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Maik Hamjediers

@mhamjediers.bsky.social
809 followers 637 following 28 posts

Postdoc at @mpidr.bsky.social Social stratification, gender inequality, occupations, conscription, quantitative methodology Previously at @humboldtuni.bsky.social & @eui-eu.bsky.social 🌐 mhamjediers.com

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Reposted by Maik Hamjediers
Per Engzell @pengzell.bsky.social · 29/09/2026
The Max Weber postdoc program at @eui-eu.bsky.social has its deadline 16 October, for a September 2027 start: www.eui.eu/en/academic-...
eui.eu
Max Weber Programme for Postdoctoral Studies
Making a Difference in Global Academia
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Manuel Schechtl @schechtlm.eurosky.social · 29/09/2026
Timely new paper in @socioeconreview.bsky.social: Does rising wealth concentration undermine American democracy? Using variation across the 50 U.S. states, results reveal a clear, negative effect of millionaire wealth concentration on democratic performance. doi.org/10.1093/ser/mwag058
Wealth concentration in the United States has reached heights not seen since the Gilded Age, renewing fears that concentrated economic power may undermine democracy. Yet empirical research linking inequality to democratic erosion remains inconclusive, partly because most studies focus on cross-country comparison and examine income rather than wealth. This study exploits variation across fifty U.S. states; each
embedded in a common federal framework but differing in political and economic dynamics. To estimate the exogenous effect of rising wealth concentration on democratic backsliding, I develop a shift-share instrument of state-level millionaire wealth shares. Results reveal a clear, negative effect on democratic performance. Causal mediation analysis demonstrates that the effect is mediated by the share of seats held by
Republicans in state legislatures, pointing to a mechanism of elite influence through partisan channels. These findings demonstrate that subnational wealth disparities, and their convergence with partisan politics, actively erode American democratic institutions.
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Julian Reif @julianreif.bsky.social · 28/09/2026
It's starting www.nber.org/system/files...
nber.org
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Sociological Science @sociologicalsci.bsky.social · 28/09/2026
NEW: Oliver Lipps, Daniel Oesch, Roujman Shahbazian, "No Stalled Revolution: The Closing Gender Gap in Early Careers in Europe and the United States" sociologicalscience.com/articles-v13...
sociologicalscience.com
https://sociologicalscience.com/articles-v13-44-1159
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Per Block @perblock.bsky.social · 25/09/2026
We made a really neat network plot about the structure of marriages between occupations. And there is a whole article with it that's really neat too! And it's out now too! doi.org/10.1016/j.rssm.2026.101203
A network plot showing connections between occupations that depict marriage
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Arno Van Hootegem 🌱 @arnovanhootegem.bsky.social · 22/09/2026
Companies are now selling genetic testing on IVF-created embryos to select ‘your best baby’. We argue that this presents a new source of pressure for parents and will widen reproductive inequalities! In @nathumbehav.nature.com with @gaiaghirardi.bsky.social and @kph3k.bsky.social!
nature.com
Embryo screening and the new reproductive divide
Nature Human Behaviour - Embryo screening and the new reproductive divide
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Thomas Lux @thomaslux.bsky.social · 28/08/2026
Sociology in the tradition of Karl Mannheim says that what you live through in your impressionable years tends to leave a lasting imprint. But which events do people themselves count as formative for their lives? Our data visualization in Socius answers this. 1/6 journals.sagepub.com/doi/10.1177/...
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Fabian Kalleitner @kalf.bsky.social · 20/08/2026
The Austrian socio economic panel takes shape! now with two waves available as easy to access scientific use files.
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Demography - the flagship journal of PAA @readdemography.bsky.social · 07/08/2026
In “Reliability of Repeated Measures of Retrospective Parity,” @karenguzzo.bsky.social et al show that 1 in 5 parents reported a different parity between survey waves, split equally btw “losing” & “finding” a birth. @uncpopcenter.bsky.social @cfdr-bgsu.bsky.social read.dukeupress.edu/demography/a...
