TY - JOUR AU - Saez,Emmanuel AU - Slemrod,Joel B. AU - Giertz,Seth H. TI - The Elasticity of Taxable Income with Respect to Marginal Tax Rates: A Critical Review JF - National Bureau of Economic Research Working Paper Series VL - No. 15012 PY - 2009 Y2 - May 2009 UR - http://www.nber.org/papers/w15012 L1 - http://www.nber.org/papers/w15012.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 Joel Slemrod University of Michigan Business School 701 Tappan Street Room R5396 Ann Arbor, MI 48109-1234 Tel: 734/936-3914 Fax: 734-615-4323 E-Mail: jslemrod@umich.edu Seth Giertz University of Nebraska Dept. of Economics, CBA 368 P.O. Box 880489 Lincoln, NE 68588-0489 Tel: 402-472-7932 Fax: 402-472-9700 E-Mail: sgiertz2@unl.edu AB - This paper critically surveys the large and growing literature estimating the elasticity of taxable income with respect to marginal tax rates (ETI) using tax return data. First, we provide a theoretical framework showing under what assumptions this elasticity can be used as a sufficient statistic for efficiency and optimal tax analysis. We discuss what other parameters should be estimated when the elasticity is not a sufficient statistic. Second, we discuss conceptually the key issues that arise in the empirical estimation of the elasticity of taxable income using the example of the 1993 top individual income tax rate increase in the United States to illustrate those issues. Third, we provide a critical discussion of most of the taxable income elasticities studies to date, both in the United States and abroad, in light of the theoretical and empirical framework we laid out. Finally, we discuss avenues for future research. ER -