He has also served as a senior economist at the White House Council of Economic Advisers. Phil received a BS degree with honors from Cornell University in 1985 and a PhD from Princeton University in 1991. He has been a member of the faculty at Wellesley since then. His research has largely been devoted to empirical examinations of the impact of government programs and social legislation on individuals' and firms' behavior. Topics include: (1) the impact of imperfect experience rating in the unemployment insurance system on firms' layoff behavior, (2) whether welfare recipients move between states because of differences in welfare generosity, and (3) the impact of abortion legalization on fertility behavior. HELEN LEVY, PH.D.