In their search for lower labor costs, many U.S. manufacturers have cast their eyesand their production lines as far as Hong Kong, South Korea and Japan. Now they have begun to look closer to home. Almost unnoticed, the dusty, teeming, and often decrepit towns just south of the 2,000-mile U.S.Mexican border are undergoing the quiet beginnings of what one U.S. textile maker says could be "a massive industrial program."
Since the Mexican government began encouraging "border manufacturing" little more than a year ago, 34 U.S. companies have come on down. In and around honky-tonk Tijuana, 17 miles from San Diego,...