TY - JOUR AU - Babiker,Mustafa H. AU - Metcalf,Gilbert E. AU - Reilly,John TI - Tax Distortions and Global Climate Policy JF - National Bureau of Economic Research Working Paper Series VL - No. 9136 PY - 2002 Y2 - August 2002 UR - http://www.nber.org/papers/w9136 L1 - http://www.nber.org/papers/w9136.pdf N1 - Author contact info: Mustafa Babiker MIT Joint Program on the Science and Policy of Global Cambridge, MA 02139 Gilbert E. Metcalf Room 3221 Department of the Treasury Washington, DC 20220 1500 Pennsylvania Ave., NW Tel: 202-622-0173 E-Mail: gilbert.metcalf@tufts.edu John Reilly Joint Program on the Science and Policy of Global Change Massachusetts Institute of Technology 1 Amherst St. (Bldg. E40) Cambridge, MA 02139 E-Mail: jreilly@mit.edu AB - We consider the efficiency implications of policies to reduce global carbon emissions in a world with pre-existing tax distortions. We first note that the weak double-dividend, the proposition that the welfare improvement from a tax reform where environmental taxes are used to lower distorting taxes must be greater than the welfare improvement from a reform where the environmental taxes are returned in a lump sum fashion, need not hold in a world with multiple distortions. We then present a large-scale computable general equilibrium model of the world economy with distortionary taxation. We use this model to evaluate a number of policies to reduce carbon emissions. We find that the weak double dividend is not obtained in a number of European countries. Results also demonstrate the point that the interplay between carbon policies and pre-existing taxes can differ markedly across countries. Thus one must be cautious in extrapolating the results from a country specific analysis to other countries. ER -