1. Assistant Professor, Dept. of Real Estate and Construction, Univ. of Hong Kong, Pokfulam, Hong Kong (corresponding author).
2. Associate Professor, Faculty of Construction Management and Real Estate, Chongqing Univ., Chongqing 400045, China.
3. Professor, School of Construction Management and Engineering, Univ. of Reading, Reading RG6 6AW, U.K.
4. Research Fellow, School of Construction Management and Engineering, Univ. of Reading, Reading RG6 6AW, U.K.