Start revving up the engines for #CCS2026! 🚀 Join us Oct 9–16 in Binghamton, NY & online for "Complex Systems for the Changing World."🗺️ Remember to submit by May 15th!📅 Here is our extraordinary keynote lineup spanning networks, life, mind, matter, diseases & society. 🧵👇

Our new paper is out! We study how cooperation based on reputation survives when reputation information is incomplete. A key result: “not observing actions” and “not knowing reputations” have very different effects, and costly punishment can help in the latter case. www.nature.com/articles/s41...

Incomplete reputation information and punishment in indirect reciprocity - Scientific Reports

Scientific Reports - Incomplete reputation information and punishment in indirect reciprocity

nature.com

We have extended the abstract submission deadline to January 5th, 2026!!! Enjoy your holiday season😘 sites.google.com/view/icsd202...

ICSD 2026 - Abstract Submission

The abstract submission system is now LIVE at: https://amarys-jtb.jp/ICSD2026/ Abstract submission will close on December 22, 2025 January 5, 2026, 23:59 JST (14:59 UTC).

sites.google.com

Abstract submission for #ICSD2026 is now OPEN!! Submit by December 22, 2025, 23:59 JST (14:59 UTC). Please visit our website for more details: sites.google.com/view/icsd202... *Registration and hotel reservations will be open in February 2026.

🗞️📣 New paper "Exact conditions for evolutionary stability in indirect reciprocity under noise" with @chilbe.bsky.social & @yohm.bsky.social How can cooperation persist in large groups of unrelated individuals? Reputation 🗣️ But which social norms make this stable, even when mistakes happen? 🧵(1/6)

Exact conditions for evolutionary stability in indirect reciprocity under noise

Author summary Understanding how cooperation can evolve and be sustained is a central question in evolutionary biology and social science. One prominent explanation is indirect reciprocity, where indi...

journals.plos.org

📢 We’re hiring! RIKEN iTHEMS has launched a new Mathematical Social Science Team, and we’re looking for researchers to join us. If you're into cooperation, norms, or networks, check out the call! 🔗 www.riken.jp/en/careers/r... Feel free to DM me if you have questions!

Seeking a few Research Scientists or Postdoctoral Researchers at Mathematical Social Science Team (W25015)

riken.jp

I updated the rb_call library, which allows you to call Ruby methods from Python code. It now works with the latest version of Python. github.com/yohm/rb_call

A great summary of our recent articles, now live here 👇 The work was conducted at the MPI for Evolutionary Biology🧑🏻‍🔬 Check it out to learn more about game theory and cooperation 🤝

Tagesschau Bot@tagesschau.bsky.social · 2y ago

Kooperation oder Konkurrenz - was ist besser? #Psychologie #Gefangenendilemma

Does costly punishment—paying a cost to reduce an opponent's payoff—help sustain cooperation in indirect reciprocity? Punishment is often seen as a powerful tool, but its effectiveness here is debated. Our new study explores this: sciencedirect.com/science/arti... 🧵