1. Ph.D. Candidate, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong (corresponding author).
2. Associate Professor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong.
3. Professor, Dept. of Building and Real Estate, and Associate Dean, Faculty of Construction and Environment, Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong.
4. Lecturer, College of International Education, School of Continuing Education, Hong Kong Baptist Univ., Shek Mun, N. T., Hong Kong.