NAFTA was an agreement signed in 1992 between the United States, Canada, and Mexico to establish a free trade zone and eliminate barriers to trade and investment between the countries. It aimed to promote competition and allow free movement of goods, services, and capital. While NAFTA increased trade between the countries and benefited some businesses and economic elites, it also resulted in job losses in some industries and increased inequality and poverty in Mexico. There continues to be debate around its overall economic and social impacts.