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...

This article presents the methods and preliminary findings from IMPALA, a database that systematically measures the character and stringency of immigration policies. Based on a selection of data for six pilot countries between 1990 and 2008, we document the variation of immigration policies...

This paper provides new evidence on migrant networks as determinants of the total size (scale) and skill structure of migration, using aggregate data from a recent migration boom to Spain. We draw upon McFadden (1984, 1422-1428) in order to develop and apply a three-level nested multinomial...

Immigration may impact income distribution both by affecting the skill composition of a country's residents, and, by changing relative factor supplies, its relative factor prices. We provide some background evidence on compositional factors but focus primarily on factor prices. We first consider...