Modern growth theory puts invention on the center stage. Inventions are created by individuals, raising the question: can we increase number of inventors? To answer this question, we study the causal effect of M.Sc. engineering education on invention, using data on U.S. patents’ Finnish...

What are the consequences of resource-based regional specialization, when it persists over a long period of time? While much of the literature argues that specialization is beneficial, recent work suggests it may be costly in the long run, due to economic or political reasons. I examine this...

Transition economies have an initial condition of high human capital relative to GDP per capita, giving them high growth potential. In the model, at a good equilibrium a large number of children of well-educated parents take advantage of their family backgrounds and invest substantially in their...

Estimates of the effect of education on GDP (the social return to education) have been hard to reconcile with micro-evidence on the private return. We present a simple explanation that combines two ideas: imperfect substitution between worker types and endogenous skill-biased technological...

This Paper develops a model of economic growth and activity locating endogenously on a 3-dimensional featureless global geography. The same economic forces influence simultaneously growth, convergence, and spatial agglomeration and clustering. Economic activity is not concentrated on discrete...

We develop a tractable dynamic model of productivity growth and technology spillovers that is consistent with the emergence of real world empirical productivity distributions. Firms can improve productivity by engaging in in-house R&D, or alternatively, by trying to imitate other firms’...