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Jasper Tjaden

@jaspertjaden.bsky.social
1.7K followers 313 following 55 posts

Professor of Social Research and Public Policy at Uni Potsdam, migration, integration, elections, social media, causal inference, Computational Social Science.

PostsRepliesMedia
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Martin Fuchs 🦊 @wahlbeobachter.bsky.social · 02/09/2026
Weitere spannende Inisghts zum TikTok-Wahlkampf in Sachsen-Anhalt gibts frisch beim Potsdam Social Media Monitor von Prof. @jaspertjaden.bsky.social & Johannes Wolfgram www.psmm.info/studies/ltw2... Mega spannend. Super Arbeit. 🎉👏 #ltwlsa #politiktok
psmm.info
Wer im Wahlkampf auf TikTok gesehen wird / Potsdam Social Media Monitor
Vor den Landtagswahlen im September 2026 wertet der TikTok-Monitor des Potsdam Social Media Monitor die öffentlichen Zahlen von rund 2.700 politischen Konten aus.
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Weizenbaum-Institut @weizenbauminstitut.bsky.social · 19/05/2026
🔍 𝗪𝗶𝗲 𝗯𝗲𝗲𝗶𝗻𝗳𝗹𝘂𝘀𝘀𝘁 𝗧𝗶𝗸𝗧𝗼𝗸 𝗽𝗼𝗹𝗶𝘁𝗶𝘀𝗰𝗵𝗲 𝗠𝗲𝗶𝗻𝘂𝗻𝗴𝗲𝗻 vor Wahlen? Jetzt für „Dein Feed, Deine Wahl“ mitforschen! Gesucht werden Menschen ab 16 – besonders aus Berlin, Sachsen-Anhalt & MV. 💻 5 Treffen 💶 188 € 📅 Bewerbung bis 29.05. 𝗝𝗲𝘁𝘇𝘁 𝗖𝗶𝘁𝗶𝘇𝗲𝗻-𝗦𝗰𝗶𝗲𝗻𝘁𝗶𝘀𝘁 𝘄𝗲𝗿𝗱𝗲𝗻: dein-feed-deine-wahl.de/citizen-scie...
dein-feed-deine-wahl.de
Your Feed, Your Choice
Your Feed, Your Choice
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Demography - the flagship journal of PAA @readdemography.bsky.social · 05/06/2026
“Mobility Framing Effects”: @nmurken.bsky.social @jaspertjaden.bsky.social & Schewel show that elicitation of migration aspirations has a dramatic effect, finding a 12-ppt drop in intention when asked abt intention to stay. @rwi.bsky.social @unipotsdam.bsky.social read.dukeupress.edu/demography/a...
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Stephan Lewandowsky @lewan.uk · 04/06/2026
🧵 Thread: Does the internet threaten democracy? I argue that it does in my latest piece in Science: doi.org/10.1126/scie... Here's the short version. 1/9 1/10
doi.org
The architecture of the internet creates risks for democracy
Will democracy survive the internet? Do we need to choose between Facebook’s surveillance capitalism or democracy? Layered lines of evidence can inform questions like these. When considered together, the evidence gives rise to a concerning picture, as summarized in a recent report for the European Commission that I co-led.
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Petter Törnberg @pettertornberg.com · 22/04/2026
For many more fun insights - including shifts in gender, race and age composition, and much more - check out the full paper in JDQ:DM! Open Access! journalqd.org/article/view...
journalqd.org
Shifts in U.S. Social Media Use, 2020–2024: Decline, Fragmentation, and Enduring Polarization | Journal of Quantitative Description: Digital Media
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Jasper Tjaden @jaspertjaden.bsky.social · 18/05/2026
We tried estimating the number of irregular #migrants using #Facebook #Meta surveys. Results are....well...very mixed. Paper out now in Sociological Methods & Research: journals.sagepub.com/doi/abs/10.1...
journals.sagepub.com
Eliciting Legal Status Through Social Media Surveys Among Immigrants—Evidence from a List Experiment, Direct Question and Stepwise Exclusion - Jasper Tjaden, Alejandra Rodríguez-Sánchez, Jennifer Van ...
