Maik Hamjediers
Postdoctoral Max Weber Fellow at @eui-eu.bsky.social
Previously at @humboldtuni.bsky.social
🔗 https://mhamjediers.com
- Reposted by Maik HamjediersNow officially published in jpeaceresearch.bsky.social. Link to full-text: academic.oup.com/jpr/advance-... #PoliticalScience #PoliticalPsychology
- Reposted by Maik HamjediersComparing 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
- Reposted by Maik HamjediersFrom November 2025 - Anti-Immigrant Bias in the Choice Between Punitive and Rehabilitative Justice - cup.org/49vUfVa - @riazsascha.bsky.social & @mhamjediers.bsky.social #OpenAccess
- Reposted by Maik HamjediersNew paper in the American Journal of Sociology (with Michael Grätz), and a very good way to close an important chapter! www.journals.uchicago.edu/doi/10.1086/...
- Reposted by Maik HamjediersMine 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]
- Reposted by Maik HamjediersI’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
- Reposted by Maik HamjediersRückkehr 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...
- Reposted by Maik HamjediersProblems with the so-called gender equality paradox statmodeling.stat.columbia.edu/2025/11/25/p...
- Reposted by Maik HamjediersGaza: 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
- Reposted by Maik HamjediersWhy 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/...
- Reposted by Maik HamjediersThere’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
- 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:
- New paper with @mhamjediers.bsky.social German judges have discretion to apply rehabilitative juvenile criminal law (Jugendstrafrecht) or punitive adult criminal law to 18–20-year-old offenders. We show that immigrant youths are ~10 percentage points less likely to be sentenced under juvenile law
- Reposted by Maik HamjediersNew paper with @mhamjediers.bsky.social German judges have discretion to apply rehabilitative juvenile criminal law (Jugendstrafrecht) or punitive adult criminal law to 18–20-year-old offenders. We show that immigrant youths are ~10 percentage points less likely to be sentenced under juvenile law
- NEW - Anti-Immigrant Bias in the Choice Between Punitive and Rehabilitative Justice - cup.org/49vUfVa - @riazsascha.bsky.social & @mhamjediers.bsky.social #OpenAccess
- Reposted by Maik Hamjedierswhy do journals restrict the number of pages of the online supplementary material? I am confused! 😅
- Reposted by Maik Hamjediers🚨 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
- Reposted by Maik HamjediersNew 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/...
- Reposted by Maik HamjediersThe GSS asked the same people about their childhood income rank three different times. 56% changed their answer, even though what was trying to be measured couldn’t change! We dig into this in a new article at @socialindicators.bsky.social. doi.org/10.1007/s112... 🧵👇 (1/5)
- Reposted by Maik HamjediersThis important paper shows a precipitous drop in girls' achievement in recent years, closing a third of the gap with boys. Covid doesn't seem to be the smoking gun, but tiktok may be
- NEW: Mood, "Equalization through Deterioration: The Shrinking Gender Gap in Swedish School Grades" sociologicalscience.com/articles-v12...
- Reposted by Maik HamjediersAnd the 1st Replication Award of the Academy of Sociology goes to.. Sergio Lo Iacono, Wojtek Przepiorka, Vincent Buskens, Rense Corten, Marcel van Assen, and Arnout van de Rijt for "The competitive advantage of sanctioning institutions revisited: A multilab replication" #AkadSoz25 #sociology 1/
- Reposted by Maik Hamjediers"Why Civil and Military Conscription Deserve a Second Look" by Sven Altenburger. (@svenaltenburger.bsky.social) ubwp.buffalo.edu/jopblog/2025...
- Reposted by Maik Hamjediers💫Very happy to share that my first single-authored paper has been published in @sfjournal.bsky.social. I suggest to combine Life Course Feature Selection with Ñopo decomposition to disentangle which life-course events drive gender inequalities such as Gender Pension Gaps doi.org/10.1093/sf/s... 🧵👇
- Reposted by Maik HamjediersDid military service in Europe affect men's occupational choices? @mhamjediers.bsky.social presenting at #ECSR2025, very focused and passionate about research, as usual. We investigate selection into armed forces, licensed and male-dominated occupations across multiple countries.
- Reposted by Maik HamjediersCLIC in Cologne! 🧳🚋 #ECSR2025 kicks off in Cologne tomorrow and we are excited to see many CLICers & friends on the program 🔥 Come join us in these great sessions 👇
- In the context of debates on military capacities, this small research note uses the exact date of Russia’s invasion of Ukraine as an unexpected event during a survey to corroborate that willingness to fight rises with proximity to conflict (cf. doi.org/10.1017/eis.2025.12) Any feedback is welcome!
