1. Shenzhen Research Institute of the Hong Kong Polytechnic University, Shenzhen 518057, China
2. Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China
3. School of Public Policy and Administration, Chongqing University, Chongqing 400044, China
4. College of Professional and Continuing Education, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China