I keep on hearing about the supply-side miracle associated with the the Reagan era tax cuts. What do changes in estimated potential versus actual output suggest?
Figure 1: Year-on-year growth rate of real GDP (blue), and of potential GDP (red), calculated as 4th differences of logged values. Dashed lines at effective dates for Economic Recovery Tax Act of 1981 and Tax Reform Act of 1986. Source: BEA, CBO.