📣 New paper! "Delegate Pricing Decisions to an Algorithm? Experimental Evidence" with @normann.bsky.social, Nina Rulié, & @ostypa.bsky.social We study what happens when humans delegate to a collusive algorithm, and AI pricing adoption becomes a strategic choice! arXiv: arxiv.org/abs/2510.27636

The fact that fries/chips are just normally sold at Chinese restaurants in Ireland should be studied. But still: spice bag is the best fast food invention since ???

First day in the office! Excited to join the University of Southampton as an Assistant Professor/Lecturer

I like the new robot 'personality' feature of ChatGPT. Although it's probably just a tweak to a system message, it's much more to the point and less wordy. Just weird that, out of the blue, it sometimes ends with things like, 'I am synthesized and not embodied.'

We have our first games ever in Ireland next month. The event will be at the University of Galway as part of CERIS’s Annual Workshop on September 26th. Virtual participation is possible and coauthorship to a meta paper is granted. Register here: www.surveymonkey.ca/r/Replicatio...

With the release of Gemini Live / OpenAls Operator, we started working o perspective piece on how to tackle the growing threat these systems pose to online behavioural research and its validity. We hope this helps move the conversation forward. Paper: arxiv.org/abs/2508.01390

🚨New paper alert! "Recognising, Anticipating & Mitigating LLM Pollution of Online Behavioural Research" Online experiments are being polluted by LLMs. We map the threat and fixes🧵 w/ Raluca Rilla, @hiromu1996.bsky.social, @iyadrahwan.bsky.social & Anne-Marie Nussberger arxiv.org/abs/2508.01390

Sitting on the beach, sipping cherry cola (sin azúcar), just won three straight games of Uno against my wife. Life is good.

Last day of my postdoc with some of the best colleagues I could have hoped for.

Mengchen Dong @iyadrahwan.bsky.social and I report data from 3,000+ people (incl. welfare claimants) showing how much accuracy they're willing to sacrifice to get faster AI decisions for social benefits. it's very hard for non-claimants to understand claimants. www.nature.com/articles/s41...

Thrilled to share that this September I’ll be joining @sotonecon.bsky.social at @unisouthampton.bsky.social pton.bsky.social as a Lecturer 🎉 I look forward to continuing my research in IO, experimental economics, and human-AI interactions, and to engaging more with the UK econ community.

You gotta love German academia. Receiving a letter (yes, an actual letter, not an email) many, many months after applying just to tell you that you won't be considered for the professorship is always quite the experience.

So happy to see this in print! What began as my Master’s thesis in Bonn 7 years ago is now published in Experimental Economics. With @adrianecon.bsky.social & Fabian Winter doi.org/10.1017/eec....

Does anyone know a paper that specifically looks at the share of online samples (Prolific, MTurk, etc.) relative to lab studies/field studies in recent years? I feel like I saw some stats on that sometime ago on X, but I can’t find it.

Does anyone know a paper that specifically looks at the share of online samples (Prolific, MTurk, etc.) relative to lab studies/field studies in recent years? I feel like I saw some stats on that sometime ago on X, but I can’t find it.

Nur weil es jetzt woanders schlechter läuft, bietet das deutsche akademische System nicht plötzlich Top-Bedingungen. Die strukturellen Probleme sind massiv. Das darf nicht von der Reformnotwendigkeit ablenken. www.zeit.de/2025/23/wiss...

Happy to be flying back to Berlin next week, but proud to be visiting an institution with the courage to stand its ground and fight back.

The "Berlin Center for AI Research in Economics and Management" (BAIREM) was founded at TU Berlin. With its work, the center strengthens the interface between technology, business and society - and makes an important contribution to responsible digital transformation. Find us: tu.berlin/wm/bairem

We did not want to start the week like this, but here we are. Yet again our chair’s inbox is filled with messages from replicators who have opened “replication” folders only to find names, Social Insurance Numbers, mental-health diagnoses and incomes of study participants. 🧵

A new discussion paper "Suspicion and Communication" (w/ Lisa Bruttel and Friedericke Fromme) is out now! Check it out: ideas.repec.org/p/pot/cepadp... 1/N @cepa-unipotsdam.bsky.social

Being in Philly for the #IIOC2025 reminds me how much my connection to US history comes entirely from American movies. Looking at Independence Hall, all I can picture is Nicolas Cage sprinting across the roof in National Treasure.

Happy to be in Michigan to give a talk on a new paper of ours about delegation to pricing algos! Booked an early flight to Detroit to see the Diego Rivera murals, only to realize it's of course Monday and the Detroit Institute of Arts is closed. Brilliant planning on my part.

