[quote] little empirical evidence that rate changes, by themselves, either promote or reduce the availablity of capital or labor.[/quote]

This statement is just asinine. Rates change behavior…incentives and disincentives work. Small changes of the tax code are just too hard to tease out of all the other factors that go into the economy

If you tax labor at 100% you will get less labor then if you tax it at 90% and even less than if you tax it at 80% etc.

The same goes passive income and investing. Incentives work.