Enhanced winnings in a mixed-ability population playing a minority game

We study a mixed population of adaptive agents with small and large memorie s, competing in a minority game. If the agents are sufficiently adaptive, w e find that the average winnings per agent can exceed that obtainable in th e corresponding pure populations. In contrast to the pure population, the a verage success rate of the large-memory agents can be greater than 50%. The present results are not reproduced if the agents are fed a random history, thereby demonstrating the importance of memory in this system.