Isivumelwano Sokuhweba Ngokukhululekile saseNyakatho Melika phakathi kwe-United States, Mexico kanye neCanada saqala ukusebenza eminyakeni engu-20 edlule kuleli sonto ngo-January 1, 1994. Isivumelwano esikhulu sohwebo sasayinwa saba umthetho nguMongameli uBill Clinton phakathi kwesithembiso esikhulu sokuthi sizokhuphula amaholo, sidale. imisebenzi ngisho nokwenza ngcono amazinga ezempilo kanye nokuphepha kwemvelo. Amakhulu ezinkulungwane zemisebenzi yase-US anyamalele njengoba izinkampani zifuna abasebenzi abahola kancane eMexico. Phakathi naleso sikhathi, i-NAFTA ikhiqize ubumpofu obengeziwe eMexico, iphoqa izigidi zezakhamizi ukuthi zithuthele e-United States ziyofuna umsebenzi. Sikhuluma noLori Wallach, umqondisi wePublic Citizen's Global Trade Watch kanye nombhali wombiko omusha, "NAFTA at 20."
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