Supply-side economics is a school of macroeconomics that argues that economic growth can be most effectively created by lowering barriers for people to produce (supply) goods and services as well as invest in capital.
In 2003, Alan Murray, who at the time was Washington bureau chief for CNBC and a co-host of the television program Capital Report, declared the debate over supply-side economics to have ended "with a whimper" after extensive modeling performed by the
Congressional Budget Office (CBO) predicted that the revenue generating effects of the specific tax cuts examined would be, in his words, "relatively small."
For years, advocates of supply-side economics have justified repeated calls for tax cuts for high earners by arguing the cuts will pay for themselves by dramatically boosting economic growth and thus tax revenues.
They have just as adamantly insisted that if only Capitol Hill's official arbiter of the budgets, the Congressional Budget Office, would evaluate tax cuts through the prism of "dynamic scoring" -- which projects the macroeconomic impact of tax cuts as well as the lost revenues they produce -- their point of view would be vindicated.
Well, CBO has done just that with President Bush's budget, and guess what?
In a report prepared under the supervision of a supply-side economist handpicked by the White House and published last week, CBO concluded the president's budget would make long-term budget deficits worse rather than better.
It's taking a while to sink in, but that CBO document pretty much pronounced the death of the supply-side economics.
The Death of Supply-Side Economics (printable version)