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Sociological Science @sociologicalsci.bsky.social · 06/08/2026
NEW: Josep Serrano-Serrat, "Quantities of Interest for Interactions and the Pitfalls of Assuming Linear Treatment Effects" sociologicalscience.com/articles-v13...
sociologicalscience.com
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Tabea Naujoks @tabeanaujoks.bsky.social · 28/07/2026
In my new article, I compare female same-sex and different-sex parent couples and find that female same-sex couples divide paid work more equally. In East Germany, both couple types are relatively egalitarian; in West Germany, different-sex couples remain more specialized ▶️ doi.org/10.5771/0038...
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Princeton University Press @princetonupress.bsky.social · 11/07/2026
What happens when two sociologists turn their analytical lens on parenting itself? In this edition of Ideas, Allison Daminger and Nina Bandelj dissect the “emotional economy” of modern parenting—arguing that today’s exhaustion is socially produced. press.princeton.edu/ideas/from-i...
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Anna Zamberlan @zamberlanna.bsky.social · 22/07/2026
Alisia Bauer and I ran a cross-national survey experiment to test whether name-based status and gender cues actually work as intended, and what else rides along with them—especially age and ethnicity. Results are now out in @actasociologica.bsky.social journals.sagepub.com/doi/full/10....
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Sociological Science @sociologicalsci.bsky.social · 16/06/2026
NEW: Léa Pessin, Kevin Munger, "Beyond Text: Using AI-Generated Visual Conjoints to Study Gender and Housework Attribution" sociologicalscience.com/articles-v13...
sociologicalscience.com
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Per Engzell @pengzell.bsky.social · 08/06/2026
Postdoc position with Wiebke Schulz at Uni Bremen on gender inequalities in access to and consequences of AI. Applications due 25 June. www.uni-bremen.de/en/universit...
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Social Science Research @ssreditorial.bsky.social · 05/06/2026
New research from @mhamjediers.bsky.social, @ppraeg.bsky.social, and @a-gugushvili.bsky.social investigates whether large-scale geopolitical shocks causally reshape how individuals perceive their intergenerational mobility. Read this article open access here: www.sciencedirect.com/science/arti...
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John Holbein @johnholbein1.bsky.social · 05/06/2026
Only 9.9% of top Sociology articles from 2019-2024 provided replication packages. And ≈ half of those with replication packages could not be verified due to missing or incomplete materials. www.econstor.eu/bitstream/10...
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CREST Sociology @crestsociology.bsky.social · 01/06/2026
NEW ARTICLE by CREST Sociology's Patrick Präg in Social Science Research: "Russia’s invasion of Ukraine and perceived intergenerational mobility in Czechia and Uruguay. An unexpected event during survey design study" OPEN ACCESS: doi.org/10.1016/j.ss...
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Patrick Präg @ppraeg.bsky.social · 15/05/2026
Bad news for capricorns: they earn less than other zodiac signs Good news for capricorns: it's not due to their zodiac sign
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Maik Hamjediers @mhamjediers.bsky.social · 22/05/2026
Do waitresses receive the same occupational prestige as waiters? Using German gendered occupational titles, we find that feminine job titles receive slightly lower prestige than masculine ones, especially among male-domindated occupations. Out now in Social Forces. doi.org/10.1093/sf/s...
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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 · 28/04/2026
New paper out in Annual Review of Sociology with @arnoutvanderijt.bsky.social #W.Foley and @l-sage.bsky.social "Luck and Predictability in the Life Course" We take stock of what we know about luck and its role in shaping life-courses and inequality 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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Maik Hamjediers @mhamjediers.bsky.social · 27/04/2026
With conscription again under debate, @ivancanzio.bsky.social and I examined how conscription was institutionalized across 18 European countries and assessed how its suspension was associated with men’s early-career occupational placement.
Title page and abstractTable comparing conscription policies across 18 European countries, including suspension year, cohort exposure, service rates, conscientious objection, and service duration.
Coefficient plot showing positive associations between having served in the military and later work in armed forces, skill/license-related, and male-dominated occupations.
Difference-in-differences coefficient plot showing modest negative estimates of conscription suspension on men’s work in armed forces, skill/license-related, and male-dominated occupations.