Estimating the size of the undocumented migrant population remains a critical challenge for researchers and policymakers. This study assesses the viability of u...
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Dean Yang @deanyang.bsky.social · 01/04/2026
"Abundance from Abroad: Migrant Income and Long-Run Economic Development" American Economic Review, April 2026 With @econgaurav.bsky.social (Gaurav Khanna), Emir Murathanoglu, and Caroline Theoharides doi.org/10.1257/aer....
doi.org
Abundance from Abroad: Migrant Income and Long-Run Economic Development
(April 2026) - We study how international migrant income prospects affect long-run development in origin areas. We leverage the 1997 Asian Financial Crisis exchange rate shocks in a shift-share identi...
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Dean Yang @deanyang.bsky.social · 01/04/2026
New in the American Economic Review: migration doesn't hollow out the home economy — it builds it up. More than 75% of the long-run income gains from migration are domestic. The home economy itself grows. Here's what we found: 🧵
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Weizenbaum-Institut @weizenbauminstitut.bsky.social · 01/04/2026
Mit dem Kauf von Elon Musk und der Umbenennung in X änderte sich Twitter grundlegend. Diese Umgestaltung hat ein internationales Forschungsteam rund um Clara Keller (Weizenbaum-Institut und WZB) mit der Auswertung von mehr als 1.500 Einzelereignissen untersucht. Mehr bei mdr Wissen: buff.ly/f0AaUK1
mdr.de
Der Große Systemadministrator: Wie Elon Musk Twitter zu X umbaute | MDR.DE
Mit der Übernahme des Kurznachrichtendienstes Twitter durch Elon Musk wurde die Plattform umgebaut. Forschende haben den Prozess untersucht und gezeigt, wie der Milliardär ihn für seine politische…
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Rense Corten 🟥 @rensec.bsky.social · 12/02/2026
📢WORK! At the Sociology department of @utrechtuniversity.bsky.social we are hiring a postdoc who will work on applications of AI in sociological research. Join our vibrant-yet-cohesive research community doing cutting-edge research. Please share or apply! www.uu.nl/en/organisat...
uu.nl
Postdoctoral researcher on applications of AI in sociological research
Are you able to lead sociological research into the AI age?
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Jess Rohmann @jlrohmann.bsky.social · 15/02/2026
CAUSAL GRAPHS ➡️ HAPPINESS. 😍 Agree? & Work in/around Berlin? 🐻 Sign up for the 2026 Applied Causal Graphs Workshop! 🌟 Deadline Feb 28th ⬇️ applied-causal-graphs.de This 3rd edition is hosted by the great folks at Uni Potsdam 💡
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Jasper Tjaden @jaspertjaden.bsky.social · 09/02/2026
Looking for RAs based in Berlin/Brandenburg. Please share! 🙏
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Johannes Breuer @johannesbreuer.com · 09/01/2026
Postdoc position in CSS/Sociology at @unidue.bsky.social: www.uni-due.de/karriere/ste... EG 13 TV-L for three years Please apply before Feb 5th 2026 Research cluster Anja Weiß, Institute for Sociology, University of Duisburg-Essen #computationalsocialscience
uni-due.de
Stellenausschreibung
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Laura Peitz @lauraptz.bsky.social · 17/12/2025
📣New OPEN ACCESS article: What are the pathways taken by rejected asylum seekers to resolve their irregular(ized) status? And how do these trajectories unfold over time? 📈Answers based on longitudinal administrative data can be found here: doi.org/10.1002/psp.... #irregularmigration
doi.org
Return or Regularization? A Temporal Analysis of Rejected Asylum Seekers in Germany
This study examines the temporal dynamics and policy influences on pathways out of irregular(ized) status among rejected asylum seekers in Germany through the lens of temporal liminality, a concept h...
