Hi all, please spread the word and we hope everyone can make good use of this new data drop: cmfdata.org The full surviving establishment-level Census of Manufactures manuscripts and digitized data from 1850, 1860, 1870, and 1880!

"Da hast du jetzt eher uns rekrutiert als umgekehrt." Evtl habe ich gerade den beiden Fundraiserinnen, die an unserer Tür geklingelt haben, so eindrücklich von Effektiv Spenden erzählt, dass sie von dem Konzept ganz angetan waren. effektiv-spenden.org

Wenn man heute mit einem Adventskalender anfängt, schafft man zwei bis Weihnachten!

Just to be clear: I expect a contrast in the polishedness of the papers, simply because: have you ever written a more polished paper than your job market one? For the talks: I will still need to put mine together, so that's another thing to find out tomorrow. Either way, it will be interesting!

How strong are contrast effects? Join us at the U Penn seminar and find out: After @vasilisawerner.bsky.social presents her super-polished (former JM) paper, "Destructive Communication", I will present "Individual Preferences for Truth-Telling". Tomorrow, 7 pm CET. Registration: shorturl.at/mD1qe

If the email of the company your employer hired to teach you about phishing looks so suspicious that you delete it immediately... ...and your employer first notifies you about this upcoming training more than an hour later... ...it will surely be a very successful training!

Evidence that academics have been complaining about service roles for about 3000 years...

Mein Bruder beschwert sich, dass das Bewerbungsverfahren für seinen neuen Job lange gedauert hat. "Ich hab mich Anfang August beworben und erst Ende September Rückmeldung erhalten!" Ich: "August 2025?" Die Länge der deutschen Berufungsverfahren hat mich abgestumpft. #IchBinHanna

"A castle!" "This is a large church." "Who lives in the church?" "Nobody." "Why does nobody live there? It is a house. And a big one." My niece (4) is visiting the city and asking good questions.

This is one of my favorite conferences! Relatively small, great discussions and a variety of topics studied with the same methodology - field experiments. Thank you so much for organizing it, @henninghermes.com @lergetporer.bsky.social @fpeter.bsky.social @simonwiederhold.bsky.social! 🙏🏼

Back to teaching or studying economics at university this September? @voxdev.bsky.social has tons of useful resources for university economics courses - I have included some examples in this thread. 1/n

Excited to share that during my most recent conference trip, I realized my French is not sufficient to discuss the digital euro. With a cab driver. After midnight.

Why LLMs are not a substitute for humans in research on human behavior: Human participants were responsive to semantic nuances that LLMs didn't pick up. Example: Cut their beard to shame someone vs cut their beard to shave someone. #Econsky

What a surprise. Not.

I present to you the ultimate filing cabinet for old and resting (let's be honest: abandoned) projects, well hidden under a staircase in the back entrance of a local government office.

Important read for everyone who collects their own data on online platforms #econsky

#Econsky 🚀 Call for Presenters for our 2025–26 Seminar Series at the 21st Century India Center, UCSD. Nominate yourself 👉 docs.google.com/forms/d/e/1F...

Bad: being on leave the week before the exam. Even worse: being on leave the week before going to the field for data collection (at the same time that the exam takes place). Booking vacation half a year in advance may not be ideal.

Have a research idea related to philanthropy, particularly measuring the impact of our work? Get in touch! Perhaps we could partner to implement it at Arnold Ventures. You know I love a good causal study.

🚨Free data alert!! 🚨 Please share. Large new dataset of Amazon product reviews, including full text and photos and product characteristics, with individual *reviews labeled as fake reviews*. I believe this is the first publicly available data of this kind. github.com/bretthollenb...

We're hiring! I'm looking for a PhD student in Economics (75%, E13) to join my team at TUM Campus Heilbronn starting Oct 2025. Work on field & survey experiments in applied micro, behavioral econ & econ of education. Deadline: June 30. Please share! Call for applications: tinyurl.com/msdsrhv6

Surprises from other disciplines: Someone emails their new publication in which they cite one of my publications. Undecided how to feel about this: a nice gesture, but I also appreciate the +300 other author teams citing this publication and not sending one email each. Thanks to all, I guess?!

For those who teach Behavioral Econ, what textbook/s do you use? #econsky

👏 Fischer-Lescano points out that the AfD learns from 🇺🇲 attacks on academia, and so should we. "One is inclined to underestimate the danger posed by far-right hostility toward science. The [...] self-exposing ridiculousness [...] is not deserving of a place in discourse." Indeed highly dangerous.

