On November 2 the Tennessee legislature will convene a special session to debate reform of the state tax system. The center of the controversy is whether Tennessee should adopt a personal income tax, as proposed by Gov. Don Sundquist, to close an estimated $400 million budget shortfall. This study finds that a personal income tax in Tennessee would likely have two negative economic effects. First, an income tax would almost certainly reduce economic growth and job creation in the state. The absence of an income tax in Tennessee gives Tennessee a large competitive advantage over other states with which it competes for jobs and businesses. We find, for example, that Kentucky, a state very similar to Tennessee except that it has an income tax,...