Assuming that continued subnormal output casts a 10% shadow on future potential output levels, that extra $150 billion of production means that in the future, when the economy has recovered, there will be an extra $15 billion of output –&nbsp;and an extra $5 billion of tax revenue. Governments will not have to raise taxes to finance extra debt taken on to fund fiscal boosts.
假设持续低于正常水平的产出会导致未来潜在产出水平下降10%，那么这1 500亿美元新增产量意味着在未来经济实现复苏时，产出会增加150亿美元，税收会增加50亿美元。政府将不必通过增税来为财政刺激所造成的债务融资。相反，在长期，扩张性财政政策带来的供给端潜在产出的提振很可能不但能够偿还因提振支出而产生的额外债务，而且能够在不影响预算平衡的前提下创造未来减税空间。