The mere ability to postpone taxes may not seem all that important, but its consequences are enormous. - Harvey S. Rosen

It may be worthwhile to spend a few million dollars to determine the efficacy of program that would involve spending billions of dollars.

If it makes sense to transfer income from rich to poor people within a generation, why shouldn't we transfer income from rich to poor generations?

It must be emphasized that free ridership is not a fact; it is an implication of the hypothesis that people maximize a utility function that depends only on their own consumption of goods.