1. Assistant Professor, College of Public Administration, Zhejiang Univ. of Finance and Economics, Hangzhou 310018 China.
2. Associate Professor, Dept. Public Policy, City Univ. of Hong Kong, Kowloon, Hong Kong Special Administrative Region, 83 Tat Chee Ave., Kowloon Tong, Kowloon, Hong Kong Special Administrative Region (corresponding author).
3. Associate Professor, Dept. Real Estate and Construction, Univ. of Hong Kong, Pokfulam, Hong Kong Special Administrative Region.