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## Committee Chairs

#### Co-chair Lars Peter Hansen, University of Chicago

*Homer J. Livingston Distinguished Service Professor in Economics.*

*Ph.D., University of Minnesota, 1978.* Co-winner of the Frisch Prize Medal, 1984; John Simon Guggenheim Fellow, 1996; Faculty Award for Excellence in Graduate Teaching, 1998; Member, National Academy of Sciences, 1999.

*Research:* Time series econometrics; quantitative analysis of dynamic equilibrium models; asset pricing.

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#### James J. Heckman, University of Chicago

*Henry Schultz Distinguished Service Professor in Economics*

*Ph.D., Princeton University, 1971. *John Bates Clark Medal Winner, 1983; Member, National Academy of Sciences since 1992; Nobel Prize in Economic Sciences, 2000. Director, Economics Research Center, Department of Economics; and Director, Center for Social Program Evaluation, Harris Graduate School of Public Policy Studies since 1973.

*Research:* Evaluation of social programs; econometric models of discrete choice and longitudinal data; the economics of the labor market; alternative models of the distribution of income; public economics; regulation and policy reform of income inequality; the economics of the life cycle of skill formation; hedonic models and pricing of heterogeneous goods and characteristics; heterogeneity in general equilibrium models.

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#### Co-chair Kenneth Judd, Hoover Institution

*Paul H. Bauer Senior Fellow at the Hoover Institution on War, Revolution and Peace .*

*Ph.D., University of Wisconsin, 1980. * Alfred E. Sloan Fellowship, 1985. Fellow of the Econometric Society; Elected, American Academy of Arts and Sciences, 2003.

*Research:* Economics of taxation, tax policy, antitrust issues, imperfect competition, and mathematical economics and developing computational methods for economic modeling.

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#### Co-chair Sven Leyffer, Argonne National Laboratory

*Scientist, Mathematics and Computer Science Division*

*Ph.D., University of Dundee, 1994.* Vice-chair INFORMS Optimization Society, 2004; Program Director, SIAM Activity Group on Optimization, 2004.

*Research:* Mathematical Programs with Equilibrium Constraints, Large Scale Nonlinear Programming, Mixed Integer Nonlinear Programming, Branch-and-bound for Mixed Integer Quadratic Programming

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#### Todd Munson, Argonne National Laboratory

*Scientist, Mathematics and Computer Science Division*

*Ph.D., University of Wisconsin, 2000.* Enrico Fermi Scholar, 2000. Beale-Orchard-Hayes Prize, 2003.

*Research:* Algorithms and applications of optimization and complementarity. Utilizing constrained nonlinear optimization techniques to compute mountain passes, critical points where the Hessian has exactly one negative eigenvalue. Application of optimization to the r-refinement problem, a large nonlinear, nonconvex, optimization problem. Special purpose algorithms for solving support vector machine and mesh shape-quality optimization problems.

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#### Peter E. Rossi, University of Chicago

*Joseph T. and Bernice S. Lewis Professor of Marketing and Statistics.*

*Ph.D., University of Chicago, Graduate School of Business, 1984.* Arthur Kelley Faculty Prize, 2000.

*Research Interests*: Marketing: Brand Choice, Target Marketing, Price Promotions, Consumer Heterogeneity, Couponing, Search Theory, Direct Marketing. *Econometrics*: Hypothesis testing in systems of equations, non-nested hypothesis-testing procedures, Bayesian methods, limited dependent variable models, non-parametric time series methods.

Microeconomics: cost and production economics, dynamic factor demand, and demand analysis applied to individual consumer expenditure data.

#### Karl Schmedders, Kellogg School of Management, Northwestern University

*Associate Professor of Managerial Economics and Decision Sciences. *

*Ph.D., Stanford University, 1996*. L.G. Lavengood Professor of the Year, 2002.

Research Interests: Computational Economics, General Equilibrium Theory, Asset Pricing, Portfolio Choice

#### Che-Lin Su, University of Chicago Graduate School of Business

*Assistant Professor, Operations Management.*

*Ph.D., Stanford University, 2005*.

Research Interests: Computational economics; mathematical programming methods for structural estimation, optimal income taxation, executive compensation design and dynamic principal-agent problems.

#### Greg Thain, University of Wisconsin

#### Stephen J. Wright, University of Wisconsin

*Professor, Computer Sciences Department.*

*Ph.D., University of Queensland, Australia, 1984*.

Research Interests: Algorithms for nonlinear optimization Interior-point methods. Optimization software: PCx (linear programming), OOQP (convex quadratic programming). Applications of optimization to cancer radiotherapy, process control, statistics, weather forecasting, signal processing, computational biology, and other areas. Parallel optimization algorithms: Design and implementation

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