Matthias Kasper

We are thrilled to welcome Esther Duflo and Abhijit Banerjee as the new Lemann Foundation Professors to our department, beginning in the summer of 2026.

Neues Diskussionspapier: "Asymmetric Labor Supply Responses to Tax Rate Reform: Experimental Evidence" von Katharina Pfeil, @mkasper.bsky.social, Sarah Necker und @larsfeld.bsky.social
www.eucken.de/publikatione...

Do you remember Francesca Gino's claim on her website that HBS analyzed the "wrong data file" in their investigation, and that a "real file" proved her innocence?

HBS is now claiming that the "real file" was fabricated by Gino... and thus that Gino's claim was defamatory.

"manuscript under review"

Congrats @svanbaal.bsky.social!

Don’t let your work break your soul. I remember well how it lifted our spirits when we—being young RAs at the University of Vienna—were looking for guidance!

Read the full study and find our preregistration, data and code here:

www.eucken.de/app/uploads/...

Feedback is much appreciated!

Institutional rules promote cooperation by strengthening personal and social norms, which in turn sustains contributions over time. In contrast, in the absence of a rule, norms are weaker and contributions decline steadily over time. (5/n)

Surprisingly, we find no evidence that biased audits erode norms, reduce cooperation, or diminish compliance. (4/n)

We find that:
Rules work: Simply having a rule reduces free-riding and increases cooperation.

Adding enforcement leads to exact rule-following and less free-riding — but also crowds out full, voluntary cooperation. (3/n)

We test this in an experiment varying the existence of a rule governing public good contributions & whether enforcement of the rule is biased against some players. (2/n)

🚨 New research on cooperation & rule compliance with @simoncolumbus.bsky.social , Matthew Rablen & Lars P. Feld (@euckeninstitut.bsky.social)

How do rules and audits shape behavior in heterogeneous groups? (1/n)

Remember the "Highlights" that some Elsevier journals require? Dean Karlan and friends developed an amazing way to troll them: haikus!

Welcome! 👋

@lilithburgstaller.bsky.social @hannesrusch.bsky.social @karlcao.bsky.social

That’s a wrap!

Thank you for a great workshop on economic and consumer psychology hosted by the Walter Eucken Institut at @uni-freiburg.de.

Looking forward to continuing the conversation at the University of Vienna in 2026!

I have a postdoc position in Behavioral/Experimental Economics available for 6 years, at the oldest university in Germany in beautiful Heidelberg. Please forward to anyone who might be interested!

#EconJobs #AcademicJobs #HigherEd #Economics #JobAlert

Tax revenue could drop by 10 percent amid turmoil at IRS Staff cuts and disruptions related to the U.S. DOGE Service have officials bracing for a sharp loss of revenue.

🚨 Big SCOOP 🚨

Tax revenue could fall by as much as **10%** this year, per sources, as taxpayers and businesses see the Trump admin as less likely to challenge tax cheats.

That'd be **$500 BILLION** in lost revenue.

It'd nearly double the tax gap in a single year.

📣 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

Trump administration plans 25 percent staff cut at IRS taxpayer help office The Taxpayer Advocate Service, which operates as an internal watchdog, would see deeper workforce reductions than the agency overall.

Tax SCOOP: Trump administration plans to cut staff at the Taxpayer Advocate Service -- the taxpayer help center -- by more than 25%

These are jobs designed to help people struggling with their finances, identity theft or other tax issues.

📣 Thrilled to announce our 4th Workshop on Field Experiments in Economics and Business, 8-9 Sept 2025, TU Munich @tum.de, Campus Heilbronn. Keynotes: Ulrike Malmendier (University of Berkely, California) & Noam Yuchtman (@ox.ac.uk) 🫶🏻

Submission deadline 15 May 🚨

#EconSky

Neues aus der @deutsche-bahn.bsky.social: „Ja, meine Damen und Herren, wie Sie bemerkt haben, haben wir jetzt vergessen in Bonn-Beuel anzuhalten“ 😅

Not only for them.

Deutsche Post is closing down IZA. Wow!

www.deutsche-post-stiftung.org/media/202502...

The Impact of Being Denied a Wanted Abortion on Women and Their Children* Abstract. This paper examines the impact of denying a wanted abortion on women and children in Colombia using high-quality administrative microdata and cre

Recently accepted by #QJE, “The Impact of Being Denied a Wanted Abortion on Women and their Children,” by Londoño-Vélez (@jlondonovelez.bsky.social) and Saravia: doi.org/10.1093/qje/...

📣 Call for Papers: submission deadline 14 Mar

Workshop on the Economics of Taxation
🗓️ 3-4 June
📍Barcelona

Topics: #CorporateTax, inequality, #OffshoreWealth & more

Keynotes: @dinapomeranz.bsky.social (University of Zurich) & Youssef Benzarti (UC Santa Barbara)

👉 taxobservatory.eu/event/worksh...

Research Group Lead (PostDoc, f/m/d) in Public Finance or Economic Policy The position is limited to three years (WissZVG), with the option of extension, and serves to further academic qualification. If […]

Come work with us in beautiful Freiburg!

6 year post doc in Public Economics or Economic Policy

No teaching & great team

Details ⬇️

www.eucken.de/en/career/po...

What a terrific idea! I can’t make it this year but hope there will be another chance in 2026.

Researcher: "We let the data speak for itself."

Earlier that day:

Why do people distrust government agencies, even when they provide vital info (e.g., health, environment)? Can low-cost interventions restore trust & promote welfare-enhancing behaviors? Our study provides novel experimental evidence on these key questions (1/5) 👇 #EconSky