The introduction of immigration quotas in the 1920s fundamentally changed US migration policy. We exploit this policy change to estimate the effect of immigration on local economic growth and industry development. Our analysis demonstrates that areas with larger pre-existing communities of...

This Working Document provides an estimate of China's impact on the growth rate of resource-rich countries since its WTO accession in December 2001. The authors' empirical approach follows the logic of the differences-in-differences estimator. In addition to temporal variation arising from the...

This research documents that the growth rate of life expectancy over the 20th century decreased the growth rate of per capita GDP and the growth rate of population. Exploiting exogenous variation in life expectancy from mid-20th century medical advances (e.g., antibiotics), the analysis...

This paper examines the long-run effects on the spatial distribution of economic activity caused by historical shocks. Using variation in the potential damage intensity of the 1906 San Francisco Earthquake across cities in the American West, we show that more severely affected cities experienced...

This paper investigates the effects of a large temporary shock on the agglomeration of economic activity. Using variation in the potential damage intensity of the 1906 San Francisco earthquake across counties in the American West, we find that the earthquake persistently decreased various...