1. Business and Tourism School, Sichuan Agricultural University, Chengdu 611130, China
2. College of Business Administration, Chongqing Three Gorges University, Chongqing 404100, China
3. School of Literature and Journalism & Communication, Xihua University, Chengdu 610039, China
4. College of Forestry, Sichuan Agricultural University, Chengdu 611130, China