This paper shows that price rigidity evolves in an economy populated by imperfectly rational agents who experiment with alternative rules of thumb. In the model, firms must set their prices in face of aggregate demand shocks. Their payoff depends on the level of aggregate demand, as well as on...

In this paper I use novel micro data underlying the Mexican CPI to establish stylized facts about prices in the Mexican economy. I then analyze the implications and consistency of the empirical results for the degree of monetary non-neutrality generated in both time and state-dependent pricing...