Right wing tax cut psychos love to claim there's some direct correlation between tax cuts and economic growth. They give a few examples such the 20's, and the JFK and Reagan tax cuts. Bush is now claiming the same. What absolute nonsense.
For there to be a correlation between tax cuts and economic growth, these tax cut nuts have to be able to prove that growth is unlikely without tax cuts... and that tax increases will stifle growth.
According to
http://www.nber.org/cycles.html the organization that has the most credibility in determining when a recession starts or stops.... there have been some 21 recessions in the last century. Somehow it seems in the vast majority of the cases... there have been recoveries WITHOUT any tax cuts. The JFK tax cuts were passed when the economy was already out of a recession for some three years. NBER considers the expansion of the 60's to be a wartime expansion. Reagan passed his irresponsible ERTA tax cuts in August 81 yet economy did not seem to care these tax cuts were on the way and had sunk into recession the month before. The economy did not come out of the Reagan Recession until Nov 82.... but what's this? Just 2 months before Reagan signed into law one of the biggest tax INCREASES (constant dollars) since WWII. So too with Clintons 93 tax hikes. There's no evidence the economy sunk into recession as the GOP claimed it would. Yet the lie is back and repeated ad nauseum.
So now the economy has shown some growth... at least for a few quarters. No doubt the tax cuts had some minor demand-side effects. While Bush is congratulating himself the simple truth is that the economy pulled itself out of recession for reasons having little to do with Bush's tax cuts. I'm sure Bush even knows the business cycle was on his side and his tax cuts were designed to send home the bacon to his rich constituents, NOT to have much effect on growth. But he'll take credit anyway simply because it's ONLY way to sell tax cuts to the wealthy is to pretend they benefit us all.
So when we hear our Rightist friends crowing about how Bush's tax cuts saved the economy... just remember it's just the Big Lie the Right can't live without.