Affiliation: | 1.School of Economics and Trade, Guangdong University of Foreign Studies, Guangzhou, 510006, China ;2.Department of Accounting and Finance, Lancaster University, Lancaster, LA1 4YW, UK ;3.School of Mathematics and Statistics, Guangdong University of Foreign Studies, Guangzhou, 510006, China ;4.School of Business, Guangdong University of Foreign Studies, Guangzhou, 510006, China ; |