The virtue of such a framework is to take into account the impact of temporarily weaker output on fiscal outcomes. Thus, a deficit is acceptable when it results from abnormally low tax revenues, but not when revenues are at their normal level.
这一框架的优点是考虑了暂时性产出萎靡对财政结果的影响。因此，如果赤字来自反常低的税收收入，那么它是可接受的，但如果收入属于正常水平，那么赤字是不可接受的。