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Übermedien @uebermedien.de · 17/12/2025
Eine Potsdamer Studie zu wirtschaftlichen Folgen des Klimawandels sorgte weltweit für Aufsehen, nun wurde sie zurückgezogen. Einen überzeugenden Weg, damit umzugehen, finden die meisten Medien nicht, schreibt @martinruecker.bsky.social. Jetzt ohne Paywall: uebermedien.de/111884/studi...
uebermedien.de
Klimastudie: Zurückgezogen, aber in Medien nicht totzukriegen
Eine Potsdamer Klimastudie sorgte weltweit für Aufsehen, nun wurde sie zurückgezogen. Aber nicht alle Medien korrigieren ihre Artikel dazu.
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Sandra González-Bailón @sgonzalezbailon.bsky.social · 11/12/2024
New publication (4+ years in the making): “The Diffusion and Reach of (Mis)Information on Facebook”. shorturl.at/VE2fU We analyze the propagation of 1B+ posts across content moderation regimes, with @davidlazer.bsky.social @jatucker.bsky.social @taliastroud.bsky.social @annenbergpenn.bsky.social
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Florian Foos @florianfoos.bsky.social · 24/11/2025
We have a new tenure-track job in @lsegovernment.bsky.social at AP level (empirical political science, open subfield): jobs.lse.ac.uk/Vacancies/W/... Please apply and share with colleagues who might be interested!
jobs.lse.ac.uk
Assistant Professor in Political Science
Assistant Professor in Political Science, , <p style="text-align: center;"><em><span>LSE is committed to building a diverse, equitable and truly inclusive university</span></em></p> <p style="text-ali...
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Aliakbar Akbaritabar @akbaritabar.bsky.social · 27/11/2025
The call for applications for the Summer Incubator 2026 at the @mpidr.bsky.social is open! Deadline: Jan 14, 2026. Topics/Teams: 1) Spatial Mobility and Scientific Production 2) Digitalization, AI and Inequalities Check out the brand new website for information: www.incubator.demogr.mpg.de
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Joël Machado @joelmachado.eu · 24/11/2025
‪ With @jeromevalette.bsky.social & Jesús Fernández-Huertas Moraga, we are happy to announce the CfPapers for the 4th edition of the Junior Workshop on the Economics of Migration on May 26-27, 2026 @uc3meconomics.bsky.social, Spain. Submit until February 1, 2026 on economig2026.sciencesconf.org
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Niklas Harder @niklas-harder.bsky.social · 19/11/2025
I’m very happy to see our paper published in Political Geography. We show that your country of residence influences your waiting time for an appointment at a German diplomatic mission. These differences are substantial and far from random.
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DeZIM-Institut @dezim-institut.de · 19/11/2025
Langes Warten oder kein Termin – Globaler Süden wird im dt. #Visasystem deutlich benachteiligt. Das zeigt die Analyse von @deutschmann.bsky.social, @eui-eu.bsky.social, @niklas-harder.bsky.social & @alexandra-orlova.bsky.social @politicalgeography.bsky.social www.sciencedirect.com/science/arti...
Zitat von Dr. Niklas Harder:
Wartezeiten auf Termine an deutschen Auslandsvertretungen sind die erste Hürde auf dem Weg nach Deutschland. Unsere Untersuchung zeigt, dass das Herkunftsland entscheidet, wie hoch diese Hürde ist. 

Gute Migrationspolitik braucht Transparenz und gleiche Chancen für alle motivierten Einwanderer*innen, egal aus welchem Land. Hier bietet sich eine öffentlich zugängliche Plattform mit den aktuellen Wartezeiten an, etwa als Teil des Auslandsportals des Auswärtigen Amtes. Transparenz ist auch die Grundlage dafür, die Frage zu diskutieren, wie die unterschiedlichen Wartezeiten entstehen.
