specializes in the study of tax and transfer programs for poor families.  Her work examines the effects of various tax and transfer programs on labor supply, family formation, poverty and inequality.  She has written numerous papers about impacts of the U.S. cash welfare program (formerly known as Aid to Families with Dependent Children [AFDC], now Temporary Assistance for Needy Families).  She also is an expert on the effects of the Earned Income Tax Credit and presented her work to President Bush's Advisory Panel on Tax Reform.  This work has been published in various economics journals, including the American Economic Review, Econometrica, the Review of Economics and Statistics, and the Journal of Public Economics.  Professor Hoynes has research affiliations with the National Bureau of Economic Research, the Institute for Fiscal Studies, the National Poverty Center, and the Institute for Research on Poverty.  She has received grants from the National Institute on Aging, the National Institute for Child Health and Human Development, the U.S. Department of Agriculture, and the Joint Center for Poverty Research.  She received her Ph.D. from Stanford University.