This report analyzes the potential costs of a moderate U.S. national cap-and-trade policy that seeks to stabilize emissions at the level seen in the year 2000. Results indicate that the impacts of a moderate GHG policy on the United States would be minimal.
Ross, M.T., B.C. Murray , R.H. Beach, B.M. Depro. "State-Level Economic Impacts of a National Climate Change Policy." The Pew Center on Global Climate Change, White Paper, Apr 2008.