- A Threat Next Door? Causal Evidence that Russia's Invasion Increased Willingness to Fight in the Czech Republic but Not in Uruguay: osf.io/p6xf4
- This argument builds heavily on the linked paper by @alexsorg.bsky.social @wolfgangwagner.bsky.social and @profonderco.bsky.social
- Reposted by Maik HamjediersThis is the most interesting opinion piece I have read on the topic of polygenic embryo screening! The "having" and "doing" of motherhood, the concrete practicalities of IVF, the blur between traits and diseases, etc. Highly recommended reading.
- Reposted by Maik HamjediersNew blog post: The New Eugenics Companies (Oops, I meant to say generational health and embryo selection)
- Reposted by Maik Hamjediers[This post could not be retrieved]
- Reposted by Maik HamjediersAnti-immigrant bias in the German criminal justice system: who would have thought? osf.io/preprints/so...
- Reposted by Maik HamjediersIn our new article, Jens Beckert and I ask how "Capital and the Family" interconnect in contemporary capitalism. We argue that they come together in owning relations - and are crucial to today's economy. Read more in @bjsociology.bsky.social onlinelibrary.wiley.com/doi/10.1111/...
- Reposted by Maik HamjediersThrilled to share our paper with Iñaki Úcar (@enchufa2.es) and Jesús Prieto, just out in Social Science Research! 📝 The uneven effects of gender parity: Trends in gender homophily in scientific publications, 1980–2019 Free to download for the next 50 days: www.sciencedirect.com/science/arti...
- Reposted by Maik HamjediersKicking off the summer break with #EUIResearch ☀️ 🚻 @mhamjediers.bsky.social, Max Weber Fellow @eui-sps.bsky.social, explores how gendered norms on caregiving & commitment shape workplace dynamics. 👉 loom.ly/vO7QtrA
- Reposted by Maik HamjediersIN OTHER NEWS: check out our new COIN paper on immigrant--native pay gaps in advanced economies published in @nature.com this afternoon! Specifically, we study the relative contribution of within-job unequal pay vs between-job segregation to earnings disparities across immigrant generations. 1/9
- Reposted by Maik Hamjediers🚨 New paper out! 🚨 We use Eurobarometer data to explore how strongly people across the EU reject the “no means yes” rape myth. Gender gaps persist, but shrink with higher gender equality and “only yes means yes” laws. w/ @saraalice.bsky.social l (@unibe.ch) 👉 doi.org/10.1177/23780231251351676
- Reposted by Maik HamjediersNew WP w/ @riazsascha.bsky.social: via >42 million placebo tests, we show type I error inflation in Unexpected Event during Survey Designs (UESD), propose an adjustment, implement via new R package uesdRobust, and demonstrate utility by replicating two top UESD studies. osf.io/preprints/os... 1/9
- Reposted by Maik Hamjediers📢 New study on the gender gap in STEM aspirations across educational pathways in Switzerland. Gender gaps are larger in vocational (VET) routes than in academic pathways and existing mechanisms explain less of this gap in VET. w/ @nennstielr.bsky.social @unibe.ch👉 doi.org/10.1186/s40461-025-00187-3
- Reposted by Maik Hamjediers🪧 New research 🪧 osf.io/preprints/os... Can protests move bystanders, people who observe protests without being part of the march? We conducted a 3-wave field experiment during real Fridays for Future (FFF) protests in Berlin. Here's what we found 🧵👇
- Reposted by Maik Hamjediers🚨 Are young women becoming more left-wing & young men more right-wing? We analyzed 32 European countries (1990–2023). 📊 Some show growing gaps—others don’t. 📊 Gaps tend to be bigger where gender equality is higher. w/ @hudde.bsky.social 👉 doi.org/10.1093/esr/...
- Reposted by Maik HamjediersNew study alert, just out in SER! 🚨 What really drives gendered occupational choices among adolescents? ➡️It might not be workplace characteristics (e.g., salary), but skill requirements. academic.oup.com/ser/advance-... @sasemeeting.bsky.social, @snsf.ch, @unibe.ch ern.bsky.social, @unisg.ch
- Reposted by Maik HamjediersWe are hiring a 3-year postdoc for the ERC-funded WEALTHTRAJECT project at DIW Berlin. More details here: www.diw.de/sixcms/detai...
- Reposted by Maik HamjediersVery interesting and important paper on the development of education bias in prob-based surveys in Germany www.tandfonline.com/doi/epdf/10....
