1. School of Business and Tourism Management, Yunnan University, Kunming 650500, China
2. Research Center for Border Tourism, China Tourism Academy, Kunming 650500, China
3. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
4. Lancang-Mekong International Vocational College, Yunnan Minzu University, Kunming 650500, China