"North American Free Trade Agreement (1992 December 17)" . . "Canada" . . "Mexico" . . "Mexico." . "North American Free Trade Agreement" . . . . "United States. Congressional Budget Office." . . "Gross domestic product United States." . . "Canada," . . "Canada." . "Commerce." . . "United States" . . "United States." . . . . . . . . . . . . . . . . "The effects of NAFTA on U.S.-Mexican trade and GDP"@en . . . . . . . . . . . . "Gross domestic product." . .