Preliminary: Not for Citation. Comments Welcomed. State Fiscal Substitution between the Federal Food Stamp program and AFDC, Medicaid, and SSI Howard Chernick * Oct. 8, 1999 *Department of Economics, Hunter College and the Graduate Center, City University of New York. Address: Econ. Dept., Hunter College, 695 Park Ave., NY, NY 10021. e-mail: howard.chernick@hunter.cuny.edu This paper was prepared for the United States Department of Agriculture Small Grant Conference, Oct. 14-15, 1999. The research was supported by a USDA small grant award through the Joint Center for Poverty Research of the University of Chicago and Northwestern. I would like to thank Jim Ohls, Don Parsons, and Elizabeth Powers for comments, and Kristin Mahrt for excellent research assistance. I would also like to thank Carole Trippe of Mathematic Policy