Fig. 6: Scheme of the dynamics.
From: Catalysing cooperation: the power of collective beliefs in structured populations
Strategies are updated by the birth-death process. An individual is chosen to reproduce (represented by a solid black outline on the figure) with probability proportional to their fitness. A neighbour of the reproducing individual is chosen randomly to die (indicated by a dashed black outline) and gets replaced by an identical offspring of the reproducing individual (as represented by an arrow and a small dot). In each step of the birth-death process, a mutation of actions might occur with probability ÎŒA. If a mutation occurs, the newly produced offspring has different actions than the parent but the same belief. A belief mutation can occur in each time step with probability ÎŒB. The belief of a randomly chosen individual (represented by a dotted black outline) is randomly set to one of the two beliefs present in the population.
