This paper investigates three hypotheses to account for the observed shifts in U.S. relative wages of less educated compared to more educated workers between 1967 and 1992: increased import competition, changes in the relative supplies of labor of different education levels and changes in...

This paper estimates relative differences in factor prices (and thus industry comparative cost differences) between the United States and each of eight country groups by relating differences in factor-use requirement and actual bilateral export/import ratios across industries. Predictions...