Exports as a share of total U.S. production had increased dramatically since World War II, and more U.S. workers were exposed to the vagaries of the international marketplace.

• 第二次世界大战以来，作为美国生产总量的一部分，美国的出口额迅速增加，因而就有更多的美国工人受到国际市场变化的直接影响。