Hannes Ullrich
@hannesullrich.com
5.6K followers 1.3K following 300 posts
Economist at DIW Berlin, University of Copenhagen, and Berlin School of Economics Research on Digitilization, Health Care, and Industrial Organization https://www.hannesullrich.com
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Now published in the December issue of Quantitative Marketing and Economics: link.springer.com/article/10.1...

#QME has a very efficient, no BS editorial policy. Can highly recommend!
Reposted by Hannes Ullrich
Holy wow, +3.5 ppm CO₂ last year, up from +2.4 ppm average the past decade, and +0.6 ppm in the 1960s.

It gets scarier the closer you look at it. All this is a stress test for the planet, and it's buckling.

Two big reasons for the massive increase: wildfires, and the ocean sinks are shutting down.
Globally averaged CO2 concentration (a) and its growth rate (b) from 1984 to 2024. Increases in successive annual means are shown as the shaded columns in (b). The red line in (a) is the monthly mean with the seasonal variation removed; the blue dots and blue line in (a) depict the monthly averages. Observations from 179 stations were used for this analysis.
Reposted by Hannes Ullrich
Herzlichen Glückwunsch in den Süden! Wohl verdient und ganz wichtiges Forschungsfeld, in dem Politik & Gesellschaft noch viel Evidenz benötigen (werden). Chapeau und gutes Gelingen, @simonreif.eu !
Herzlichen Glückwunsch in den Süden! Wohl verdient und ganz wichtiges Forschungsfeld, in dem Politik & Gesellschaft noch viel Evidenz benötigen (werden). Chapeau und gutes Gelingen, @simonreif.eu !
Reposted by Hannes Ullrich
Attention IO job market candidates:

Sometimes speakers in the CMA's external economics seminar series have to cancel at relatively short notice. We would love for these slots to go to JMCs to present their job market paper.

Drop me a message if you are interested or share with those who might be.
Reposted by Hannes Ullrich
Pentagon reporters could be seen leaving the sprawling U.S. military headquarters with boxes after at least 30 news organizations declined to sign a new Pentagon access policy for journalists, warning of the potential for less coverage of the world's most powerful military.
Reposted by Hannes Ullrich
🏦 Exploring the Economics of Ageing and Pensions: Joint Workshop at @wzb.bsky.social

🌐The DFG Research Unit “Labor Market Transformation”, together with WZB & @diw.de is organizing a two-day workshop on November 20–21, 2025 📅

🔗 www.wzb.eu/de/veranstal...

@phaan.bsky.social #pensioneconresearch
Reposted by Hannes Ullrich
"Today, NPR will lose access to the Pentagon because we will not sign an unprecedented Defense Department document... Signing that document would make us stenographers parroting press releases, not watchdogs holding government officials accountable."

www.npr.org/2025/10/14/g...
Opinion: Why I'm handing in my Pentagon press pass
Tom Bowman has held his Pentagon press pass for 28 years. He says the Pentagon's new media policy makes it impossible to be a journalist, which means finding out what's really going on behind the scen...
www.npr.org
Canada and Europe don't seem to be scooping up junior Economists, even with fewer job options in the US. At least not on the US job market, and only slight uptick on the European job market. 😔
#EconSky📉📈
US and Europe + Canada on similar trajectories:
Interesting, thanks! Europe alone then also looks this these?
Berücksichtigt ihr bei der Analyse auch, dass Leute, die TikTok nutzen, sich grundsätzlich in ihren Parteipräferenzen von denen, die kein TikTok nutzen, unterscheiden könnten?
Reposted by Hannes Ullrich
Diese These hat mich bei der Recherche länger beschäftigt. Ich glaube, das sie (zum Glück) nicht stimmt. @idz-jena.bsky.social
Reposted by Hannes Ullrich
Toller Artikel @zeitonline.bsky.social und sehr kompatibel mit unseren Analysen zu #TikTok #AFD und den #BTW25.
I've only seen this now. Very happy to see this fantastic paper by @farasatbokhari.bsky.social and co-authors on antibacterial resistance and the demand for antibiotics win the best paper award in #IJIO: www.sciencedirect.com/science/arti... (open access)
Congratulations!
🏅Huge congrats to Florian Dendorfer & Farasat A.S. Bokhari, Franco Mariuzzo & Weijie Yan for being awarded the 2025 IJIO Best Paper Awards!
ℹ️ earie.org/ijio-awards/
This is really cool (the analysis, not the state of the market). Would it be easy to split these by US / non-US or US / Europe?
Reposted by Hannes Ullrich
Added Finance job decomposition, and Federal Reserve Bank/Board jobs (zero so far this year...)
Reposted by Hannes Ullrich
Posted a short blog post with updated data (and public repo with data) of current state of Econ job market:

