Mark Duggan is the Trione Director of SIEPR and the Wayne and Jodi Cooperman Professor of Economics at Stanford University. He received his B.S. and M.S. degrees in Electrical Engineering at M.I.T. in 1992 and 1994, respectively, and his Ph.D. in Economics from Harvard University in 1999. Professor Duggan's research focuses on the health care sector and also on the effects of government expenditure programs such as Social Security, Medicare, and Medicaid on the behavior of individuals and firms.