Dynamics of multi-frequency minority games

The dynamics of minority games with agents trading on different time scales is studied via dynamical mean-field theory. We analyze the case where the agents decision-making process is deterministic and its stochastic generalization with finite heterogeneous learning rates. In each case, we characterize the macroscopic properties of the steady states resulting from different frequency and learning rate distributions and calculate the corresponding phase diagrams. Finally, the different roles played by regular and occasional traders, as well as their impact on the systems global efficiency, are discussed.Received: 4 August 2003, Published online: 22 September 2003PACS: 87.23.Ge Dynamics of social systems - 05.65.+b Self-organized systems - 02.50.Le Decision theory and game theory - 05.10.Gg Stochastic analysis methods