Hannes Ullrich
Economist at DIW Berlin, University of Copenhagen, and Berlin School of Economics
Research on Digitilization, Health Care, and Industrial Organization
https://www.hannesullrich.com
- Reposted by Hannes Ullrich🚨 Coming up at #VIDEseminar: David Reiley (University of California, Berkeley) “Long or Short? Personalizing Ad Length and Frequency” 🔜 Wed, February 4, 11am New York, 5pm Berlin. Open to anyone! Further information: www.digitalecon.org/seminar
- Reposted by Hannes UllrichThe Spring 2026 VIDE seminar schedule is up! Further information and mailing list sign-up at: www.digitalecon.org
- Reposted by Hannes UllrichThoughts from a newbie using Claude Code for the first time. I don’t always use GitHub for my projects, but with Claude Code it feels like a must. Having a tool read and write files without version control is just too scary.
- Reposted by Hannes UllrichEmpfehlungen der #Sozialstaatskommission : Endlich ein Reformentwurf, der ehrgeizig die Probleme angehen will. Bleibt zu hoffen, dass die Umsetzung gelingt!
- Reposted by Hannes UllrichAuschwitz was at the end of a process. We must remember that it did not start from gas chambers. This hatred gradually developed: from ideas, words, stereotypes & prejudice through legal exclusion, dehumanization & escalating violence... to systematic and industrial murder. Auschwitz took time.
- Reposted by Hannes UllrichGermany increased its research and innovation spending by 4.9% in 2024, exceeding inflation (3.1%). The strongest growth came from services, highlighting the ongoing structural transformation of the German economy.
- Die Innovationsausgaben der deutschen Wirtschaft sind im Jahr 2024 auf 213,3 Milliarden Euro gestiegen. Das entspricht einem Plus von 4,9 Prozent. Die Innovationsplanung für die kommenden Jahre bleibt auf einem konstanten Niveau. Mehr erfahren 👇 zew.de/PM10327/?twt=1
- Reposted by Hannes Ullrich#econsky et al. I am happy to announce the #call_for_papers for the 2026 Economics of Mental Health Workshop! The workshop is hosted by @peibich.bsky.social at Paris Dauphine and takes place from June 22-23. They keynotes are @jcmecon.bsky.social & Marco Bertoni. 1/n
- Reposted by Hannes UllrichA spark of action from the European Commission on social media recommender algorithms at long last ec.europa.eu/commission/p...
- Reposted by Hannes UllrichDespite the focus on small boats, most refugees stay in poor countries. I went to Sudan, where nearly 1/3 of the population has left their homes, to see how the UN is coping with Trump's cuts and the west's retreat. Sudan is a brutal, forgotten war. Please do read: as.ft.com/r/7db76b9a-8...
- Reposted by Hannes UllrichMany discussions about 🇪🇺 tech sovereignty. 👇🏻 A fascinating aspect, sometimes overlooked, is the public's behavioral reaction to MAGA: e.g., how many people and institutions will drop PayPal and use Wero? (A coordination problem where every user attracts others.) werotracker.eu
- Reposted by Hannes UllrichWe are looking forward to the second edition of the @diw.de - @oecd-ocde.bsky.social Industrial Strategy Dialogue on upcoming Monday, January 26 at 11:30 AM – join us in person at DIW Berlin or follow the event via livestream! 📝Registration & livestream: www.diw.de/en/diw_01.c....
- Reposted by Hannes UllrichJoin us in person or virtually for the second @diw.de - @oecd-ocde.bsky.social Industrial Strategy Dialogue on Monday, Jan 26 (11:30-13:00) in Berlin: "Industrial Policies and Market Dynamism – what role for competition policy in industrial strategies?" 🔗 www.diw.de/de/diw_01.c....
- Reposted by Hannes Ullrich📣 Call for Papers Join us for the 2nd Berlin PhD Conference in Economics on July 6-8, 2026. 🗓 July 6-8, 2026 ⏰ Application deadline: 25 January 2026 🔗 Learn more & apply: berlinschoolofeconomics.de/event-detail... @wzb.bsky.social @hertieschool.bsky.social #phdconference
- Reposted by Hannes Ullrich🏔️ We’re hiring: Data Steward & Research Software Officer Support our active research community in 🔹 Developing and maintaining research data infrastructure 🔹 Developing cutting-edge statistical software 🔹 Being at the forefront of conducting reproducible research econjobmarket.org/positions/12...
- Reposted by Hannes UllrichOf the big four 🇺🇸 🇪🇺 🇷🇺 🇨🇳, three are ruled by people who want to increase their empires by force. Do they even notice that the fourth, 🇪🇺, is the only one that is actually growing? Interesting discussion of Greenland in this thread and article.👇🏼
- Reposted by Hannes UllrichThere's A LOT going on right now in struggle b/w democracy & authoritarianism, so it's hard to keep up. But it's going to be REALLY important that we pay attention to (and keep pushing back against) how election lies (from 2020) are being mobilized in ways that threaten election integrity in 2026.