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Maik Hamjediers @mhamjediers.bsky.social · 27/04/2026
With conscription again under debate, @ivancanzio.bsky.social and I examined how conscription was institutionalized across 18 European countries and assessed how its suspension was associated with men’s early-career occupational placement.
Title page and abstractTable comparing conscription policies across 18 European countries, including suspension year, cohort exposure, service rates, conscientious objection, and service duration.
Coefficient plot showing positive associations between having served in the military and later work in armed forces, skill/license-related, and male-dominated occupations.
Difference-in-differences coefficient plot showing modest negative estimates of conscription suspension on men’s work in armed forces, skill/license-related, and male-dominated occupations.
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Maik Hamjediers @mhamjediers.bsky.social · 24/04/2026
The 'Treiman Constant' (occupations ranked in the same order in most nations [r=0.91 of national vs SIOPS scale]) "may be the only universal sociologists have discovered" (Hout & DiPrete, 2006) With recent occupational prestige measures, I took a very brief revisit; make out of it, what you want.
Six scatterplots comparing occupational prestige scores across the UK, US, Germany, and the SIOPS scale (ISCO-08, 4-digit level). All panels show strong positive correlations (r ≈ 0.66–0.77) between national measures and SIOPS, as well as between countries.
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Arnout van de Rijt @arnoutvanderijt.bsky.social · 21/04/2026
"Black fathers’ military service increased children’s probability of earning a bachelor’s degree by 53 percent compared with children of Black nonveterans" Just out in our journal, @sociologicalsci.bsky.social
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Linus Westheuser @lwestheuser.bsky.social · 16/04/2026
Knife crime! Pronouns! Meat bans! Some political issues lead to "hotter", more emotional and polarizing debates than others. We show how these "trigger points" reveal a contested structure of moral expectations and how they get weaponized by polarization entrepreneurs. OA @bjsociology.bsky.social 🧵
onlinelibrary.wiley.com
Why do Public Debates Escalate? Trigger Points and the Moral Dynamics of “Hot Politics”
Escalating, emotionally charged, and moralized forms of controversy are a central feature of contemporary politics. Our study develops a framework for understanding how political debates between ordi...
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Sociological Science @sociologicalsci.bsky.social · 13/04/2026
NEW: Marie Labussière, Thijs Bol, "Are Occupations “Bundles of Skills”? Identifying Latent Skill Profiles in the Labor Market Using Topic Modeling" sociologicalscience.com/articles-v13...
sociologicalscience.com
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Laura K. Nelson @lauraknelson.bsky.social · 03/04/2026
This figure is the one that is actually embarrassing for sociology:
Fig. 2: Data and code availability by field. Left, data and code availability as a percentage of papers. Right, the raw counts of papers with data and code available and not available. Restricted data (purple) did not count as available data, but might be accessible in principle.

This shows political science has thee most papers with open data/code, followed by economics, then much further behind, psychology and then sociology (sad). Sociology is well below all field average.
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Sociological Science @sociologicalsci.bsky.social · 24/02/2026
NEW: Vida Maralani, Camille Portier, Berkay Özcan, "Early Childhood Investments and Women’s Work Outcomes across the Life Course" sociologicalscience.com/articles-v13...
sociologicalscience.com
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Arnout van de Rijt @arnoutvanderijt.bsky.social · 19/02/2026
Why does a worse candidate win? Or an inferior song dominate? New article with @alexgelas.bsky.social, @pantelispa.bsky.social & Gaël Le Mens. We show that often once A becomes even slightly more popular than B, people choose A much more often. www.science.org/doi/pdf/10.1...
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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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Klaus Pforr @klauspforr.eurosky.social · 17/02/2026
Interesting paper by @natrinh.bsky.social, @dariatisch.bsky.social, & @schechtlm.bsky.social on how the Germans assess division of intergenerational transfers among siblings academic.oup.com/sf/advance-a...
Figure 4

Average marginal effects, representative and wealthy sample. Notes: Each color represents one hypothesis. Based on N = 5,600 evaluations in the representative sample and N = 6,368 evaluations in the wealthy sample. Ninety-five percent confidence intervals shown.
