Peter Fallesen

Peter Fallesen

@pfallesen.bsky.social

Professor of Demography. I study bad stuff in families. ROCKWOOL Foundation, University of Copenhagen and Stockholm University. AE at EJP and ESR. President of the Danish Demographic Society. www.peterfallesen.com

668 followers692 following82 posts

Peter Fallesen reposted

Carl T. Bergstrom
@carlbergstrom.com

Large language models are not the sorts of entities that can be held responsible. This lede should read "Using AI agents, Anthropic tried to gain access to a range of government websites...."

Carl Quintanilla@carlquintanilla.bsky.social

(NYT) - Artificial intelligence agents created by Anthropic, acting on their own, tried to gain access to a range of government websites, filled out visa applications on the State Department’s website and sent a fake homicide tip to Philadelphia’s Police Department. www.nytimes.com/2026/10/09/t...

Peter Fallesen reposted

Data Colada
@datacolada.bsky.social

An influential paper by Ariely & Wertenbroch (2002) reported two studies with tampered data. Post 1 of 2. datacolada.org/138

datacolada.org[138] Artificial Deadlines (Part 1): Evidence of Fraud in an Influential Study About ProcrastinationA new paper in Psychological Science (.htm) reports a failure to replicate Study 2 of Ariely and Wertenbroch’s influential article entitled, “Procrastination, Deadlines, and Performance: Self-Contr…

Peter Fallesen reposted

UPS Florence
@florenceups.bsky.social

📢 Applications are now open for the PhD Programme in Life Course Research! We offer 10 PhD scholarships in Demography & Social Statistics. 🗓️ Deadline: August 6, 2026. A great opportunity to join a stimulating research environment! 🌍

Peter Fallesen reposted

Evelina Akimova
@evakimova.bsky.social

📄 New paper in PNAS! Using data from ~40,000 Norwegian trios, we extend evocative gene–environment correlation to family demography. Accounting for parental PGIs, most traits showed no associations, but children's ADHD PGI predicted parental separation. www.pnas.org/doi/10.1073/...

pnas.orgPNASProceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

Peter Fallesen reposted

Rebecca Sear
@rebeccasear.bsky.social

Summary of a fascinating paper which reconstructed historical trends in child stunting worldwide: "the reductions achieved in child stunting represent one of the great, if underappreciated, improvements in human welfare"

IUSSP@iussp.bsky.social

N-IUSSP: Child stunting: lessons from global history, by Eric Schneider www.niussp.org/environment-... #demography #populationstudies

niussp.orgChild stunting: lessons from global history - N-IUSSPChild stunting, being too short for one’s age, is widely seen as a problem of today’s poorer countries. A systematic review of data from 122 countries since the 19th century ... Read more

Peter Fallesen reposted

Leverhulme Centre for Demographic Science, Oxford University
@oxforddemsci.bsky.social

Did the iPhone *really* cause the baby bust? A more skeptical reading of the new viral study from LCDS Deputy Director @drjenndowd.bsky.social jenndowd.substack.com/p/did-the-ip...? #demography #econsky #causalsky @nuffieldcollege.bsky.social @oxpop.bsky.social

jenndowd.substack.comDid the iPhone Cause the Baby Bust?I'm not so convinced. An interesting new paper highlights the power and pitfalls of simple stories

Peter Fallesen reposted

Pat Hastings
@ophastings.bsky.social

What’s happened to income-group gaps in parental spending on children in the U.S.? For the last 45 years, they just. keep. getting. wider. In a new @socarxiv.bsky.social working paper, I present updated evidence on trends in spending on childcare, education, and extracurricular activities.

Peter Fallesen reposted

Tom VanHeuvelen
@tvanheuvelen.bsky.social

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.orgLuck and Predictability in the Life CourseThere 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...
Peter Fallesen
@pfallesen.bsky.social

New paper, open access in EJP We link the Danish GGS to administrative records and find recall error in cohabitation histories grows ~0.5–0.6pp/year — ~12pp over 20 years. We also show how to correct it with regression calibration using a small validation subset. link.springer.com/article/10.1...

link.springer.comLong-Term Recall Error in Retrospective Family Surveys: Cohabitation Histories in Denmark - European Journal of PopulationRecall questions provide the possibility of obtaining longitudinal information in cross-sectional surveys and are often used in family research. Yet, recall instruments may suffer from measurement iss...

Peter Fallesen reposted

Ilya Kashnitsky
@ikashnitsky.phd

🇩🇰 Yesterday we had a wonderful yearly meeting of @demografi.dk — Danish Demography Day with one session of brilliant speakers and plenty of coffee break time to socialize 🫂 (👇 SDU is ready for the yearly science fest for kids 😍)

Peter Fallesen reposted

David Reimer
@davidreimer.bsky.social

Very happy about this publication. We managed to pool two unique data sources: Behavioral reading data from the reading app Bookbites (used in many schools in DK) and population level data on library-loans. Both sources of data confirmed the same trend regarding gender differences in reading.

