TY - JOUR AU - Saez,Emmanuel TI - Optimal Progressive Capital Income Taxes in the Infinite Horizon Model JF - National Bureau of Economic Research Working Paper Series VL - No. 9046 PY - 2002 Y2 - July 2002 UR - http://www.nber.org/papers/w9046 L1 - http://www.nber.org/papers/w9046.pdf N1 - Author contact info: Emmanuel Saez Department of Economics University of California, Berkeley 530 Evans Hall #3880 Berkeley, CA 94720 Tel: 510/642-4631 Fax: 510/642-6615 E-Mail: saez@econ.berkeley.edu AB - This paper analyzes optimal progressive capital income taxation in an infinite horizon model where individuals differ only through their initial wealth. We show that, in that context, progressive taxation is a much more powerful and efficient tool to redistribute wealth than linear taxation on which previous literature has focused. We consider progressive capital income tax schedules taking a simple two-bracket form with an exemption bracket at the bottom and a single marginal tax rate above a time varying exemption threshold. Individuals are taxed until their wealth is reduced down to the exemption threshold. When the intertemportal elasticity of substitution is not too large and the top tail of the initial wealth distribution is infinite and thick enough, the optimal exemption threshold converges to a finite limit. As a result, the optimal tax system drives all the large fortunes down a finite level and produces a truncated long-run wealth distribution. A number of numerical simulations illustrate the theoretical result. ER -