Deardorff [Journal of International Economics 36 (1994) 167-175] offers an intuitively appealing test for factor price equality (FPE). He demonstrates that FPE is impossible if the set (i.e., lens) of points defined by regional factor abundance vectors does not lie within the set of points...

Mexico's experience before and after trade liberalization presents a challenge to neoclassical trade theory. Though labor abundant, it nevertheless exported skill-intensive goods and protected labor-intensive sectors prior to liberalization. Post-liberalization, the relative wage of skilled...