Well, no. It's not a cause at all. If you make X dollars, and have an infinite amount of choices to spend that money on, and you end up speculating, then your speculating is the contributing cause to the financial crisis. Not the simple presence of money or additional money in your pocket which is completely independent of the tax cut itself. I agree with your premise that tax cuts do not necessarily lead to business investment, but you're going to struggle for 25 years yourself trying to prove tax cuts helped lead to the financial crisis. Even if the rich had 3% extra on top of what they would have already had it doesn't mean that they wouldn't have participated in the same shenanigans, or even at the same level. I don't think you could prove that tax cut money was involved in any more than a fraction of a percentage point in the overall sum total of the financial crisis. Which again, is a product of greed and corporatism, not a function of tax cuts. All you really are doing is here is getting in your stereotypical "Bush Bad" comment that you make in every thread you participate in, and it's simply a dishonest position to take.