1. Assistant Professor, Dept. of Civil Engineering, Sharif Univ. of Technology, P.O. Box 11155-9313, Tehran, Iran.
2. Associate Professor, Economics of Sustainable Built Environment Lab, School of Building Construction/School of Civil and Environmental Engineering, Georgia Institute of Technology, 280 Ferst Dr., Atlanta, GA 30332-0680 (corresponding author).
3. Senior Lecturer, School of Civil Engineering, Univ. of Texas at Arlington, 416 S. Yates St., Arlington, TX 76010; formerly, Ph.D. Candidate, Economics of Sustainable Built Environment Lab, School of Building Construction, Georgia Institute of Technology, 280 Ferst Dr., Atlanta, GA 30332-0680.
4. Ph.D. Student, Economics of Sustainable Built Environment Lab, School of Building Construction, Georgia Institute of Technology, 280 Ferst Dr., Atlanta, GA 30332-0680.