1. School of Tourism and Culinary Science, Yangzhou University, Yangzhou, Jiangsu, China
2. Finance and Economics Department, College of Business, University of Jeddah, Jeddah, Saudi Arabia
3. Research Institute of Central Jiangsu Development, Yangzhou University, Yangzhou, Jiangsu, China
4. School of Geography Science, Nanjing Normal University, Nanjing, Jiangsu, China