John P. Rust, Professor received his PhD in economics from MIT in 1983. He taught at the University of Wisconsin and Yale University before joining the Maryland faculty in 2001. His major research interests are numerical dynamic programming and retirement behavior. He has written papers on a broad range of topics including investment, Social Security and Medicare, the nuclear power industry, and auctions. He has been a Fellow of the Econometric Society since 1993. Publications include: "Stationary Equilibrium in a Market for Durable Assets;" Econometrica, 1985, "Optimal Replacement of GMC Bus Engines: An Empirical Model of Harold Zurcher'', Econometrica, 1987, "Using Randomization to Break the Curse of Dimensionality", Econometrica, 1997, and "How Social Security and Medicare Affect Retirement Behavior in a World with Incomplete Markets" (with Chris Phelan), Econometrica 1997.