Ea Blaabæk@blaabaek.bsky.social

When schools close, due to COVID-19 lockdown or holidays, the gender gap in reading increases. This is a challenge as boys already struggle more with reading skills than girls. New paper in @pnas.org with Emil Smith, @davidreimer.bsky.social & @madsjaeger.bsky.social www.pnas.org/doi/10.1073/...

pnas.orgPNASProceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
Peter Fallesen
@pfallesen.bsky.social

Can a digital intervention buffer the long-term health costs of divorce? In our new JMIR paper, we link an RCT of 1,856 Danish divorcees to national registers over 5 years. Result: 28% fewer filled psych prescriptions + delayed reductions in GP visits and hospitalizations. jmir.org/2025/1/e69387

jmir.orgDigital Health Intervention for and Long-Term Health Outcomes of a Divorce Cohort With Linked Danish Data: 5-Year Posttrial Follow-Up of a Randomized Controlled TrialBackground: Digital health interventions are increasingly promoted as scalable and cost-effective approaches to support mental health and resilience. Short-term benefits are well documented, but evide...

Peter Fallesen reposted

Philip N Cohen
@philipncohen.com

Low birth rates have modest long run negative effects, after good effects for a few decades, and raising birthrates exacerbates dependency. A giant, apparently permanent, disconnect between expert opinion (e.g., below) versus manufactured panic hype on this issue pubs.aeaweb.org/doi/pdfplus/...

Peter Fallesen reposted

Zach Parolin
@zparolin.bsky.social

I'm hiring a post-doctoral researcher to join us at the University of Oxford and our @inetoxford.bsky.social Inequality team. Ideal candidate has experience in the fields of inequality, social mobility, and/or public policy. We can sponsor visas for non-UK applicants. www.inet.ox.ac.uk/vacancies

inet.ox.ac.ukVacanciesJobs and Vacancies at INET Oxford, The Institute for New Economic Thinking at the Oxford Martin School, University of Oxford

Peter Fallesen reposted

Per Engzell
@pengzell.bsky.social

JOB! I'm hiring a postdoc for 2 years on my ERC MaMo project. Looking for someone with strong quant methods, ongoing work close to the project's aims, and a desire to publish in sociology. Start flexible in the next 12 months. Formal call out shortly, but contact me first.

Peter Fallesen
@pfallesen.bsky.social

So fortunate to be allowed to play a tiny role in this gigantic effort lead by @moberndorfer.bsky.social

Moritz Oberndorfer@moberndorfer.bsky.social

New paper finally published! Using data on 78 million births from 15 countries, we found that babies conceived during the COVID-19 pandemic have a different parental socioeconomic composition than expected had the pandemic not occurred. doi.org/10.1038/s414... @natcomms.nature.com @helsinki.fi

Peter Fallesen reposted

Arnout van de Rijt
@arnoutvanderijt.bsky.social

"[S]ome countries often characterized as low-mobility emerge as matching or surpassing the egalitarian Nordic countries, reinforcing the view that wider mobility differences cannot be attributed solely to the education system." This month in our journal, @sociologicalsci.bsky.social

Sociological Science@sociologicalsci.bsky.social

NEW: Ely Strömberg, Per Engzell, "How Robust Are Country Rankings in Educational Mobility?" sociologicalscience.com/articles-v12...

sociologicalscience.comsociologicalscience.com

Peter Fallesen reposted

John Holbein
@johnholbein1.bsky.social

Damning overview of the nudging literature. "[We] provide the most comprehensive synthesis of the effectiveness of nudging." "We find a small aggregated effect size." "[Our results show] the urgent need for higher quality, preregistered meta-analyses to clarify the true impact [of nudging]."

Peter Fallesen reposted

Jenny Chanfreau
@jenchanfreau.bsky.social

Our new paper: Austerity as reproductive injustice: did local government spending cuts unequally impact births? led by Laura Sochas is out now OA in @sfjournal.bsky.social

url.uk.m.mimecastprotect.comAusterity as reproductive injustice: did local government spending cuts unequally impact births?Abstract. Large local government spending cuts in England, spanning over a decade of austerity policies, have severely restricted the universal services an

Peter Fallesen reposted

Alessandro Martinello 🇪🇺
@alemartinello.com

In an interesting turn of events, US and Danish government came up with the same to help with the affordability crisis: longer mortgages! That has sparked some backlash. But in the US, it seems the discussion is focusing on the wrong stuff. Well, let’s try to learn from 🇩🇰.

Peter Fallesen reposted

Katya Ivanova 🟥
@katyaoivanova.bsky.social

Our #Sociology department is looking for an #AssistantProfessor in the field of Social Inequality (with the possibility for a permanent contract). www.academictransfer.com/en/jobs/3546... @sociologytiu.bsky.social @tilburg-university.bsky.social @academic-chatter.bsky.social #academicjobs

academictransfer.comUniversitair Docent in de Sociologie van Sociale OngelijkheidTilburg University | Tilburg School of Social and Behavioral Sciences is op zoek naar een Universitair Docent in de Sociologie van Sociale Ongelijkheid, Departement Sociologie, locatie Tilburg.