This study reviews Mexico’s economic performance under NAFTA, focusing on the changes in major economic indicators, and particularly, employment and income before and after the inception of NAFTA. There have been a significant improvement in inflation, budget deficits, and exports and FDI, but not as successful as in the expansion of economic activity and employment during the post-NAFTA era. We find a source of Mexico’s economic problems today in a lack of its appropriate domestic development policy. We also draw some implications for Korea’s future trade policy from the experience of Mexico under NAFTA.