My co-authored research suggests that cuts in individual income taxes lead to only slight increases in economic activity, yet produce a substantial net reduction in tax revenues. Governments can keep providing services to residents and businesses only if they increase other taxes to offset the losses from reduced personal income taxes. However, there is no clear evidence that other taxes are preferable to income taxes, or that cuts in spending can be achieved without harm to the economy.
-Dan Rickman, Regents Professor of Economics at Oklahoma State University (Source: http://bit.ly/1lWTQhE)