How Smoking, Drugs, and Obesity Affect Education, Using Genes as Instruments Edward C. Norton Professor, Department of Health Management and Policy, and Professor, Department of Economics University of Michigan Euna Han Post-doctoral Fellow, Institute for Health Research and Policy University of Illinois at Chicago December 2008 Please address correspondence to: Edward C. Norton Department of Health Management and Policy M3108 SPH II 109 S. Observatory St., Room M3108 University of Michigan Ann Arbor, MI 48019-2029 USA Tel: 734-615-5738 Fax: 734-764-4338 E-mail: ecnorton@umich.edu Keywords: Education, genetics, smoking, drinking, Add Health