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Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1988

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1987

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1985

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1990

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1988

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1988

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1987

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1987

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1984

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1984

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1983

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1975

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1975

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1991

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1981

Evanston, IL: Northwestern University, Kellogg School of Management, Center for Mathematical Studies in Economics and Management Science, 1980