1. School of Business, Sun Yat-sen University, Guangzhou, Guangdong, China
2. School of Tourism Management, South China Normal University, Higher Education Mega Center, Guangzhou, China
3. School of Hotel and Tourism Management, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
4. School of Marxism, Sun Yat-sen University, Guangzhou, Guangdong, China