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Joshua Mask @joshuafmask.bsky.social · 19/11/2025
blog.google/outreach-ini...
blog.google
We’re introducing Google Scholar Labs to answer your research questions
Today, we are introducing Google Scholar Labs, a new feature that explores how generative AI can transform the process of answering detailed scholarly research questions…
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Steffen Pötzschke @stpoetzschke.bsky.social · 04/11/2025
Don't miss out on Anna Hebel's webinar presentation: The Role of Ad Design: Image Characteristics and Design Formats in Social Media Recruitment is about to start on MS Teams: events.teams.microsoft.com/event/145a60... #SurveyMethodology Learn more about Anna's research: doi.org/10.31219/osf...
doi.org
OSF
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Valentina Di Stasio @distasioval.bsky.social · 27/10/2025
Postdoc opening. Background in IR/PolSci, quantitative skills. Great supervisors.
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Christian Rauh @chrauh.bsky.social · 22/10/2025
@ckreudersonnen.bsky.social and I are happy to announce two open research positions in our joint DFG-funded project VARICRIS (👉 bit.ly/varicris). We are recruiting a #PostDoc and a #PhD candidate 🧵: #PoliSky #PoliSkyJobs #polsci 🌐
bit.ly
Welcome! – VARICRIS
VARICRIS research project
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Claes de Vreese @claesdevreese.bsky.social · 19/10/2025
Work!! 🚨 We are looking for a #postdoc in our AI, media and Democracy Lab @aimediademlab.bsky.social Dynamic position, great team, nice colleagues 💥 Profile: communication/ poli sci/ computational social sci 🗓️ DL November 1 Spread the word 📣 werkenbij.uva.nl/en/vacancies...
werkenbij.uva.nl
Vacancy — Postdoctoral researcher Communication Science at AI, Media & Democracy Lab
Do you want to be part of the AI, Media & Democracy Lab? We are looking for a postdoctoral researcher with a profile in communication science.
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Jasper Tjaden @jaspertjaden.bsky.social · 15/10/2025
Toller Artikel @zeitonline.bsky.social und sehr kompatibel mit unseren Analysen zu #TikTok #AFD und den #BTW25.
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Alexander Kustov @akoustov.bsky.social · 13/10/2025
Migration needs more common ground!? Glad to join Konrad's excellent "Migration Debates" on the importance of compromise with Marc Helbling and Oliviero Angeli. The interviews are available in English (and German) here: www.kas.de/en/web/analy...
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Jasper Tjaden @jaspertjaden.bsky.social · 13/10/2025
Looking for studies that show memership composition in terms of "political idealogy/ party preferences" of large social media platforms. Any hints? @mikecowburn.bsky.social @pettertornberg.com @ulrikeklinger.bsky.social @hendrikmeyer.bsky.social @weizenbauminstitut.bsky.social @ingmarweber.de
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Jeyhun Alizade @jeyalizade.bsky.social · 30/09/2025
Glad to see this out at @ajpseditor.bsky.social! I show that the immigration-crime issue, when salient, can shift leftist cosmopolitans to the Right. This is due to leftist voters being more conservative on crime than leftist parties. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
American Journal of Political Science | MPSA Journal | Wiley Online Library
Concern that immigration worsens crime problems is prevalent across Western publics. How does it shape electoral politics? Prior research asserted a growing left–right divide in immigration attitudes...
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Sandra Morgenstern @snmorgenstern.bsky.social · 30/09/2025
www.sciencedirect.com/science/arti...
sciencedirect.com
Credibility and/or anxiety - The moderators of political information on migration
In the policy of migration information campaigns Western governments aim to influence perceptions on irregular migration in potential sending countrie…
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Jasper Tjaden @jaspertjaden.bsky.social · 24/09/2025
Great time back at my alma mater @freieuniversitaet.bsky.social presenting our (@unipotsdam.bsky.social) research on exposure to political content on #tiktok at AK-Wahlen. In a nutshell, we find....
