A modern Keynesian government does not hesitate to increase spending in the face of a recession. But, in order to do that, it needs the high credibility and low debt that follow from having saved and repaid debt during the upswing.
让积极的反周期财政政策可行的办法是依靠现代预算规则。现代凯恩斯主义政府会毫不犹豫地在面临衰退时增加支出。但是，为了做到这一点，政府需要很高的信誉和低债务水平，而低债务水平来自经济繁荣期的储蓄和偿债。