"We analyze optimal monetary policy in an endogenous sticky price model. Similar models with exogenous sticky prices can deliver multiplicity of equilibria. Multiplicity of equilibria is a necessary condition for expectation traps to explain the variation across time and countries of inflation...

We present a political economy theory of growth in which the government affects the growth rate both directly through public investments in infrastructure, and indirectly through the effect of taxation on learning by doing. Policy choices are made by a legislature consisting of representatives...