1. Division of Statistics, School of Economics, Shanghai University, Shanghai, China
2. Research Center of Financial Information, Shanghai University, Shanghai, China
3. Rush Alzheimer’s Disease Center, Rush University Medical Center, Chicago, Illinois, USA
4. Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
5. Department of Management Science and Engineering, School of Management, Shanghai University, Shanghai, China
6. Department of Information Management, School of Management, Shanghai University, Shanghai, China
7. Department of Mathematics, University College London, London, UK
8. Department of Marketing, School of Business, Hunan Normal University, Changsha, Hunan, China