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Jasper Tjaden

@jaspertjaden.bsky.social

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

55 Posts1692 Follower312 Folgt
Weizenbaum-Institut@weizenbauminstitut.bsky.social · 3mo ago

🔍 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...

Your Feed, Your Choice

Your Feed, Your Choice

dein-feed-deine-wahl.de

Stephan Lewandowsky@lewan.uk · 2mo ago

🧵 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

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.

doi.org

Jasper Tjaden@jaspertjaden.bsky.social · 3mo ago

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...

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...

journals.sagepub.com

Dean Yang@deanyang.bsky.social · 4mo ago

"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....

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...

doi.org

Dean Yang@deanyang.bsky.social · 4mo ago

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: 🧵

Weizenbaum-Institut@weizenbauminstitut.bsky.social · 4mo ago

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

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…

mdr.de

Laura Peitz@lauraptz.bsky.social · 8mo ago

📣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

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...

doi.org

Übermedien@uebermedien.de · 8mo ago

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...

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.

uebermedien.de

Florian Foos@florianfoos.bsky.social · 8mo ago

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!

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...

jobs.lse.ac.uk

Niklas Harder@niklas-harder.bsky.social · 9mo ago

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.

Emanuel Deutschmann@deutschmann.bsky.social · 9mo ago

New #openaccess study We made >16,000 visa appointment requests at German embassies and consulates worldwide Key finding: The poorer the country, the longer the wait time and the lower the chance to get an appointment. "A time panelty for the Global South?" shorturl.at/ZiAFb

Visas are a key tool for states to regulate incoming mobility from abroad, which can have ramifications for the establishment and perpetuation of global inequalities. In this article, we systematically analyze visa appointment wait times in German embassies and consulates worldwide. Using computational methods, we collect—and publish—fine-grained longitudinal data on the closest available appointment dates for various visa types, covering a total of 16,182 visa appointment requests. Our analysis reveals strong and systematic variance: the poorer the country a diplomatic mission is based in, the longer the wait time and the lower the chances of finding an available appointment (which ranges from almost 0 to 100 percent). We also argue that Germany’s system is quite opaque compared to other established immigration countries such as the U.S. These core findings raise important questions in light of current debates about global justice, legal pathways to migration, and efforts to attract foreign talent.
Steffen Pötzschke@stpoetzschke.bsky.social · 9mo ago

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...

OSF

doi.org

GESIS Panel@gesis-panel.bsky.social · 9mo ago

Join the Autumn 2025 webinar series “Using Social Media as a Research Tool” on November 4, 3:00 PM (UTC +0) for an exciting presentation by Anna Hebel on "The Role of Ad Design: Image Characteristics and Design Formats in Social Media Recruitment"! Register here: uofglasgow.zoom.us/webinar/regi...

Claes de Vreese@claesdevreese.bsky.social · 10mo ago

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...

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.

werkenbij.uva.nl

Jeyhun Alizade@jeyalizade.bsky.social · 10mo ago

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/...

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...

onlinelibrary.wiley.com