』に「職業とタスクからみる仕事内容のジェンダー格差」という題の小文を寄稿しました。国勢調査、job tag、PIAACのデータなどをもとに、日本における仕事の測定、その分布の男女差、および賃金格差への帰結についてまとめています。 yu-cho-f.jp/research/pub...
yu-cho-f.jp
季刊 個人金融 2025年秋号|一般財団法人ゆうちょ財団
国民の皆さまの福祉の増進に寄与することを目的として、貯蓄活動や調査研究、研究助成、国際ボランティア活動支援及び金融教育・相談等の公益事業を推進しております。
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Per Engzell @pengzell.bsky.social · 21/10/2025
Multiverse studies seem doomed to perpetuate a cycle of "look it varies!" "but not that much" "does too!". Here's another exchange that I had missed. "Robustness is better assessed with a few thoughtful models than with billions of regressions" doi.org/10.1073/pnas...
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Manuel Schechtl @schechtlm.eurosky.social · 15/10/2025
Is childhood exposure to local wealth inequality associated with upward income mobility achieved in adulthood? Yes! Check out my new paper, just published in @natureportfolio.nature.com here: doi.org/10.1038/s414... #EconSky #Sociology #Demography
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Demography - the flagship journal of PAA @readdemography.bsky.social · 14/10/2025
“Cumulative Effect of Retirement on Mortality” examines Social Sec. eligibility & mortality. @furuyashiro.bsky.social finds that each additional year retired ↑ mortality risk w/in the next 2 yrs by 0.9 pp. @harvardpopcenter.bsky.social @purduesociology.bsky.social read.dukeupress.edu/demography/a...
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Ryota Mugiyama @ryotamugiyama.bsky.social · 22/09/2025
2023年度より進めている社会調査データの統合プロジェクトの作業手順やその過程で得られた示唆等について記した報告書論文が公開されました。ご関心ある方はご覧ください。 csrda.iss.u-tokyo.ac.jp/RPS096.pdf
csrda.iss.u-tokyo.ac.jp
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