At the University of Washington since 1969
Visiting professor at the University of Virginia, 1974
Assistant professor at Carnegie-Mellon University, 1964-1969
U.S. Bank of Washington Faculty Fellow, 1988-1996
Director of the Doctoral Program, 1990-1996
Chairman of the Department of Finance and Business Economics, 1981-1990
Editor of the Journal of Financial and Quantitative Analysis, 1987-1989
Determinants of risk in the stock market