Does cultural or behavioral similarity always promote social cohesion? Just published, we add some foundational theory that shows the answer is "no" - it depends on your causal assumptions about a particular social interaction. Paper: doi.org/10.1017/ehs.... Here's a thread! 1/

Extremely cool! I’m looking forward to digging into this paper more!

In games like the Hawk-Dove, Prisoner's Dilemma and Stag Hunt, cultural similarity (as measured by cultural Fst) promotes selection for group-beneficial outcomes. This theoretical finding is consistent with several recent empirical studies, showing that CFst predicts willingness to cooperate. 2/