[D-fendr]

Ok.. but how does Cain know for certain that prices will actually come down exactly equal to the corp. income tax amount?

[RobbyS]

He doesn’t. But probably he and his advisers have calculated that there is a fair level of probability that it will. Depends on his assumptions, does it not?

[rogue yam]

Ok.. but how does Cain know for certain that prices will actually come down exactly equal to the corp. income tax amount?

Any time you use the words "prices" and "exactly" in the same sentence you're doing it wrong.