Our paper "Algorithmic Price Recommendations and Collusion" is forthcoming in Experimental Economics! Big congrats to Matthias Hunold for co-authoring with not one, but two Werners. Talk about excellent taste. 😎

Let me tell you… trying to become a ✨global talent✨ sounds a lot fancier than it actually is.

How did Duke manage to lose that. Oof

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

If you’re a Boston-area grad student interested in behavioral economics meets computer science, come to this workshop on April 4. urldefense.proofpoint.com/v2/url?u=htt...

I will run a workshop on how to code experiments with oTree on April 29th & May 6th, 2025. The suggested workshop fee is 200€, but you can pay less or attend for free. Signup: forms.gle/6oe5qXmHTK1M... More information: jonasfrey.net/workshops #EconSky

What a ride! See you at the equator.

The Economics of Large Language Models: Token Allocation, Fine Tuning, and Optimal Pricing: Dirk Bergemann; Alessandro Bonatti; Alex Smolin

Job Alert: Professorship (W2- tenure track) of AI in Economics at @econmunich.bsky.social www.timeshighereducation.com/unijobs/list...

If you like the new economics working papers disseminated through this account, consider boosting this message so that others can notice its existence. And there are similar accounts for other fields of economics in this starter pack!

If you like the new economics working papers disseminated through this account, consider boosting this message so that others can notice its existence. And there are similar accounts for other fields of economics in this starter pack!

Excited to spend the next three months at Harvard University! Thanks to David C. Parkes and the EconCS group for hosting me. If you're around and interested in discussing the topics at the intersection of Economics and AI, especially IO-related work, please reach out!

📣 Exciting postdoc position! Please share! Interested in Organisation Design and running RCTs with organisations? 2 years postdoc in the Market Design department @ZEW, no teaching! jobs.zew.de/jobposting/1...

Thrips. Is there anything worse than thrips? Invading my precious alocasia like they own the place. But they’ve messed with the wrong household.

Another update to my Prisoner's Dilemma meta-analysis paper. This time I've added a new study! Thanks @tfwerner.com for helping me with getting the new data 😀😀 papers.ssrn.com/sol3/papers.... #MetaAnalysis #ExperimentalEcon #EconSky

In game theory, we often assume that people only interact in one game at a time. In a new paper, we explore theoretically and experimentally how people cooperate when they engage in two games concurrently, either with the same partner or with different partners, www.nature.com/articles/s41...

Summer Institute in Bounded Rationality, Berlin, 2025 www.decisionsciencenews.com?p=7210

🚨 Applications for the 22nd Summer Institute on Bounded Rationality are now open! 🌐 Join us in Berlin @mpib-berlin.bsky.social from June 17–25, 2025 to explore "Decision Making in a Digital World". ✏️ Application deadline is March 9 - more info at 👇!! www.mpib-berlin.mpg.de/research/res...

The Spoils of Algorithmic Collusion: Profit Allocation Among Asymmetric Firms: Simon Martin; Hans-Theo Normann; Paul P\"uplichhuisen; Tobias Werner

🚨Less than two weeks to go: Apply to the workshop “Text as Data in Behavioral Economics”, aimed at exploring the intersection of text mining techniques and behavioral economics. 📍Potsdam, Germany on 10-11.06.25. 📍Submit here until 15.02.25: sites.google.com/view/text-as... #EconSky

chain of thought is hilarious (distilled deepseek 14b running via ollama)

Happy to have received a Fellowship from the Joachim Herz Stiftung! I'l be using these funds mostly to continue my research into how companies use large language models like ChatGPT to influence consumer decisions. www.mpib-berlin.mpg.de/awards/tobia...

Lots of people responded by saying, "We have to go back to the physical lab." I agree this is one possible solution. But let's not forget the massive advantages online experiments have brought us. Going back to the lab can only be part of the solution. 🧵👇🏻

People often claim they know when ChatGPT wrote something, but are they as accurate as they think? Turns out that while general population is unreliable, those who frequently use ChatGPT for writing tasks can spot even "humanized" AI-generated text with near-perfect accuracy 🎯

Agreed! When discussing LLM alignment, it’s crucial to ask the follow-up question: "Alignment with whom?" Whether it’s with a countrys political narrative or the financial interests of a Silicon Valley company

Bots were a concern since then beginning of online subject pools. The concern is growing, but we still have plenty of tools. If this becomes an issue then pictures of instructions instead of text, with nightshade to prevent “reading” of pictures, plus lots of attention checks.

Just used Gemini Live to participate in a beh. experiment without even reading the instructions or speaking the language. LLMs acting as participants on platforms like Prolific could pollute data meant to study humans. With OpenAI’s operator model, this issue is growing. 🎥👇 youtu.be/NujyGZSA7Hg

I've decided to stop cross-posting on my X account, so I hope to reunite with many of you here! #EconSky