We analyse how spatial disparities in innovation activities, coupled with migration costs, affect economic geography, growth and regional inequality. We provide conditions for existence and uniqueness of a spatial equilibrium, and for the endogenous emergence of industry clusters. Spatial...

We study the distribution of economic activity, as proxied by lights at night, across 250,000 grid cells of average area 560 square kilometers. We first document that nearly half of the variation can be explained by a parsimonious set of physical geography attributes. A full set of country...

We study the distribution of economic activity, as proxied by lights at night, across 250,000 grid cells of average area 560 square kilometers. We first document that nearly half of the variation can be explained by a parsimonious set of physical geography attributes. A full set of country...

Existence of phenomena such as unemployment and low earnings of the poorest social strata in both periods of recession and the economic boom, highlights the existence of root causes in society. Providing answers to the question: what are the causes and the solutions can be implemented to solve...

Existence of phenomena such as unemployment and low earnings of the poorest social strata in both periods of recession and the economic boom, highlights the existence of root causes in society. Providing answers to the question: what are the causes and the solutions can be implemented to solve...

Yes. We construct a measure of aggregate technology change, controlling for imperfect competition, varying utilization of capital and labor, and aggregation effects. On impact, when technology improves, input use falls sharply, and output may fall slightly. With a lag of several years, inputs...