Resumen
This paper analyzes the effects of NAFTA in the Mexican agriculture sector. For that purpose, some indicators of trade in key sectors related to food chain are shown, for México and US. We will try to prove the inefficiency of the regulating mechanisms designed by the Mexican state to strengthen the agrifood sector and thus guarantee food security. After twenty years, the results continue to register profound asymmetries between the three countries with results mostly unfavorable to Mexico.
Key words: NAFTA, agriculture, food security, agrifood systems, Mexico, USA.