Hans-Theo Normann
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normann.bsky.social
Hans-Theo Normann
@normann.bsky.social
Econ Professor HHU
Reposted by Hans-Theo Normann
📣 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
Delegate Pricing Decisions to an Algorithm? Experimental Evidence
We analyze the delegation of pricing by participants, representing firms, to a collusive, self-learning algorithm in a repeated Bertrand experiment. In the baseline treatment, participants set prices ...
arxiv.org
November 3, 2025 at 11:30 AM
Reposted by Hans-Theo Normann
Er ist ein Meister der Klarheit: Studierende loben die Vorlesungen von Prof. Dr. Hans-Theo Normann aus den Wirtschaftswissenschaften @hhu.de für ihre Struktur und Verständlichkeit. Dafür ist er für den #hhuLehrpreis2025 nominiert. 👏📚
May 27, 2025 at 7:29 AM
Reposted by Hans-Theo Normann
Stronger together - support for 🇺🇦 from private individuals, coordinated with @oechssler.bsky.social:

200 people gave at least 200€. Combined with extra donations, the total is about 60.000€.

The money is already in Ukraine. Thank you!

yourcontributionsquared.eu
Your Contribution Squared
yourcontributionsquared.eu
March 17, 2025 at 12:29 PM
Reposted by Hans-Theo Normann
🤝 An der MathNat-Fakultät, direkt am Gebäude 25.12, ist nun das bekannte Banner mit der Botschaft „Wissenschaft braucht Demokratie. Demokratie braucht Wissenschaft.“ zu sehen.
1/3
March 13, 2025 at 2:15 PM
Reposted by Hans-Theo Normann
Strong show of support for 🇺🇦 on the first day of

yourcontributionsquared.eu/en

Six days to go, to coordinate donation pledges

Please consider passing the link on to others, also outside of Bluesky
Your Contribution Squared
yourcontributionsquared.eu
March 4, 2025 at 10:23 AM
Reposted by Hans-Theo Normann
Sometimes, the timing just works out: Tomorrow, I’ll be discussing the concept of zero-sum and non-zero-sum games in a lecture. This article fits perfectly, so we’ll read it together. That probably means we’ll watch fewer videos of Hollywood movies featuring 'Chicken'—so, a bit less 🍿🍿 😉 #TeachEcon
Its easy to think of interactions as being zero sum, when they almost never need to be. Here is a powerful article which discusses the trap and how to escape it.
Welcome to the Zero Sum Era. Now How Do We Get Out? (Gift Article)
Zero-sum thinking has spread like a mind virus, from geopolitics to pop culture.
www.nytimes.com
March 2, 2025 at 10:03 AM
Wirklich sehenswert.
Rente: Auf einer Skala von eins bis zehn sehe ich den Handlungsbedarf bei der Rente bei zehn.👇

Exzellenter Beitrag im ZDF zur Reform der Rente:
Jochen Breyer reist bis nach 🇯🇵, spricht mit den Wirtschaftsweisen & zeigt, wie Reformen das Rentensystem sichern könnten – aber Politik oft nicht handelt.
January 17, 2025 at 5:35 PM
Reposted by Hans-Theo Normann
📉📈 Deep Q-learning of prices in oligopolies: the number of competitors matters

https://www.sfb1283.uni-bielefeld.de/preprints/sfb24074.pdf

"…whereas in a duopoly setting DQNs might lead to prices very close to the monopoly level, the supra-competitive #pricing resulting from the … 1/4
PDF
www.sfb1283.uni-bielefeld.de
January 6, 2025 at 11:30 PM
Reposted by Hans-Theo Normann
This article should be required reading for anyone commenting on the political effects of social media.
January 4, 2025 at 6:22 PM
Reposted by Hans-Theo Normann
📢 New CRC Discussion Paper #EconSky

Dirk Engelmann, Jana Friedrichsen, @roelonthehill.bsky.social, Pauline Vorjohann, Joachim Winter decompose trust into key components and find beliefs to be a main driver, and risk preference to be more relevant than social preferences. A 🧵

1/4
February 14, 2024 at 8:00 AM
Reposted by Hans-Theo Normann
A new long-run effort - fingers crossed!
We are happy to announce the new DFG-funded longterm German Longitudinal Environmental Study (GLEN).
@glen-study.bsky.social will provide representative, individual level panel data on human-environmental interactions and climate issues.

glen-studie.de
#sciencenews #Klimawandel #climatechange
December 22, 2023 at 7:51 AM
Reposted by Hans-Theo Normann
I consider this one of the most important parables to come out of Twitter’s existence
December 21, 2023 at 7:41 PM
Reposted by Hans-Theo Normann
Last week, Ariel Ezrachi was at our Düsseldorf law faculty as the 1st Visiting Professor 👨‍🏫 . We had several events, but what I loved most was his inspiring discussion with my students in the #antitrust class. (I was a bit proud of them.) Thanks, Ariel! @hhu.bsky.social
December 8, 2023 at 2:52 PM
Klimapolitik: Der deutsche Kohleausstieg verpufft www.faz.net/aktuell/wirt... #fplus
October 22, 2023 at 3:20 PM