- Reposted by Hannes UllrichI have a new paper w Andrea Prat & Jake Spitz. We show that Republican appointed Supreme Court Justices vote in favor of the richer party by over 70% today, as compared to D’s at 30%. In the 1950s and both were at 50%. This strong trend may contribute to rising inequality. www.nber.org/papers/w34643
- Reposted by Hannes UllrichThe celebration and digital metastasization of conspiratorial thinking culminating with the U.S. head of health and human services believing that and governing as if modern diseases don’t emerge naturally, pandemics are all manmade, and science (not the complexities of nature) is to blame.
- Reposted by Hannes Ullrich"It is going to get so much worse." For the first of two end-of-the-year episodes of @pandemia.bsky.social, I talked to @drdemetre.bsky.social about what happened in 2025 at the CDC and how he thinks about the future of vaccines and public health in the US. A quick 🧪🧵
- Reposted by Hannes UllrichPretty cool year in review by @cloudflare.social radar.cloudflare.com/year-in-revi... Some interesting facts: - Snapchat and LinkedIn now outperforming X - Perplexity saw more traffic than Gemini in 2025 ...
- Reposted by Hannes UllrichÜbrigens kann man hier auch den Stellenwert des EU Parlaments in der Bevölkerung ablesen. Eigentlich ist das EU Parlament an vielen Stellen wesentlich wirkmächtiger, aber der große diskursive Aufschrei, wie er erfolgte als Merz im Bundestag mit der AfD paktierte, bleibt hier weitgehend aus.
- Reposted by Hannes UllrichWhen I was a medical student 45 years ago, I clerked in a 13 year old girl with deep jaundice and an abdominal mass. She was Hepatitis B positive. That had led to a primary liver tumour. In a 13-year-old. She was dead within the month. Avoidable with vaccination.
- The CDC has endorsed ACIP’s decision of revoking universal access in USA to hepatitis B vaccines at birth. The policy had been in place for 34y and was changed despite no new evidence emerging of any risk of vaccination. #HealthPolicy 🧵
- Reposted by Hannes Ullrich
- Reposted by Hannes UllrichMuch of the decline of #manufacturing employment at the industry level in #Germany reflects a shift of manufacturing tasks into service sector firms rather than a disappearance of manufacturing work. Dominik Boddin & Thilo Kroeger cepr.org/voxeu/column... #EconSky
- Reposted by Hannes UllrichGesundheit, Kriminalität & Bildung - in diesen und vielen anderen Bereichen fehlen in Deutschland Forschungsdaten. @hannesullrich.com, @annabindler.bsky.social & @jaschadraeger.bsky.social berichten, wie sie von ausländischer Forschungsdateninfrastruktur profitiert haben. www.diw.de/de/diw_01.c....
- Reposted by Hannes UllrichWe are deeply saddened by the passing of Kate Ho, the John L. Weinberg Professor at Princeton and a Fellow of the Econometric Society. Kate was a brilliant IO economist and scholar whose impact on the profession will resonate for many years to come www.econometricsociety.org/publications...
- Reposted by Hannes UllrichMy second post about researchers’ rights to scrape data under DSA Article 40.12 is up! This is dense with legal arguments for researchers to use if they get sued. Or to show their lawyers before that. www.techpolicy.press/how-the-mean... verfassungsblog.de/dsa-fine-x-r...
- Reposted by Hannes UllrichSo happy this paper is now accepted!
- Reposted by Hannes Ullrich📣Europeans are speaking loud and clear! EU citizens see strong benefits from EU membership, and call for a stronger and more assertive EU with reinforced economic independence and a common defence and security policy. Read more ↓ link.europa.eu/D8krNJ
- Reposted by Hannes UllrichMeta shuts down global accounts linked to abortion advice and queer content www.theguardian.com/global-devel...
- Very sad news. I have been a big fan of her work and remember meeting her as truly kind and interested in others' work.
- Reposted by Hannes UllrichDays after FIFA awarded Trump a fake peace prize, DOJ moves to drop charges in FIFA corruption case www.nytimes.com/2025/12/10/n...
