Some think that a trade agreement between a more developed and a less developed economy amounts to exploitation of the less developed economy's workers. It worked very well.
Mexican wages are still very low.
The average Mexican worker earns in a day what his or her Texan counterpart earns in an hour. But things are changing. Wages in the export sector are now 30 percent above rates in the domestic sector. In geographic areas where export industries are concentrated, unemployment is close to zero. Mexican export industries generally require higher skilled workers and are willing to pay for these skills.