Mathias Wullum Nielsen

It begins. Clearly incriminating evidence against president of the United States.

Epstein to Maxwell, April 2, 2011:

"i want you to realize that that dog that hasn't barked is trump. [VICTIM] spent hours at my house with him ,, he has never once been mentioned. police chief. etc."

Super cool, Roman!

Four three-year postdoctoral positions in the project Slow-Motion Democracy - Vacancy at Aarhus University Vacancy at Department of Political Science, Aarhus University

Four (!) three-year postdoc positions available at @au.dk: international.au.dk/about/profil...

Join an incredible team & help understand the psychological & political implications of the clash between high-speed society & slow-speed democracy.

Please share! @tboeggild.bsky.social can help with Qs

Sage Journals: Discover world-class research Subscription and open access journals from Sage, the world's leading independent academic publisher.

Out now in @actasociologica.bsky.social: “Momentary symbols: Tracing the visual expressions of collectives”

with @nicolemilmandoerr.bsky.social & @mathiaswullum.bsky.social

journals.sagepub.com/doi/10.1177/...

A🧵 on our approach and findings:

How are cultural tastes stratified? Evidence from library borrowing for the entire population of Denmark Abstract. Research shows that cultural tastes are socially stratified. Yet, most of this research relies on small-sample surveys and includes only a few di

Even in Denmark, cultural tastes are socially stratified. With some quite cool library data we find strong gradients by education and wealth - important as wealth is rarely studied in cultural stratification research

doi.org/10.1093/esr/...
OA: osf.io/ar2xc_v2/dow...
@europeansocreview.bsky.social

Call for two or more open-rank academic positions in Sociology

Dept. of Soc. at the Uni of Copenhagen invites applications for two or more open-rank professorships!

We cover a wide range of topics and and methods, and welcome candidates with new research agendas or profiles that complement our existing strenghts.

Details here: jobportal.ku.dk/videnskabeli...

Now imagine all your best scientists leaving your country because they’re paid far more across the pond.

Cover page for the manuscript: Morey, R. D., & Davis-Stober, C. P. (2025). On the poor statistical properties of the P-curve meta-analytic procedure. Journal of the American Statistical Association, 1–19. https://doi.org/10.1080/01621459.2025.2544397

Abstract for the paper: The P-curve (Simonsohn, Nelson, & Simmons, 2014; Simonsohn, Simmons, & Nelson, 2015) is a widely-used suite of meta-analytic tests advertised for detecting problems in sets of studies. They are based on nonparametric combinations of p values (e.g., Marden, 1985) across significant (p < .05) studies and are variously claimed to detect “evidential value”, “lack of evidential value”, and “left skew” in p values. We show that these tests do not have the properties ascribed to them. Moreover, they fail basic desiderata for tests, including admissibility and monotonicity. In light of these serious problems, we recommend against the use of the P-curve tests.

Paper drop, for anyone interested in #metascience, #statistics, or #metaanalysis! @clintin.bsky.social and I show in a new paper in JASA that the P-curve, a popular forensic meta-analysis method, has deeply undesirable statistical properties. www.tandfonline.com/doi/full/10.... 1/?

Du poids du racismes dans les inégalités de revenus en France

The Supreme Court is out of control. To allow the president, without any explanation, to unilaterally dismantle agencies created by an Act of Congress is to endow the president with sovereignty. There is no justification, because they haven’t given one. Our country is in big trouble.

When I got tenure, I decided to use it start a new research agenda, studying US science in the 20th century, how it became dominant, what held it back, and what we can do better. Here's the first pub (with Scott Kim).

A 30% tariff on EU exports would hurt businesses, consumers and patients on both sides of the Atlantic.

We will continue working towards an agreement by August 1.

At the same time, we are ready to safeguard EU interests on the basis of proportionate countermeasures.

→ europa.eu/!tPvKn8

"...male-dominated STEM programs actually rate female applicants’ written application materials and interviews higher. Female applicants are still less likely admitted to such programs than males..."

This month in our journal, @sociologicalsci.bsky.social

Every cut that the government makes to social services is effectively a tax on women. Because they're the ones who will be expected to fill in the gaps.

4 men in jeans, t-shirts, bullet proof vests, balaclavas pulled up to their eyes, hats. They are armed and have badges but are not in uniform. They look both incredibly menacing and unbelievably dumb. They are standing at the end of an office hallway.

