The paper provides evidence of the effects of changes in transport costs on the geographic concentration of industries. The analysis uses micro-level commodity flow data and micro-geographic plant-level data to construct industry-specific ad valorem trucking rates and continuous measures of...

Using a longitudinal micro data file of manufacturing plants (1974 to 1999), this study tests the relationship between trade and industrial specialization experienced by regional manufacturing economies. Consistent with trade driven by comparative advantage, the analysis demonstrates that export...

Using pooled Census of Population data for 242 metropolitan areas, this paper evaluates the link between long-run employment growth and the supply of different types of skilled labor. It also examines factors related to the growth of a particular type of skilled labor—workers in science...