1. Professor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., ZS738, Hung Hom, Kowloon, Hong Kong.
2. Assistant Professor, Dept. of Economics and Finance, Hang Seng Management College, Shatin, New Territory, Hong Kong (corresponding author).
3. Research Associate, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., ZS738, Hung Hom, Kowloon, Hong Kong.
4. Associate Professor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., ZS738, Hung Hom, Kowloon, Hong Kong.