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Klaus Pforr @klauspforr.eurosky.social · 12/02/2026
For a change, something we made ourselves: Together with my colleagues Tobias Roth, Andreas Horr, and @nataliebackes.bsky.social, we examined ethnic rent penalties. Do migrants pay higher rents for comparable housing than natives with similar characteristics? direct.mit.edu/euso/article...
direct.mit.edu
Migrant rent penalties in the German housing market
Abstract. We investigate whether migrants pay higher rents for comparable housing than natives with similar characteristics using nationally representative data from the 2018 German Microcensus. The d...
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Gizem Arikan @gizemarikan.bsky.social · 30/01/2026
Now officially published in jpeaceresearch.bsky.social. Link to full-text: academic.oup.com/jpr/advance-... #PoliticalScience #PoliticalPsychology
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Jamie Cummins @jamiecummins.bsky.social · 22/01/2026
Comparing registrations to published papers is essential to research integrity - and almost no one does it routinely because it's slow, messy, and time-demanding. RegCheck was built to help make this process easier. Today, we launch RegCheck V2. 🧵 regcheck.app
regcheck.app
RegCheck
RegCheck is an AI tool to compare preregistrations with papers instantly.
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British Journal of Political Science @bjpols.bsky.social · 11/01/2026
From November 2025 - Anti-Immigrant Bias in the Choice Between Punitive and Rehabilitative Justice - cup.org/49vUfVa - @riazsascha.bsky.social & @mhamjediers.bsky.social #OpenAccess
BJPolS abstract of a study on bias in judicial decisions affecting juvenile criminal offenders, emphasizing the impact on immigrant offenders and suggesting reforms for a more equitable justice system.
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Ely Strömberg @elystromberg.bsky.social · 12/12/2025
Mine and @pengzell.bsky.social paper "How Robust Are Country Rankings in Educational Mobility?" was published in @sociologicalsci.bsky.social yesterday edu.nl/y7ct3 More details in the future, but for now short explanation of what we did, and the origin story of the paper. [Thread below]
doi.org
How Robust Are Country Rankings in Educational Mobility?
Article: How Robust Are Country Rankings in Educational Mobility? | Sociological Science | Posted December 11, 2025
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Nathan Wilmers @natewilmers.bsky.social · 09/12/2025
I’m hiring a postdoc! Flexible in terms of details, but I’m looking for someone to collaborate with on research about labor market inequality. I’ll review applications as they come in and the posting just went up here: apply.interfolio.com/178873
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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DeZIM-Institut @dezim-institut.de · 04/12/2025
Rückkehr zur #Wehrpflicht? Neue Studie untersucht Einstellungen zur geplanten Wiedereinführung der Wehrpflicht und zeigt: Die junge Generation lehnt den #Wehrdienst klar ab. Ein verpflichtendes #Gesellschaftsjahr findet jedoch Unterstützung. Zur Studie 🔗 www.dezim-institut.de/publikatione...
Zustimmung nicht gleich Bereitschaft 
Die Studie zeigt: Es besteht eine große Diskrepanz zwischen der Zustimmung zu den Plänen und der persönlichen Bereitschaft zum Dienst an der Waffe. Die größten Unterschiede verlaufen nach Alter und Geschlecht – nicht nach Migrationshintergrund:

Obwohl sich 58 % aller Befragten für die Wiedereinführung aussprechen, würde nur knapp jede*r Vierte (23 %) tatsächlich dienen. Unter den 18- bis 28-Jährigen sogar nur jede*r Siebte (14 %). 

Nach Geschlecht unterschieden zeigen sich ebenfalls deutliche Abweichungen: 66 % der Männer, aber nur 49 % der Frauen plädieren für eine Wiedereinführung.Zitat von Dr. Jannes Jacobsen:
Während sich nur wenige selbst an der Waffe sehen, ist der breite Zuspruch zu einem verpflichtenden Gesellschaftsjahr deutlich. Der Wille, sich für die Gemeinschaft einzusetzen, ist also da – nur nicht militärisch. Da freiwilliges Engagement ein zentraler Bestandteil unserer Gesellschaft ist, sollte dieses Potenzial anerkannt und ausgeschöpft werden. Unsere Daten zeigen, dass besonders die Bereiche Umwelt- und Naturschutz, Kinder- und 
Jugendarbeit sowie Bildungseinrichtungen 
davon profitieren könnten.
