1. Associate Professor, School of Mechanical, Aerospace, and Civil Engineering, Univ. of Manchester, Pariser Bldg., Manchester M1 7JR, UK. ORCID: .
2. Associate Professor, Research School of Management, ANU College of Business and Economics, Australian National Univ., 26 Kingsley St., Acton, ACT 2601, Australia (corresponding author).
3. Professor Emeritus, Dept. of Construction Economics and Management, Univ. of Cape Town, Private Bag, Rondebosch, Cape Town 7701, South Africa.
4. Associate Professor, Dept. of Construction Management, Tsinghua Univ., Beijing 100084, PR China.