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Johannes Breuer

@jobreu.wsocial.eu
49 followers 118 following 2 posts

Professor of Digital Social Science at the University of Duisburg-Esssen and head of the team Research Data & Methods at the Center for Advanced Internet Studies (CAIS) Main account: @johannesbreuer.com www.johannesbreuer.com

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Reposted by Johannes Breuer
Johannes Breuer @johannesbreuer.com · 13h
Registration for our hybrid symposium on the work of research ethics committees in the social and behavioral sciences at @cais-research.bsky.social with @lakens.bsky.social, Hella von Unger, and Christian Merz on Nov 25th is still possible until Nov 6th: eveeno.com/320501318
eveeno.com
Symposium: More than compliance checks and harm prevention?
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Reposted by Johannes Breuer
Jake Grumbach @jakemgrumbach.bsky.social · 09/10/2026
New working paper: the Norwegian wealth tax was a huge success. The "exodus" of wealthy people never happened (less than 100 individuals left). Tax revenue increased by 71.5%. No changes in business activity or investment. www.nber.org/papers/w35854
Taxing Entrepreneurial Wealth: Evidence from
Norway, 2021-2025
Marius A. K. Ring
WORKING PAPER 35854|
DOl 10.3386/w35854
ISSUE DATE October 2026
Whether imposing higher taxes on business owners adversely affects business activity by constraining investment and inducing capitalist flight is a central question in the ongoing debate on how to tax the ultra wealthy. To shed new light, I exploit a series of related Norwegian reforms during 2021-2024 that increased dividend tax rates, removed migration-related capital gains tax loopholes, and nearly doubled the effective marginal tax rate on business wealth. These reforms spurred international debate and, allegedly, an "exodus" of Norwegian billionaires (Financial Times,
2023). While I document clear effects on migration, these responses are concentrated among the top 0.1% of the wealth distribution and mostly confined to 2022 and 2023. My results indicate that at most 100 individuals left due to the reforms. I find no evidence of significant outmigration or reduced inflows of startup founders or inventors. I estimate that absent any outmigration, wealth tax revenues would have increased by 75% from 2021 to 2024. Reform-driven outmigration lowers the revenue gain to 71.5%. My findings further show that outmigrating owners' firms remain economically active and do not reduce investment. In a broader set of analyses, I examine whether business outcomes are affected, regardless of whether owners outmigrate, since firms may reduce investment both due to liquidity constraints or distortions to owners' savings decisions. I compare firms owned by Norwegian individuals subject to the wealth tax with firms owned by foreigners and other tax-exempt entities. By merging historical ownership data from Orbis with the Norwegian shareholder register, I perform these analyses on both Norwegian and foreign-domiciled firms.
Across settings, I find no evidence that Norwegian-owned firms pay out more dividends or invest less after the reforms,…
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Reposted by Johannes Breuer
SCOPE @scope-rptu.bsky.social · 08/10/2026
We’re hiring a W3 Professor in Computational Social Science at RPTU University Kaiserslautern-Landau (campus Landau). Application deadline: 14 October 2026 Please share with anyone who might be interested. jobs.rptu.de/jobposting/0...
jobs.rptu.de
W 3-Professur für "Computational Social Science" (m/w/d)
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Reposted by Johannes Breuer
Stephan Winter @stephanwinter.bsky.social · 02/10/2026
🎓 We‘re searching for a Full Professor of Computational Social Science - very much looking forward to your applications 🤩 Feel free to reach out to me for any questions! jobs.rptu.de/jobposting/0...
jobs.rptu.de
W 3-Professur für "Computational Social Science" (m/w/d)
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Reposted by Johannes Breuer
Nicolai Berk @nicolaiberk.bsky.social · 07/10/2026
We're excited that Leah von der Heyde will join us for the next session of the TaDa Fall Speaker Series: “How (Not) to Use LLMs in Survey Research” When? Wednesday, October 14, 17:00 (Berlin time) Sign up for our newsletter at tada.cool for the zoom link!
tada.cool
TaDa — Text-as-Data Speaker Series
Free online talks on text-as-data, NLP and machine learning in the social sciences. Biweekly Wednesdays, 17:00 Berlin time, on Zoom.
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Reposted by Johannes Breuer
James Balamuta @coatless.bsky.social · 04/10/2026
webrarian is a new R package. It turns a folder of R scripts and data into a static website where R runs in the visitor's browser, with no compute server and nothing to install. blog.thecoatlessprofessor.com/posts/introd... #rstats #webr #webassembly
A card for the R package webrarian. Large text reads "A folder in. A website out." On the left, a small card lists a folder named lab-01 holding lab.R, setup.R and a data folder. A red arrow points from it to a browser window that shows a scatterplot of car weight against miles per gallon with brick-red points. The address coatless-wasm.github.io/webrarian is on the card.
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Reposted by Johannes Breuer
Igor Grossmann, PhD @igi.bsky.social · 05/10/2026
We're hiring research engineers, research associates & several postdocs at the Wisdom & Culture Lab @UWaterloo to build experiments, tools & models on how AI shapes human reasoning, decisions & culture. Psych, cogsci, ML/NLP, HCI & eng backgrounds welcome. uwaterloo.ca/wisdom-and-c...
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Reposted by Johannes Breuer
Lukas Röseler @aufdroeseler.bsky.social · 05/10/2026
What do we expect of robustness reproductions in the age of AI? Help us find out at the Münster Reprohack workshop from December 2-4. We will conduct AI-led and human-led robustness reproductions, that are subsequently submitted to @r2journal.bsky.social Apply at indico.uni-muenster.de/e/reprohack
indico.uni-muenster.de
ReproHack
ReproHack: Join us for a mentored three-day reproduction hackathon! Background When building on past research, we rely on it being correct and robust - and yet, these characteristics are rarely assess...
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Reposted by Johannes Breuer
Johannes Breuer @johannesbreuer.com · 06/10/2026
Neues Open-Access-Paper aus der @mepsy.bsky.social : "Künstliche Intelligenz: Neue Technologie, bekannte Fragen? Eine Perspektive der Fachgruppe Medienpsychologie" doi.org/10.1026/0033...
doi.org
Künstliche Intelligenz: Neue Technologie, bekannte Fragen? Eine Perspektive der Fachgruppe Medienpsychologie | Psychologische Rundschau
Zusammenfassung: Dieses Positionspapier diskutiert die Rolle und Bedeutung von Künstlicher Intelligenz (KI) für die Medienpsychologie entlang von drei Leitfragen: 1) Wie verändert KI das Fach Medienps...
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Johannes Breuer @jobreu.wsocial.eu · 06/10/2026
Thanks for pointing this out! I will see how it goes with two accounts and then decide how to continue...
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Johannes Breuer @jobreu.wsocial.eu · 06/10/2026
I now also have a verified account on @wsocial.eu 🎉 As I was a bit confused by the options and steps in the registration process, I missed the option of migrating my @bsky.app account, so now I have two accounts on the ATProto network. This one and my main account @johannesbreuer.com
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