The second paper, with Xiaomin Wang and Boyu Zhang focuses on an empirical question: to which extent do different asymmetries between players affect their ability to cooperate and coordinate?

The paper with @plaporte.bsky.social, @nikoletaglyn.bsky.social and Martin Nowak asks an important theoretical question. Repeated games allow for (uncountably) many strategies. To facilitate an analysis, researchers often study simplified subspaces. To which extent are such results reliable?

Yesterday, two papers appeared in @pnas.org, to which I contributed to. Both papers deal with strategic behavior in repeated games. Apart from that, they are quite different. A 🧵
doi.org/10.1073/pnas...
doi.org/10.1073/pnas...

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...

In a new paper published today, @yohm.bsky.social and I discuss a general framework to make sense of social norms and different indirect reciprocity models. Below is a 🧵, here is the paper:
www.pnas.org/doi/10.1073/...