1. International Business School, Shaanxi Normal University, Xi’an, 710000 Shaanxi, China
2. Guizhou Key Laboratory of Big Data Statistical Analysis (No. [2019]5103), Guiyang, 550025 Guizhou, China
3. School of Big Data Application and Economics (Big Data Finance Institute), Guizhou University of Finance and Economics, Guiyang, 550025 Guizhou, China