My paper with Wes Maciejewski on the Evolution of Extraordinary Self-Sacrifice is now featured in a special collection of articles on moral judgment and decision-making, so I thought it was a good time to share it here.

https://www.nature.com/articles/s41598-021-04192-w

#SocialEvolution #cooperation #altruism #spite #KinSelection #InclusiveFitness #AnimalBehavior

I worked through just one of the models, the Brothers Karamazov Game. In this model, the two brothers agree to #coordinate their actions to help their brother Dmitri.

The analysis of the game is included in the appendix, so I decided to try using a different mathematical approach to the one Jones used. The method can handle #nonadditive #fitness effects in group games with discrete strategies, i.e., the kind of situation that can't be handled by #InclusiveFitness