Major Publications:

1. "Panel Estimates of a Two-Tiered Earning Frontier," (with S. Polachek), Journal of Applied Econometrics (1996).
2. "A Two-Tiered Earnings Frontier Estimation of Employer and Employee Information in the Labor Market," (with S. Polachek) Review of Economics and Statistics (May 1987).
3. "On Capital-Land Substitution in Urban Housing Production," (with R. Fare), Journal of Urban Economics, 17 (1985).
4. "A Theoretical and Empirical Analysis of the Highway Speed-Volume Relationship," (with R. Fare and S. Grosskopf), Journal of Urban Economics, 12 (1982).
5. "A Model of Unemployment Duration with Variable Search Intensity," Review of Economics and Statistics (November 1981).