Evolution in Symmetric Incomplete Information Games

The paper compares two models of evolution in symmetric two-player games with incomplete information. One model postulates that the type of a player is fixed, and evolution works within types. In the other model type-contingent strategies evolve. In the case of two types and two strategies it is shown that the stability properties of stationary states are the same under the two dynamics when payoffs do not depend on the type of the other player, but may differ when they do.