1. Professor, McWhorter School of Building Science, Auburn Univ., 216 M. Miller Gorrie Center, Auburn, AL 36849-5315.
2. Assistant Professor, Suleman Dawood School of Business, Lahore Univ. of Management Sciences, Lahore 54792, Pakistan (corresponding author).
3. Director, Business Development, Auxiliary Services, Auburn Univ., Auburn, AL 36849-5315.