Many multinational US companies have located plants in Mexico as part of their overall production process, which is closely tied to inputs sourced domestically. Indeed, manufacturing relations between the US and Mexico are such that some 40% of the value added in Mexican exports to the US is actually of US origin.
自NAFTA启动以来，墨西哥制造业出口增长了十倍，如今80%的出口流向美国。许多美国跨国公司在墨西哥设厂作为整体生产链的一部分，与国内投入品紧密相连。事实上，美国和墨西哥的制造关系是如此紧密，40%的墨西哥对美国出口品增加值实际上源自美国。