So the net result would be a $200 billion increase in the national debt. American taxpayers would then have to pay $2 billion a year in real interest on that extra national debt over the next 30 years, and then pay off or roll over the entire $200 billion.
首先，5000亿美元额外政府支出可以用税收增加额抵消3000亿，这笔税收增量来自更高的经济活跃度。因此净结果是国民债务水平将上升2000亿美元。美国纳税人因此必须在未来30年内为这笔增加的债务付出每年20亿美元的真是利息，然后偿付2000亿美元本金或将债务展期。