The Effect of Trade on the Demand for Skill: Evidence from the Interstate Highway System

Guy Michaels
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Guy Michaels: Department of Economics, LSE

The Review of Economics and Statistics, 2008, vol. 90, issue 4, pages 683-701

Abstract: The advent of the U.S. Interstate Highway System provides an interesting experiment, which I use to identify the labor market effects of reduced trade barriers. This highway network was designed to connect cities and border crossings and to serve national defense, and as an unintended consequence it crossed many rural counties. I find that these counties experienced an increase in trade-related activities, such as trucking and retail sales. By increasing trade, the highways raised the relative demand for skilled manufacturing workers in skill-abundant counties and reduced it elsewhere, consistent with the predictions of the Heckscher-Ohlin model. Copyright by the President and Fellows of Harvard College and the Massachusetts Institute of Technology.

Date: 2008
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