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Andrew Gelman et al. @statmodeling.bsky.social · 25/11/2025
Problems with the so-called gender equality paradox statmodeling.stat.columbia.edu/2025/11/25/p...
statmodeling.stat.columbia.edu
Problems with the so-called gender equality paradox | Statistical Modeling, Causal Inference, and Social Science
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Max Planck Institute for Demographic Research (MPIDR) @mpidr.bsky.social · 25/11/2025
Gaza: Study Reveals Unprecedented Losses of Life & Life Expectancy Researchers from MPIDR & the Centre for Demographic Studies (CED) investigated the impact of the conflict in Gaza on mortality. Life expectancy 2024 fell to nearly half the level expected without the war. www.demogr.mpg.de/go/GazaLE
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Jonas Wiedner @jwied.bsky.social · 24/11/2025
Why did I visit the Facebook pages of 5500 German grocery stores on a grey lockdown day ca. 2021? You can now find out in AJS. Our work on ethnoreligious infrastructures is finally online in the ominous Volume 0: www.journals.uchicago.edu/doi/10.1086/...
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Arno Van Hootegem 🌱 @arnovanhootegem.bsky.social · 13/11/2025
There’s a new kid in town! Companies are now selling IVF and embryo selection based on genetic testing for traits related to health and even intelligence. We outline methodological and ethical concerns, and warn against risks for social inequality. With the fantastic @gaiaghirardi.bsky.social
fertstert.org
Embryo selection based on polygenic prediction risks reinforcing social inequality
The rise of companies offering embryo selection based on genetic testing has triggered heated debate about ethical acceptability, as well as the accuracy and scientific validity of these techniques. W...
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Maik Hamjediers @mhamjediers.bsky.social · 04/11/2025
New publication with @riazsascha.bsky.social in @bjpols.bsky.social As I’m concerned that the figures in the SI might get too little attention, here are some findings in visual form:
Two side-by-side plots showing how the immigrant penalty in applying JCL varies by 
(a) type of crime (the largest penalties appear for minor offenses such as theft or insults, smaller for serious crimes like murder or robbery).
(b) previous convictions (the penalty is strongest for offenders with no previous convictions and remains significant, though smaller, for those with multiple prior convictions).Scatterplot showing the relationship between the “immigrant penalty in the application of juvenile criminal law (JCL)” and the 2017 AfD vote share across German judicial districts. As AfD vote share increases, the immigrant penalty becomes larger (more negative; r=-0.45).plot showing judicial bias against immigrants from the Middle East and Africa between 2009 and 2018. The y-axis shows the difference in the probability of being sentenced under juvenile law compared to natives. The bias widens notably in 2014/2015, coinciding with an increase in the number of refugees from these regions (shown as grey bars in the bottom).
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Alex Patzina @patzinaalex.bsky.social · 01/11/2025
why do journals restrict the number of pages of the online supplementary material? I am confused! 😅
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European University Institute @eui-eu.bsky.social · 01/11/2025
🚨 Applications Now Open for the EUI PhD Programmes 2026-2027! 📊 Economics |⚖️ Law |📘 History | 🏛 Political and Social Sciences Join the EUI's 50th PhD cohort! Apply by 15 January 2026 (14:00 CET) for the academic journey of a lifetime! 👉: eui.eu/phd #EUIPhD #PhDOpportunity
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Sander Wagner @sanderwagner.bsky.social · 13/10/2025
New article out in @sociusjournal.bsky.social. It shows how closely linked motherhood penalties 🤰📉 and gender inequalities 👨‍💼💰👩‍💼 are by studying many local labour markets. Thread 👇 journals.sagepub.com/doi/10.1177/...
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