It is true that sometimes New York City is frightening. For example today these men were loitering in the hallway of the 12th floor of the federal building.

How My Reporting on the Columbia Protests Led to My Deportation As an Australian who wrote about the demonstrations while on campus, I gave my phone a superficial clean before flying to the U.S. I underestimated what I was up against.

This is shocking. Pure totalitarianism from DHS, and also blatantly unconstitutional.

www.newyorker.com/news/the-led...

Interesting discussions at our Funders Panel #ICSSI2025

Our first invited speaker Arnout van de Rijt @arnoutvanderijt.bsky.social just kicked off the conference with a great talk on: Do grant proposal texts matter for funding decisions? A field experiment
#ICSSI2025

Fariba Karimi continues at #ICSSI2025 with gender-related themes in her phenomenal keynote "Inequalities in science and the impact of networks"

The conference was just opened by @hckongsted.bsky.social. Welcome everyone in Copenhagen, and enjoy the next 3 days at #ICSSI2025!

If we are all willing to dig in and sacrifice, by growing our red bars we can do our part in making the green bar even bigger.

Cool! We have an ongoing project on Global North-South disparities in science, and would love to chat. Will read your work more carefully and reach out.

Wow. Congrats! Looks very cool.

Screenshot of the draft's title page

📄 Whose expert knowledge informs policymaking around the world?

@rsenninger.bsky.social and I analyze data from 1.2 million government policy documents from 185 countries—and find a prominent pattern:

🌍 Policy evidence is overwhelmingly sourced from the Global North.

Preprint: osf.io/w8q3y

🧪🧵👇

Economists looking at an idea from sociology literature that they will be the first to write a paper on.

Bernie Sanders' office has put out a report this morning on Trump's NIH cuts: "Trump officials effectively cut $2.7 billion in [NIH] funding in the first three months of 2025 – including a 31 percent cut to cancer research through March, compared to the same timeframe last year."

Screenshot of a paper published in the Brill journal Comparative Sociology on 23 April 2025, title Stereotypes of the Intelligence of Nations, by Sebastian Jensen and Emil Kirkegaard

Editorial Board Thora Margareta Bertilsson, University of Copenhagen (Denmark) Alfons Bora, Universitat Bielefeld (Germany) Matteo Bortolini, University of Padua (Italy) Vincenzo Cicchelli, Université Paris Descartes (France) Jean-Pascal Daloz, University of Strasbourg (France) Yves Dezalay, Ecole des Hautes Etudes en Sciences Sociales (EHESS), Paris (France) Benjamin Gregg, University of Texas-Austin (USA) Juergen R. Grote, Universität Potsdam and Hertie School of Governance, Berlin (Germany) Jeffrey Halley, University of Texas-San Antonio (USA) Andreas Hess, University College Dublin (Ireland) John Higley, University of Texas-Austin (USA) Hans-Joachim Lauth, Würzburg University (Germany) Steven Levitsky, Harvard University (USA) Andrea Maccarini, University of Padova (Italy) Maria Malatesta, University of Bologna (Italy) Wolfgang Merkel, WZB Berlin Social Science Center (Germany) Leonardo Morlino, LUISS Guido Carli, Rome (Italy) Gerardo Munck, University of Southern California, Los Angeles (USA) Anton Pelinka, Central European University, Budapest (Hungary) Huang Ping, Institute of American Studies, Chinese Academy of Social Sciences (China) Masamichi Sasaki, Chuo University, Tokyo (Japan) Carsten Schneider, Central European University, Budapest (Hungary) Catalina Smulovitz, Universidad Torcuato Di Tella, Buenos Aires (Argentina) Gunther Teubner, Johann Wolfgang Goethe-Universitat, Frankfurt (Germany) Ming-Chang Tsai, National Taipei University (Taiwan)

Is anyone here on the Editorial Board of the Brill journal Comparative Sociology? Raised a concern last year about 2 papers published in the journal which used "national IQ" data. The editor & ethics team dismissed my concern without an investigation. The journal has just published another NIQ paper

there are a lot of good reasons not to use musk's platform but this has always been a big one: you post at the pleasure of the world's richest man, whose project is to punish his political enemies

As we were writing this paper the NSF ADVANCE program was "archived" (cancelled). A heavy moment for us mid-paper. The results are important - check it out:

ADVANCE is one of the (if not the) longest running NSF programs, and, unusually for the NSF, is a collaboration among multiple directorates.
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