- Reposted by Maik HamjediersHappy to share that my last PhD article found a home at RSSM. Together with Julia Lang we examine how employees expect their co-workers to react (exit or voice) to perceived wage injustice—and how these expectations vary by gender and workplace context. doi.org/10.1016/j.rs...
- Reposted by Maik HamjediersRight on time for #WorldEnvironmentDay🌍: Does having a child make parents care more about the planet? Together with @guzoch.bsky.social, I found: not always—and not in the same way for everyone. 📄 New study in Population and Environment: doi.org/10.1007/s111... #ClimateChange #Parenting #Sociology
- Reposted by Maik HamjediersDEIprograms shape more than just numbers. AnjaAbendroth and I show: in workplaces with gender quotas&mentoring for women, employees hold significantly more egalitarian gender beliefs. At a time of global backlash, this is a reminder of why such policies matter 🔗 journals.sagepub.com/doi/10.1177/...
- Reposted by Maik HamjediersInteresting paper by @riazsascha.bsky.social and @mhamjediers.bsky.social. Judges are less likely to apply rehabilitative juvenile law to immigrants than to natives. The immigrant-native gap is even larger in judicial districts with a higher AfD vote shares.
- Anti-Immigrant Bias in the Choice Between Punitive and Rehabilitative Justice osf.io/yvfzx We study bias in judicial authorities' efforts to rehabilitate and reintegrate immigrant offenders into society. Our empirical strategy leverages a unique feature of the German criminal cod #sociology
- Reposted by Maik HamjediersImportant research by @johannarickne.bsky.social @ollefolke.bsky.social and great to see it published in our own @europeansocreview.bsky.social doi.org/10.1093/esr/...
- Which occupations carry the highest risk of sexual harassment—and who is doing the harassing? Our new study finds two distinct patterns depending on whether harassment comes from inside or outside the workplace. CEPR WP: cepr.org/publications... Ungated: drive.google.com/file/d/1jPOV... 🧵 1/
- Reposted by Maik Hamjediers🚨Contrary to our expectations, we find that people perceive arrangements where women perform a higher proportion of housework as less fair than scenarios where men do so.

- New paper with Daria Tisch (@dariatisch.bsky.social) on fairness perceptions of housework divisions using a multi-factorial experiment in the U.S., now out in one of my favorite journals––Gender and Society: doi.org/10.1177/0891...
- Reposted by Maik Hamjediers👏The 2025 Infrastructure Prize for Sociology goes to @socarxiv.bsky.social, represented by @philipncohen.com , for its accessible and timely contribution to the dissemination of sociological knowledge. kohlifoundation.eu/programs-the...
- Reposted by Maik Hamjediers📣 Labor market scholars & anyone curious about flexible working — don’t miss this! @heejungchung.bsky.social will be giving an online talk on the flexibility paradox this Monday, 14 April. ✉️ Register here: socialpolicygroup@hertie-school.org
- Reposted by Maik Hamjediers🎓 EUI Virtual Open Week - 𝘖𝘱𝘦𝘯𝘪𝘯𝘨 𝘶𝘱 𝘯𝘦𝘸 𝘱𝘢𝘵𝘩𝘴! 📅 12-15 May ✔️Explore PhDs, Executive Education, Fellowships & Master’s in 4 days of interactive online sessions. 👉Register🔗 loom.ly/HlCjW74 #EUIopenWeek #EUIPhD #EUImasters #EUIexeced #EUIfellowships @eui-stg.bsky.social @eui-schuman.bsky.social
- Reposted by Maik HamjediersNew👇post summarizes main arguments from our Sociology paper (w. @mikesavagelse.bsky.social, @marentoft.bsky.social): how different strands of #class analysis can be easily mobilized to study #wealth and #asset inequalities in its various forms & shapes.💰🏰💸 Original paper: doi.org/10.1177/0038...
- How can class analysis – in the traditions of Marx, Weber & Bourdieu – help us think about wealth inequality in a more nuanced way? @norawaitkus.bsky.social explores in our latest post, which is our 100th since launching the blog 🎉 🎉 #LSEInequalitiesBlog
- Reposted by Maik HamjediersA perfectly organized RC28, brilliant presentations, and sunny Milan vibes ☀️ As always, truly stimulating and fun to be with the CLIC crew (and several CLICers are missing from the pic!) #RC28 @isa-rc28.bsky.social
- Reposted by Maik HamjediersOur paper with @gaiaghirardi.bsky.social is now out at SSR! Have a look if you are interested in social stratification and/or sociogenomics Below are the main findings and contributions 1/6 doi.org/10.1016/j.ss...