This paper introduces several variations of the Eaton and Kortum (1999) model of technological change and characterizes their long run implications. Both exogenous and endogenous growth examples are studied

We provide a theoretical description of a process that is capable of generating growth and income convergence among economies, and where freer trade has persistent, positive effects on productivity, beyond the standard efficiency gains due to reallocation effects. We add to a standard Ricardian...

We review new theories of learning that posit specific, distinct roles for the learner or innovator and their intellectual environment. We consider applications to the dynamics of individual earnings over the life cycle, the diffusion of knowledge within an organization and firm dynamics, and...

This paper extends the work in Alvarez, Buera, and Lucas (2007) to a collection of open economies linked by trade flows. We model the technology of an economy as described by a probability distribution of available costs --– in the sense of labor or other resource requirements --– for...