Agriculture, which in the 1800’s accounted for more than half of national income, has shrunk to just a few percent. Manufacturing employment, which accounted for perhaps a third of jobs or more before World War II, has shrunk dramatically.
农业在19世纪占国民收入的一半以上，现在已经缩减到只剩几个百分点了。制造业就业在二战前占全部就业的三分之一或以上，如今也已显著下降。比如在美国，制造业就业在全部劳动力中不到10%。所以，即使经济保守人士要求削减开支，还是有许多强大的力量在推动事情向相反方向发展。