"[E]conomic theory is unambiguous that holding taxes constant and reducing marginal rates will increase growth. But it is important to understand that this effect is neither large nor instantaneous. At best, it will raise the long-term trend rate of growth by perhaps tenths of a percent. With compounding, the effect can eventually be large. But the idea that tax reform will jump-start an economy suffering from the after-effects of a cyclical downturn is nonsense," – Bruce Bartlett, on Rommey's economic "plan".
For more on the flim-flam, see here.
The Dish 