1. School of Geography and Planning, Sun Yat-sen University, Guangzhou, China
2. School of Urban & Regional Science, East China Normal University, Shanghai, China
3. School of Business, Guangdong University of Foreign Studies, Guangzhou, China
4. Guangdong Provincial Key Laboratory of Urbanization and Geo-Simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou, China