1. Research Institute of Economics & Management, Southwestern University of Finance and Economics, 55 Guanghua Cun Street, Chengdu, Sichuan 610074, China, , , Department of Real Estate, School of Design and Environment, National University of Singapore, 4 Architecture Drive, Singapore 117566
2. Department of Real Estate, School of Design and Environment, National University of Singapore, 4 Architecture Drive, Singapore 117566,
3. School of Business, SIM University, Clementi Road, Singapore 599491,