Several theories have been proposed to answer the problem of why "selfish" (i.e. those subject to natural selection) individuals cooperate or behave altruistically towards each other. Of these, two of the most important and most widely known are reciprocity theory, and kin selection theory, as popularised by Axelrod and Dawkins respectively. My work has focussed on situations in which the mechanisms underlying both these theories are expected to operate, and in trying to understand the ways in which they might interact. In the course of my work I have also become concerned with the best way to model these processes.

This seminar is the first one of a series in which leading academics from member institutions of the Worldwide Universities Network discuss their latest research findings and theories over a live video link. The series provide a forum where you can listen in real time to the experts - whether they are located in the US, the UK or mainland Europe - and get direct answers to your questions, without leaving Leeds.