Tax Cuts Don't Boost Revenues If there's one thing that Republican politicians agree on, it's that slashing taxes brings the government more money....If there's one thing that economists agree on, it's that these claims are false. We're not talking just ivory-tower lefties. Virtually every economics Ph.D. who has worked in a prominent role in the Bush Administration acknowledges that the tax cuts enacted during the past six years have not paid for themselves--and were never intended to. Harvard professor Greg Mankiw, chairman of Bush's Council of Economic Advisers from 2003 to 2005, even devotes a section of his best-selling economics textbook to debunking the claim that tax cuts increase revenues.