Skip to Main Content
This paper describes the states of a heterogenous population of agents playing the Iterated-Prisoner's Dilemma. The interactions of the agents are governed by five interaction processes which range from highly localized interactions to complete mixing; while the evolution of the agents is governed by five adaptive processes which range from local processes to global processes. For certain combinations of interaction processes, adaptive processes and control parameters, the populations alternate between periods of cooperation and defection while spending relatively little time in between. In addition, even at high rates of mutation, the population does not degenerate into random play.