iiinova — where your digital self keeps evolving

Felix @wortmanncallejon.de · 28/09/2026

Social science is hard, folks

Reposted by Felix

Victor Loxen @victorloxen.bsky.social · 25/09/2026

Ich habe zum Postliberalismus einen long-read für die ZEIT geschrieben. Hier meine Einleitung dazu, unten der Geschenk-Link

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Felix @wortmanncallejon.de · 22/09/2026

Claude-Exercise am Samstag Morgen, zeigt, dass das einfach die Realität des Regierens in der Bundesrepublik ist.

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Felix @wortmanncallejon.de · 22/09/2026

Weißt Infratest Nichtwähler:innen und Wähler:innen die zum ersten Mal wahlberechtigt sind getrennt aus? Da die Linke 50% aller Wähler:innen unter 35 für sich hat gewinnen können, in einem Wahljahr in dem 5.5 Jahrgänge zum ersten Mal wählen durften, erscheint mir das sehr relevant.

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Markus Kollberg @markuskollberg.bsky.social · 22/09/2026

Do you want to understand whether investments in public services can make democracies more resilient? Come and do your PhD with @heikekluever.bsky.social and me! We offer great conditions, a supportive team, and lots of room to develop your own ideas. Any questions? Please, do reach out!

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Felix @wortmanncallejon.de · 07/07/2026

Weiterhin bereue ich nach wie vor am meisten, dass ich mein Bachelor nicht um ein Jahr verlängert habe, um etwas Philosophie und Mathematik zu studieren.

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Felix @wortmanncallejon.de · 01/06/2026

After completing my first year at Princeton, I am visiting @dynamics.bsky.social for the summer. Let's grab a coffee if you're in town. I'm in Berlin until the end of August.

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Vincent Heddesheimer @vheddesheimer.bsky.social · 03/04/2026

🚨 Just shipped a major update to GERDA, the German Election Database. - State elections update: new years + mail-in - 3 new election types: Mayoral, County, European - Municipal elections: 1984-2025 - Meinungsbild public opinion - New website & features german-elections.com

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Felix @wortmanncallejon.de · 29/03/2026

Another weekend where my Strava feed is filled with race results from three different half-marathons across Europe. I am getting old…

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Felix @wortmanncallejon.de · 22/03/2026

I never met Leo, but many friends took his classes and worked for him. He must have been an amazing guy. Rest in peace and stay safe 🕊️ www.polsoz.fu-berlin.de/polwiss/fors...

polsoz.fu-berlin.de

Nachruf auf Leo Ahrens

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Felix @wortmanncallejon.de · 12/03/2026

I harassed Julius to do this, so blame me if you don't like this

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Julius Kölzer @juliusk.bsky.social · 11/03/2026

On Sunday, one of Germany’s largest states went to the polls in a closely contested election. What can we learn from the results & how do they relate to looming deindustrialization in one of Germany’s industrial heartlands? A thread with some decriptive patterns from data on 1,101 municipalities. 🧵

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Felix @wortmanncallejon.de · 11/02/2026

What are peoples takes on this discourse? I'd be especially curious to hear the opinions of other early career researchers. causalinf.substack.com/p/claude-cod...

causalinf.substack.com

Claude Code 17: The Zero Profit Condition Is Coming

Substack reasoning about who the new equilibrium

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Felix @wortmanncallejon.de · 11/02/2026

Ich hab vor ein zweieinhalb Jahren mit zwei geschätzten Mitstips beim ehml. BMBF via @fragdenstaat.de Daten zur Soziologie der Begabtenförderung angefragt. Wir freuen uns, dass die SZ nun einen kleinen Artikel darüber geschrieben hat. www.sueddeutsche.de/wirtschaft/s...

sueddeutsche.de

Studieren mit Stipendium: Mehrheit hätte keinen Anspruch auf Bafög

Wer bekommt während seines Studiums Geld über ein Stipendium? Es sind oft diejenigen, die eigentlich schon finanziell gut aufgestellt sind

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Natascha Strobl @nataschastrobl.bsky.social · 08/01/2026

Der Faschismus arbeitet übrigens auch damit, dass seine Gegner glauben er ist übermächtig und unbesiegbar. Glaubt das nicht. Sie sind es nicht.

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Paul Hünermund @p-hunermund.com · 30/12/2025

Picked up a copy of Abundance. Any well-argued critiques from credible voices? I'd like a solid counterpoint to go with it.

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Felix @wortmanncallejon.de · 28/12/2025

Ulf @buermeyer.de scheint der einige Journalist zu sein, der den Unterschied zwischen Korrelation und Kausalität versteht open.spotify.com/episode/3kvI...

open.spotify.com

Jahresrückblick 2025 - Bröckelnde Gewissheiten

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Felix @wortmanncallejon.de · 27/12/2025

Has anyone written about the market for ESG certificates being a market for lemons or is that sort of a trivial observation?

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Felix @wortmanncallejon.de · 19/12/2025

Interesting slate of PE papers out this week in the JEEA: "Tax Professionals and Tax Evasion" Battaglini et al. doi.org/10.1093/jeea... "The Common Good and Voter Polarization" Kendall/Matsusaka doi.org/10.1093/jeea... "The Animal-Welfare Levy" Espinosa/Treich doi.org/10.1093/jeea...