Please enjoy these delightful images from a 1993 paper on walrus vision, showing estimated visual fields in different poses (I especially love how they look like alternate covers for a scifi novel about space walruses with ray-shooting eyeballs) Source: www.aquaticmammalsjournal.org/wp-content/u...

Good that they didn't apply the "the result is not surprising" heuristic to reject the paper in this case. It's important to document issues with the publication process given that it's the main evaluation criterion. But also: now what?

Also today: Interdisciplinary event at the uni. An older professor is interested in experimental economics and tries to find out the name of the professor I work with. Plot twist: it's me, assistant prof of experimental econ, with my own group.

Call with the president of a student association. They reached out because they want to increase the number of female members. I asked why. Answer: Mainly because firms have told them so. Turns out it's not really a priority for the current members (for now). I asked them to reflect on this...

"We'll just terraform Mars," they insist, unable to terraform Earth, a planet that is already perfect except it's like 2° too warm.

In the German system, the professor is - supervisor - employer - examiner of "their" PhD students. Plus, they usually function as gatekeeper to the relevant scientific community. What can possibly go wrong? 🤔

Today, we also have a law in Germany that obliges all civil servants (most professors in Germany have this status) to commit themselves to the free democratic order as defined in the Basic Law and to stand up for its preservation (BeamtStG §33 (1)).

Today is World Press Freedom Day. Press freedom is essential for democracy. It is under (economic, political) threat in many places. In fact press freedom is declining and only very few countries have high degrees of press freedom. Source: @rsf.org #WPFD #wpfd2025 #pressfreedom

Great thread on a great threat, with lots of scientific evidence. In short: the "Brandmauer" is important on various dimensions. We should make sure it keeps standing.

I just attended a conference in the US. We had one speaker detained and two others turned away at the border.

This is fantastic! This website allows you to watch TV stations from around the world. I just watched 2 minutes of Afghan volleyball. All the small regional TV stations from Germany are here too. Spread the word! Source: tv.garden

Heidelberg is not only a beautiful city with an old university, but also - maybe more importantly - has a critical mass of researchers running a variety of experiments. #EconSky

📣 We’re hiring! 📣 Join @woessmann.bsky.social and my team at @ifoeducation.bsky.social as a PhD student to conduct super-exciting field experiments in the Economics of Education 🤩🚀 Reach out if you have any questions! 💪🏻🙏🏻 @cesifo.org

🇺🇦 You want to contribute but feel it will not be significant? How much (x) would you donate if x people will donate the same amount each? Example: x=50 --> donation of 2,500 Match donations with others via this mechanism and spread the word! yourcontributionsquared.eu/en/ #SlavaUkraini

🇺🇦 You want to contribute but feel it will not be significant? How much (x) would you donate if x people will donate the same amount each? Example: x=50 --> donation of 2,500 Match donations with others via this mechanism and spread the word! yourcontributionsquared.eu/en/ #SlavaUkraini

Centre for the Study of African Economies at University of Oxford will automatically consider all applicants from Africa for full funding for the MPhil in Economics - we have new scholarships for eligible students. How? Just apply asap: deadline 4th March (extended deadline): see below

📣Last call for BÆM 2025! 💥Development Economics (May 6-7), Keynote: @saralowes.bsky.social (UCSD) 💥Gender, Diversity, and Human Capital (May 8-9) Keynote: Michèle Tertilt (Mannheim). Submissions close tomorrow, 28th Feb! More info 👇 bsky.app/profile/paul...

Has anyone bothered to download content from the USAID DEC (Development Exchange Clearinghouse)? Obvsly it's gone.

What a loss for USAID. Development economists like Dean are committed to rigorously evaluating and increasing the efficiency of programs. This is not about efficiency but "DOGE figuring out how to dismantle an agency, and they're using USAID as the guinea pig to figure that out." Great interview.

It's a very sad day. Just notified that @iza.org is closing its doors as of 31 December 2025. At a time when labor is under attack and technological change moves at an ever-faster pace, I can't help but think that this is a short-sighted decision. My heart goes out to those folks who work there.

IZA is one of the more prominent and internationally visible economic research institutes we have in Germany. It has also built a global network of great economists (I say this without being a member). I sincerely hope they find a reliable funding source to continue its work. #EconSky

ESA conferences are always fun! I hope I'll be able to make this one. #EconSky #EconConf

After submitting a grant proposal. Funder: [After several months]: "we have some more questions, please respond within a week". Me: respond within a week. Funder: [After another couple of months]: "we have some more questions, please respond within a week". Me: I had filed this as a rejection