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Petter Törnberg @pettertornberg.com · 16/09/2025
Here’s the partisan lean of platform audiences, 2020 → 2024. 📊 Instagram, TikTok, Reddit stay solidly Dem. 📊 Facebook & YouTube: modestly rightward. 📊 Twitter/X: sharpest move right. 📊 “Other” (Threads, Bluesky, etc.): flipped hard from red to blue. The sorting is unmistakable.
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Ryan Estrada @ryanestrada.com · 06/09/2025
Just a reminder to check for your name in this list of books that OpenAI trained from. If your name is there, they probably owe you several thousand dollars. OpenAI cried that if everyone eligible author files, the company will go bankrupt, so I'm alerting every author I have ever spoken to.
theatlantic.com
Search LibGen, the Pirated-Books Database That Meta Used to Train AI
Millions of books and scientific papers are captured in the collection’s current iteration.
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Jasper Tjaden @jaspertjaden.bsky.social · 15/08/2025
Excited to present our paper on exposure to right-wing political content on #TikTok at @wzb.bsky.social conference "The future of democracy on 8-10 October.
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GESIS - Leibniz-Institut für Sozialwissenschaften @gesis.org · 17/07/2025
#jobs #stellenangebote #GESISjobs #jobfairy Job Opening! We're seeking a Postdoc in Computational Social Science to join our team at GESIS! Apply now: www.gesis.org/en/ins...
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Katrin Weller @kwelle.bsky.social · 17/07/2025
*JOB* join the amazing Computational Social Science group at GESIS. Postdoc position with tenure option in Köln / Cologne.
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Tina Hinz @tinahinz.bsky.social · 17/07/2025
Call for Paper #migrationresearch Das @bamf.de Forschungszentrum feiert 20-jähriges Jubiläum und veranstaltet dazu eine internationale Konferenz am 3. und 4. Februar 2026 in Nürnberg! Einreichungen sind bis 31.8.2025 gern gesehen! www.bamf.de/SharedDocs/M...
bamf.de
Fachkonferenz zu 20 Jahre BAMF-Forschungszentrum
Das BAMF-Forschungszentrum feiert sein 20-jähriges Jubiläum und lädt zu einer internationalen, wissenschaftlichen Fachkonferenz am 3. und 4. Februar 2026 in Nürnberg ein. Diskutiert werden aktuelle Fr...
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Heike Klüver @heikekluever.bsky.social · 09/07/2025
📣 Call for Applications 📣 3-year Postdoc position in Berlin 🚀 Join our Comparative Political Behavior Group at @humboldtuni.bsky.social & the @humboldt-govlab.bsky.social Great people, great projects, great city – come work with us! 🗓️ Deadline: 31 July 2025
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James Dennison @jamesrdennison.bsky.social · 05/07/2025
Important new paper for migration scholars: Are Estimates of Irregular Migration Intentions Biased? Evidence from a Double List Experiment in Ethiopia journals.sagepub.com/doi/full/10....
journals.sagepub.com
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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Methods in Migration Research (Meth@Mig - IMISCOE) @methatmig.bsky.social · 01/07/2025
Day 1 of #IMISCOE2025 is here! Of course, the conference features many methods-oriented sessions, some organized directly by our SC, others proposed by fantastic colleagues. We are looking forward to all of them. Here is what we have in store for you today. Enjoy! #IMISCOE
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CUNY Graduate Center @thegraduatecenter.bsky.social · 12/06/2025
The Graduate Center community deeply mourns the passing of Prof. Emeritus Richard Alba, a pathbreaking demographer who bucked conventional ideas about how immigrants assimilate into and impact mainstream U.S. culture www.gc.cuny.edu/news/memoria...
gc.cuny.edu
In Memoriam: Professor Emeritus Richard Alba
An eminent demographer and sociologist, he challenged conventional thinking on how immigrants integrate into U.S. society.
