Joseph Krislov is a professor in the Department of Economics, College of Business and Economics, at the University of Kentucky, John Mead is a professor in the Department of Economics, at the University of Louisville.
They are indebted to S. Sidney Ulmer, Robert Stroup, and Virgil Christian at the University of Kentucky for assistance in the preparation of this article. Sokhen Dey, a graduate student at the University of Louisville, supervised the data processing.