Demand-Side Trickle-Down

Back in 1980, a central feature of President Reagan’s campaign was a thirty percent across-the-board cut in income tax rates. Once elected, he followed through with the 1981 tax cut, which closely resembled this campaign promise.

Those Reagan-era tax cuts were inspired by a combination of two factors. First, the very similar “Kennedy” tax cuts proposed by President Kennedy in 1963 and then passed posthumously in 1964. Interestingly, the conservative Senator Barry Goldwater and many other Republicans opposed this tax cut on the grounds that it would increase the budget deficit.

The second factor was the rise of supply-side economics, which argued that the stagflation of the 1970s needed to be addressed with one lever of policy focused on each problem: inflation needed to be tackled by tighter monetary policy; slow growth and high unemployment required cuts in marginal tax rates to increase the incentives to work, save, and invest. The great economist Arthur Laffer, with his Laffer Curve, posited that tax cuts may actually increase tax receipts. Why? Because after a certain point, higher tax rates deterred so much economic activity that they resulted in less revenue. By increasing economic growth, lower rates could increase revenues over time.

Both inflation and unemployment fell after implementing these policies and real GDP growth accelerated. But Reagan boosted defense spending and locked-in inflation escalators boosted government spending in the early 1980s…resulting in larger deficits initially. These deficits were then used as a cudgel to bash supply-side economic policies.

Reagan’s opponent in the 1980 primary, and eventually his Vice President, George H. W. Bush, had called his policies “voodoo economics.” Others derided them as “trickle-down,” a pejorative meant to make it seem like lower income groups only benefited from these policies because the “rich got richer.”