- Reposted by Hannes Ullrichre-sharing my EU Starter pack in case EU institutions finally decide to quit Elon's hell hole for good. go.bsky.app/sy6gCfat://did:plc:gm6knfxyffpc46qldg6y6enb/app.bsky.graph.starterpack/3lcayshytdk22
- Reposted by Hannes UllrichYes. for a while I kept being on X bc many people are still there and bluesky did not really pick up. But I closed X account now. IMHO 1 People should leave X for good. Not salvageable 2 Bluesky should be bought and scaled up to properly compete. 3 Now we still have LinkedIn #EconSky #EconTwitter
- from @gaborbekes.bsky.social 's linkedin page. a rare show of unity amongst world experts on good governance 🤷🏻♂️
- Reposted by Hannes UllrichWe have opened an investigation into potential anti-competitive conduct by Google. The investigation will assess whether Google has breached EU competition rules by using web publishers’ content for artificial intelligence purposes. Read more ↓ link.europa.eu/RpvRRH
- Reposted by Hannes UllrichFrom the @wsj.com chief foreign correspondent
- Reposted by Hannes UllrichBrexit should have been a lesson. It's a misunderstanding of sovereignty. Individual countries that are not China or the US have to follow the rules set by major powers as they have no bargaining power. Only together European countries are strong.
- Reposted by Hannes Ullrich🚨 Coming up at #VIDEseminar: Jeff Prince (Kelley School, Indiana University) “How Have Smartphones Changed the Structure of Online Content Consumption?” 🔜 Wed, December 3, 11am New York, 5pm Berlin. Open to anyone! Further information: www.digitalecon.org/seminar
- Reposted by Hannes UllrichLate addition to the market: We are hiring a 2-year postdoctoral researcher in Behavioral, Experimental, or Applied Microeconomics for our Berlin campus to work with our incoming Professor Kai Barron. #Econjobmarket econjobmarket.org/positions/12...
- Reposted by Hannes UllrichExciting news! The paper submission portal is now open! Join us April 10-12 in Boston for the 24th annual IIOC. We have lots of great things already lined up. www.indorgsociety.org/news/iioc-20...
- Reposted by Hannes Ullrichwww.uni-hamburg.de/stellenangeb... Unser Fachbereich hat eine unbefristete Stelle E13 in der VWL-Lehre zu besetzen. Gerne retweeten und bis 30.11. bewerben.
- Reposted by Hannes UllrichMeet Clara Schäper - a talented job market candidate at @diw.de and the @bsoeberlin.bsky.social. Clara is an applied microeconomist working on topics at the intersection of the economics of crime, labor, gender, and family economics. @schaeper-clara.bsky.social #econjobmarket #EconJMP #DIWBerlin
- Reposted by Hannes UllrichWer Kriminalität verstehen will, muss tiefer blicken – so wie DIW-Forscherin @annabindler.bsky.social und ihr Team. Im Interview erklärt die Ökonomin, wie ihre Forschung dazu beiträgt, den Fokus auf systematische Zusammenhänge zu richten & neue Perspektiven zu öffnen. www.diw.de/de/diw_01.c....
- Reposted by Hannes Ullrich🚨'The worst environmental setback in Brazil's history.' Just a week after COP30 ends, it looks almost certain that Brazil's agribusiness dominated Congress will strip almost all oversight of damaging projects. My report from Brasília. www.politico.eu/article/braz...
- Reposted by Hannes UllrichYann LeCun is leaving Meta He says he’s disillusioned with LLMs as a path to AGI and he’s starting a company focused on world models For as obnoxious as Yann can be, I’m honestly rooting for him. I’d love to see what his JEPA can do, unconstrained by Meta gizmodo.com/yann-lecun-w...
- Reposted by Hannes Ullrich📢 Submissions to the IJIO Special issue in Memory of Dr. Patrick Bajari close on November 30 ℹ️https://earie.org/ijio-special-issue-in-memory-of-dr-patrick-bajari/
- Reposted by Hannes UllrichNew NBER research finds that in NYC alone, Uber and Lyft collect $300M annually by making it hard to comparison shop before booking a ride. www.nber.org/papers/w34441
- Reposted by Hannes Ullrich🚨Very Strong Job Market Candidates #EconSky The Berlin School of Economics is a unique cooperation of 9 institutions - together we do research and train PhDs/Postdocs. This year: fantastic people in applied micro, behavioral/experimental, and macro. 👇🏻 berlinschoolofeconomics.de/job-market/j...
- Reposted by Hannes UllrichOn net I like Bluesky, but the shift really lost grad students (far fewer active here vs. during peak EconTwitter). With job market season, it’s been kinda nice seeing familiar faces who were in the Covid grad school trenches w me popping up again recently Like hey there! I remember you! Cool paper
- Reposted by Hannes Ullrich“One of the first public displays of the double helix, at the Royal Society Conversazione in June 1953, was signed by the authors of all three Nature papers1–3,21. In this, the discovery of the structure of DNA was not seen as a race won by Watson and Crick, but as the outcome of a joint effort.”
- Reposted by Hannes UllrichFolks, this is a hot deal. Try out refine.ink and you (and I) get a free review if you use the referral code refine.ink?ref=am9zaHVh... I'm telling you, it is worth it. You'll save at minimum one round of journal submissions.