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Oliver Winkler @oliverwinkler.bsky.social · 06/11/2024
🚨CfA: “Embracing Diversity: Inclusion in Education and Society“. Until 15 November, you can submit an abstract to the international spring meeting of the research section sociology of education of the @dgsoziologie.bsky.social & Swiss Sociological Assoc. events.unifr.ch/embrace2025/...
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Alexander Kustov @akoustov.bsky.social · 09/06/2025
Our new IMR paper on the great replacement theory is now open-access. We find that about 20% (!) of German adults believe that white majorities are being deliberately replaced by non-white immigrants in a secretive attempt by malevolent elites to undermine their own country. doi.org/10.1177/0197...
journals.sagepub.com
Public Belief in the “Great Replacement Theory” - James Dennison, Alexander Kustov, 2025
The “Great Replacement Theory” (GRT) is an extremist narrative that has gained increased prominence within anti-immigration and conspiratorial discourses in Wes...
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Tina Hinz @tinahinz.bsky.social · 11/06/2025
📣 Kommt digital vorbei und schaut, welche Daten für die #Forschung bei uns auf euch warten!
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Jasper Tjaden @jaspertjaden.bsky.social · 11/06/2025
Anyone going to the International Forum for Migration Statistiscs in malmö? #ifms25 @oecd-ocde.bsky.social @iom.int. Will Chair a panel on estimating irregular migration on Wednesday.
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John Holbein @johnholbein1.bsky.social · 10/06/2025
What happened when the U.S. forcibly sent 400,000 Mexican workers back to Mexico in the 1930s? The employment rate of native workers *went down* noticeably as a direct result. (You read that correctly) Why? Forced repatriation destroyed low-skill markets. www.sciencedirect.com/science/arti...
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Jakob Ohme @dscheykopp.bsky.social · 05/06/2025
Is the TikToK Algorithm biased in election contexts? A data donation study presented at #WIConf2025 by Felix Gaisbauer @weizenbauminstitut.bsky.social shows no immediate biases in algorithmic supply and user demand in political For You page content around 2025 German Federal Election #workinprogress
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Universität Potsdam @unipotsdam.bsky.social · 02/06/2025
Das Land Brandenburg, die Uni Potsdam und die @plattnerfoundation.org haben heute einen #LetterOfIntent unterzeichnet. Die Uni bekommt einen weiteren Campus auf dem Gelände des ehemaligen Landtags am #Brauhausberg. Das @hpi.bsky.social in #Griebnitzsee wird erheblich erweitert. #WissenSchafftZukunft
Das Bild zeigt von links nach rechts: den Ministerpräsidenten des Landes Brandenburg, Dr. Dietmar Woidke, den HPI-Gründer Hasso Plattner, die Ministerin für Wissenschaft Forschung und Kultur des Landes Brandenburg, Dr. Manja Schüle, und den Präsidenten der Universität Potsdam, Prof. Oliver Günther, Ph.D. Das Foto machte Kevin Ryl.Das Bild zeigt HPI-Gründer Hasso Plattner (links) und den Präsidenten der Universität Potsdam Prof. Oliver Günther, Ph.D. (rechts) mit einem Entwurf des neuen Uni-Campus auf dem Brauhausberg. Das Foto machte Kevin Ryl.
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DeZIM-Institut @dezim-institut.de · 26/05/2025
📣 Erweiterte Längsschnittdaten zu #Integration, #Migration und #Rassismus veröffentlicht! Der anonymisierter DeZIM.panel-Datensatz (Version 5) im Stata-Format ermöglicht es, kurz- & langfristige Trends und Veränderungen in der dt. Bevölkerung zu analysieren. Hier Daten beantragen ⬇️ #Forschung
dezim-institut.de
Release des DeZIM.panel-Datensatzes (Version 5): Erweiterte Längsschnittdaten für die Migrations- und Integrationsforschung
Der Datensatz des DeZIM.panels enthält Antworten aus der Rekrutierungswelle 2021, der Erweiterungsstichprobe 2023, zwölf regulären Befragungswellen sowie zwei Schnellbefragungen.
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