Speaker
Description
Direct reciprocity is a central mechanism for the evolution of cooperation, yet most theoretical results rely on simplifying assumptions about information, interaction structure, and evolutionary dynamics. In this talk, I revisit direct reciprocity by analysing how relaxing these assumptions affects evolutionary outcomes. Building on recent work, I study settings in which agents have access to limited payoff information and where alternative evolutionary processes govern strategy updates. Under such constraints, the set of viable strategies changes, and classical reciprocity mechanisms can lose their effectiveness. In particular, I show that evolutionary outcomes depend sensitively on how agents update their behaviour, highlighting the role of modelling assumptions in shaping cooperation.
