1. School of Big Data Application and Economics, Guizhou University of Finance and Economics, Guiyang, China
2. Guizhou Key Laboratory of Big Data Statistics and Analysis, Guizhou University of Finance and Economics, Guiyang, China
3. New Structural Financial Research Center, Guizhou University of Finance and Economics, Guiyang, China
4. Faculty of Business and Law, University of Portsmouth, Portsmouth, UK
5. School of Foreign Languages, Guizhou University of Finance and Economics, Guiyang, China