Entry costs vary dramatically across countries. To assess their impact we construct a model with endogenous entry and operation decisions by …rms and calibrate it to match the U.S. distribution of …firms by size. Higher entry costs lead to greater misallocation of productive factors and lower...

"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 reassess convergence of income and its determinants across countries using the dataset constructed by Klenow and Rodriguez-Clare (2005) and our updated version of the same data. Consistent with the literature, the ergodic distribution of output per worker features separate convergence clubs....

We analyze optimal discretionary monetary policy in an endogenous sticky prices model. Similar models with exogenous sticky prices can deliver multiple equilibria. This is a necessary condition for the occurrence of expectation traps (when private agents' expectations determine the equilibrium...

We present a model of endogenous total factor productivity which generates poverty traps. We obtain multiple steady-state equilibria for an arbitrarily small degree of increasing returns to scale. While the most productive firms operate across all the steady states, in a poverty trap less...