Kellogg School of Management, Northwestern University,'98 to present
Professor of Managerial Economics and Decision Sciences

Fisher College of Business, The Ohio State University, '85 to '97 Associate Professor of Management Science and Industrial Engineering,

Institute for Mathematics and its Applications, University of Minnesota, Dec. '87/Jan. 88
Visiting Member

The Wharton School, University of Pennsylvania , Fall '88 & '89
Visiting Assistant Professor

Southern Methodist University, Feb. 1989
Visiting Scholar, Department of Computer Science

The Graduate School of Business, University of Chicago, Spring '91
Visiting Assistant Professor

The Sloan School, MIT, '92 - '93, Su '96
Visiting Associate Professor

Department of Decision Sciences, National University of Singapore, September '00
Cycle and Carriage Visiting Professor