Although the recently enacted two-year stimulus package includes a total of $800 billion of tax reductions and increased government spending, it would be wrong to think that this will add anything close to $400 billion a year to GDP in each of the next two years. Most of the tax reductions will be saved by households rather than used to finance additional spending.
近期，美国政府推出总额达到8000亿美元两年经济刺激方案，其中包括减税和增加政府支出，如果认为两年内每年会对GDP有4000亿美元贡献的话，那就错了。原因是美国家庭将会把由于所得税下降的增加的收入存起来，而不是用来消费。