1. Director, Construction Industry Research and Policy Center, College of Business Administration, and Research Professor, Civil and Environmental Engineering, Univ. of Tennessee, 2000 Lake Ave., Knoxville, TN 37996 (corresponding author).
2. Director, Administration, Construction Research and Policy Center and Professor Emeritus, Dept. of Economics, College of Business Administration, Univ. of Tennessee, 2000 Lake Ave., Knoxville, TN 37996.
3. Director Emeritus, Construction Industry Research and Policy Center and Adjunct Professor, Dept. of Economics, College of Business Administration, Univ. of Tennessee, 2000 Lake Ave., Knoxville, TN 37996.