Jeffrey Barrett (University of California, Irvine), Calvin Cochran, Brian Skyrms (University of California, Irvine)
We present a hierarchical model for the evolution of compositional language. It has the basic structure of a two-sender/one receiver Lewis signaling game augmented with executive agents who can learn to influence the behavior of the basic senders and receiver. The model shows how agents with no preassigned representational roles might evolve a compositional language in the context of costly signaling.