Jeffrey B. Liebman, Malcolm Wiener Professor of Public Policy, teaches courses in social policy, public sector economics, and American economic policy. In his research, he studies tax and budget policy, social insurance, poverty, and income inequality. Recent research has examined the impacts of government programs such as the Earned Income Tax Credit, Social Security, and housing vouchers. During the first two years of the Obama Administration, Liebman served at OMB, first as Executive Associate Director and Chief Economist and then as Acting Deputy Director. From 1998 to 1999, Liebman served as Special Assistant to the President for economic policy and coordinated the Clinton Administration's Social Security reform technical working group. Liebman received his BA from Yale University and his MA and PhD in economics from Harvard.