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Felix @wortmanncallejon.de · 16/12/2025

Why is Gatwick such an elite airport?

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Scott Abramson @scottfabramson.bsky.social · 05/12/2025

Start by writing down a mode and then specify the identifying variation needed to recover its parameters. Design your survey, experiment, or empirical strategy to target the substantively meaningful theoretical object. The world is not filled with ATE Pokémon to collect.

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Anna Grzymala-Busse @annagbusse.bsky.social · 05/11/2025

Zohran Mamdani won with 50.4%. Eric Adams won in 2021 with 67%. Bill de Blasio won in 2017 with 66%

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Felix @wortmanncallejon.de · 20/08/2025

The satisfaction of scribbling a little square under a proof that took you way too long to understand makes it all worth it.

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Felix @wortmanncallejon.de · 11/08/2025

Events such as these are what motivates me to pursue an academic career. Thanks to @fabioellger.bsky.social @hannohilbig.bsky.social @wzbdemocracy.bsky.social for hosting us & to all participants for constructive feedback on @antonkoenneke.de & my paper, and the great vibes. C u ➡ summer!

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Felix @wortmanncallejon.de · 16/06/2025

I'll try this again: What is the most important paper in political econ (broadly defined) published in the last two years that I should read?

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Julius Kölzer @juliusk.bsky.social · 12/06/2025

Personal news: I am happy to share that I will be starting a PhD in the joint @dynamics.bsky.social doctoral program of the @humboldtuni.bsky.social and the @hertieschool.bsky.social this autumn in Berlin. I will now briefly thank some people who have supported me over the past few years 🧵.

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Sebastian Ramirez-Ruiz @seramirezruiz.bsky.social · 12/06/2025

📄 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 🧪🧵👇

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Tarik Abou-Chadi @tabouchadi.bsky.social · 12/05/2025

Reminder that earlier naturalization leads to better integration of immigrants. Extending the period necessary for settlement in the UK will have exactly the opposite effect of what Starmer and the Labour leadership claim. "Migrants first have to prove themselves" is a nativist trope and bad policy.

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Felix @wortmanncallejon.de · 12/05/2025

Nice visual of the spatial dynamics of the recent German federal election. Obv not the whole story but this makes it really obvious how the left was so successful.

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Felix @wortmanncallejon.de · 11/05/2025

@jacobedenhofer.bsky.social is the batsignal for sharp thinking on any political issue.

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Felix @wortmanncallejon.de · 11/05/2025

OK, what are the papers I need to read to understand the normative and empirical implications of a potential AfD ban?

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Felix @wortmanncallejon.de · 02/05/2025

🐯 Excited to announce that this summer, I will start my PhD in Political Economy with @princetonpolitics.bsky.social @princetonecon.bsky.social. After a challenging but rewarding year and a half in the private sector, I am looking forward to returning to academia.

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Thiemo Fetzer 🇪🇺🇺🇦 - same handle elsewhere @trfetzer.com · 28/03/2025

In light of this natural disaster, I am happy to share a new paper with @prashantgarg.bsky.social that aims to shed light on a phenomena of patterns in transnational & dyadic media coverage around "events". To me this is the best way to study many geopolitical phenomena these days. What do we do?

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Claudia Landwehr @clandwehr.bsky.social · 28/03/2025

Call for papers! The annual meeting of the @dvpw.bsky.social working group on Analytical Political Theory will take place on Oct 9-10, 2025 in Mainz. This year, we are particularly interested in papers on democratic process preferences! theorie.politik.uni-mainz.de/files/2025/0...

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Felix @wortmanncallejon.de · 26/03/2025

I'll be on vacation next week so I have plenty of time to read. What is the most important paper in political econ (broadly defined) published in the last two years that I should read? Self-promotions welcomed!

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Felix @wortmanncallejon.de · 26/03/2025

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Felix @wortmanncallejon.de · 26/02/2025

Scharfsinnige Analyse zum Erfolg der Linken.

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Felix @wortmanncallejon.de · 24/02/2025

If anyone is keeping tabs, I want someone/people to gift me a FT subscription.

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Felix @wortmanncallejon.de · 24/02/2025

@cendt.de Ist die Grafik hier in Prozent des 2021 Wahlergebnis oder nur in Prozentpunkten? In Bezug auf die Erst- oder die Zweitstimme? Würde mich sehr interessieren, danke!

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Felix @wortmanncallejon.de · 01/02/2025

Is DeepSeek subject to the Chinese room argument?

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Felix @wortmanncallejon.de · 01/02/2025

I have an old #iMac which has stopped getting software updates. I want to extend its life by installing a #Linux distro on it. I care about: 1. it still working as an external monitor 2. being able to connect remotely somehow to run calculations What distros do you recommend?

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Felix @wortmanncallejon.de · 01/02/2025

Another incredibly interesting "Not Another Politics Podcast"-episode, covering and interesting JPE article www.journals.uchicago.edu/doi/abs/10.1... open.spotify.com/episode/0LMZ...

open.spotify.com

Is The "Strong Economy Equals Incumbent Victory" Theory Wrong?

Not Another Politics Podcast · Episode

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