1. Lau Chor Tak Institute of Global Economics and Finance and Department of Economics, The Chinese University of Hong Kong, Hong Kong SAR, China
2. Laboratory of Artificial Intelligence and Digital Finance, Guizhou University of Finance and Economics, Guiyang, China
3. CUHK Business School, The Chinese University of Hong Kong, Hong Kong SAR, China
4. HKU Business School, The University of Hong Kong, Hong Kong SAR, China