1. Department of Architectural Engineering, United Arab Emirates University, Al Ain, UAE;
2. Nicholas R. Petry Professor of Construction Engineering and Management, Department of Civil, Environmental, and Architectural Engineering, University of Colorado at Boulder, Boulder, CO, USA;
3. W. Edwards Deming Professor of Management, Lockheed Martin Engineering Management Program, University of Colorado Boulder, Boulder, CO, USA;
4. Terrell-McDowell Endowed Chair of Construction Engineering and Project Management, Department of Civil Engineering, University of Kentucky, Lexington, KY, USA