1. Professor, Management School, Tianjin Univ., Tianjin 300130, China.
2. Master, Business School of Hohai Univ., Nanjing 211100, China (corresponding author).
3. Professor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong, China.
4. Professor, Business School, Hohai Univ., Nanjing 211100, China.
5. Master, Management School, Tianjin Univ., Tianjin 300130, China.