TY - JOUR AU - Gordon,Roger H. AU - Cullen,Julie Berry TI - Taxes and Entrepreneurial Activity: Theory and Evidence for the U.S. JF - National Bureau of Economic Research Working Paper Series VL - No. 9015 PY - 2002 Y2 - June 2002 UR - http://www.nber.org/papers/w9015 L1 - http://www.nber.org/papers/w9015.pdf N1 - Author contact info: Roger H. Gordon Department of Economics 0508 University of California, San Diego 9500 Gilman Drive, Dept. 0508 La Jolla, CA 92093 Tel: 858/534-4828 Fax: 858/534-7040 E-Mail: rogordon@ucsd.edu Julie Berry Cullen Department of Economics - 0508 University of California, San Diego 9500 Gilman Drive La Jolla, CA 92093-0508 Tel: 858/822-2056 Fax: 858/534-7040 E-Mail: jbcullen@ucsd.edu AB - Entrepreneurial activity is presumed to generate important spillovers, potentially justifying tax subsidies. How does the tax law affect individual incentives? How much of an impact has it had in practice? We first show theoretically that taxes can affect the incentives to be an entrepreneur due simply to differences in tax rates on business vs. wage and salary income, due to differences in the tax treatment of losses vs. profits through a progressive rate structure and through the option to incorporate, and due to risk-sharing with the government. We then provide empirical evidence using U.S. individual tax return data that these aspects of the tax law have had large effects on actual behavior. ER -