Maik Hamjediers

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/...

Growing up Different(ly than Last Time We Asked): Social Status and Changing Reports of Childhood Income Rank - Social Indicators Research How we remember our past can be shaped by the realities of our present. This study examines how changes to present circumstances influence retrospective reports of family income rank at age 16. While retrospective survey data can be used to assess the long-term effects of childhood conditions, present-day circumstances may “anchor” memories, causing shifts in how individuals recall and report past experiences. Using panel data from the 2006–2014 General Social Surveys (8,602 observations from 2,883 individuals in the United States), we analyze how changes in objective and subjective indicators of current social status—income, financial satisfaction, and perceived income relative to others—are associated with changes in reports of childhood income rank, and how this varies by sex and race/ethnicity. Fixed-effects models reveal no significant association between changes in income and in childhood income rank. However, changes in subjective measures of social status show contrasting effects, as increases in current financial satisfaction are associated with decreases in childhood income rank, but increases in current perceived relative income are associated with increases in childhood income rank. We argue these opposing effects follow from theories of anchoring in recall bias. We further find these effects are stronger among males but are consistent across racial/ethnic groups. This demographic heterogeneity suggests that recall bias is not evenly distributed across the population and has important implications for how different groups perceive their own pasts. Our findings further highlight the malleability of retrospective perceptions and their sensitivity to current social conditions, offering methodological insights into survey reliability and recall bias.

The 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)

This 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

And 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

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"Why Civil and Military Conscription Deserve a Second Look" by Sven Altenburger. (@svenaltenburger.bsky.social)
ubwp.buffalo.edu/jopblog/2025...

Full-time employment is all that matters? Quantifying the role of relevant and gender-exclusive life-course experiences for gender pension gaps Abstract. Gender pension gaps (GPGs) represent crucial indicators of gender inequalities over the life course. Despite reaching higher levels, they have re

💫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...
🧵👇

Did 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.

CLIC 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 👇

😅

I totally agree. Would be great if other surveys have been in the field and I will keep my eyes open 🧐

Thanks for the input. It would have been great to do this with some other countries as well, however, the design builds on surveys being in the field at that time, which unfortunately applied only to Czechia and Uruguay. And yes, they substantially differ in their historical connection to Russia...

This argument builds heavily on the linked paper by
@alexsorg.bsky.social @wolfgangwagner.bsky.social and @profonderco.bsky.social

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!

This 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.

The New Eugenics Companies Oops, I meant to say generational health and embryo selection

New blog post: The New Eugenics Companies
(Oops, I meant to say generational health and embryo selection)

Figure 5.3 | Energy use per capita per year of three groups of countries ranked by socio-economic development and displayed for each country based on four or five different income groups (according to data availability) as well as geographical representation. The final energy use for decent living standards (20-50 G) cap*' yr-') (Rao et al. 2019b) is indicated in the blue column as a reference for global range, rather than dependent on each country. Source: data based on Oswald et al. (2020).

Just a regular reminder, the wealthy, in every country use WAY more energy than is required for a decent living standard (blue bar)

Anti-immigrant bias in the German criminal justice system: who would have thought?

osf.io/preprints/so...

In 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/...

The uneven effects of gender parity: Trends in gender homophily in scientific publications, 1980–2019 This study examines gender collaboration patterns across male-dominated, gender-neutral, and female-dominated fields. Using data from the Web of Scien…

Thrilled 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...

Kicking 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. 👉 https://loom.ly/vO7QtrA

Immigrant–native pay gap driven by lack of access to high-paying jobs - Nature Data from nine European and North American countries reveal that the disparity in earnings between immigrants and natives is largely a result of segregation of immigrant workers into lower-paying jobs...

IN 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

🚨 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

New 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...

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📢 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

🪧 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 🧵👇

🚨 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/...

Image showing abstract

New 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

DIW Berlin: Researcher (f/m/x)

We are hiring a 3-year postdoc for the ERC-funded WEALTHTRAJECT project at DIW Berlin. More details here: www.diw.de/sixcms/detai...

Education bias - less educated

Education bias - more educated

Very interesting and important paper on the development of education bias in prob-based surveys in Germany www.tandfonline.com/doi/epdf/10....

Happy 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...

From parenthood to planet care? The evolution of environmental and climate concerns during family formation - Population and Environment We examine the effect of childbirth on parents’ environmental and climate concerns, focusing on potentially dynamic changes in concerns within a time span of 2 years before and up to 10 years after bi...

Right 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