It is developed a dynamic evolutionary model that provides microfoundations to incomplete nominal adjustment. It is shown the emergence of both pure strategy evolutionary equilibria (either only fully rational or boundedly rational firms survive) and mixed strategy evolutionary equilibria (both firms survive). Whereas money is neutral in pure strategy equilibria, it is non-neutral in mixed strategy equilibria. It is also analyzed the possibility of bifurcations in the number of evolutionary equilibria or in their stability properties generated by monetary policy.