paulgp.com/2025/10/08/j...
Reposted by Hannes Ullrich
📢 Future Economic Thinkers Wanted!
Ready to explore cutting-edge economic theory, master data-driven analysis, and make a real-world impact?

@diw.de
#DIWBerlin #PhDEconomics
The picture shows a dark green background with a white font, which reads the following. PhD in Economics. Applications now open for the DIW Graduate Center PhD Program. Next intake October 1st, 2026. Application period is from October 15th, 2025 until January 15th, 2026. Full-time scholarship with a monthly stipend of €1650 in the first year. Apply now to start your PhD journey with us! For more information and application website, please visit diw.de/gc
Reposted by Hannes Ullrich
This is not surprising. We already know direct carbon compensation doesn't work. And carbon credit trading schemes are just a more elaborate version of the same thing.
Ein Simpson-Mem.
Don't make me tap the sign: carbon compensation is a scam.
Reposted by Hannes Ullrich
Lancet Planetary Health Editorial www.thelancet.com/journals/lan... "The routes of scientific influence are usually through information either directly to policy makers or to sway politicians via public opinion. Both routes appear to be narrower than they have been in recent times."
Evidence with a quiet voice
Important aspects of this moment in history are typified by two developments during the last week of September. On the one hand an annual report from the Potsdam Institute for Climate Impact Research ...
www.thelancet.com
Should've included a screenshot of the abstract...here it goes:
Screenshot of discussion paper title page with following content: 

Are M&As spurring or stifling innovation? Evidence from antidiabetic drug development

Jan Malek, Jo Seldeslachts, Reinhilde Veugelers

July 11, 2025

Abstract
This paper provides empirical evidence on which M&A deals spur innovation, and which stifle it. To do so, we consider not only the product market position of the acquiring firm, but also the position of both target and acquirer in the technology space. Focusing on the antidiabetic drugs market, our dataset tracks the lifecycle and patenting of all individual antidiabetic projects in development between 1997 and 2017. We show that most terminations of acquired projects occur while the projects are still far from product market entry. Nevertheless, a number of these early-stage acquisitions have a positive impact on innovation. These cases arise when incumbents acquire projects close to their own projects in product markets, but only if these projects are also close in technology markets. Those deals are associated with increased subsequent patenting, which is consistent with the exploitation of technological synergies. Our results point to the crucial role of combining both product market and technology market positions in assessing the innovation effects of pharmaceutical M&As.
Reposted by Hannes Ullrich
❗❗❗🚨🚨🚨 Next @cepr.org IO Virtual Gathering is taking place on NOVEMBER 7 at 2pm CET. 1st hr is dedicated to JM presentations by IO candidates graduating from Eur / UK schools. If interested, please submit a draft of your JMP & CV at: t.co/aUTPTWSten by OCTOBER 26! 🚨🚨🚨 ❗❗❗ #econjobmarket
Reposted by Hannes Ullrich
Very nice cross-country-industry data collection! There can be more nuanced results regarding effects on innovation when carefully combining actual product market and technology data: www.diw.de/documents/pu...
Das hier. Und städtische Initiativen auf lokale Effekte fokussieren, z.B. www.sciencedirect.com/science/arti...
Imo, wäre es besser, wenn Klimaaktivisten und Parteien für das Handelssystem und seine Ausweitung kämpfen würden, statt für Einzelaktionen wie in HH.