1. College of Economics, Shenzhen University, Shenzhen, Guangdong Province, People's Republic of China
2. Department of Statistics and Data Science, Southern University of Science and Technology, Shenzhen, Guangdong Province, People's Republic of China
3. Department of Statistics and Actuarial Science, The University of Hong Kong, Hong Kong, People's Republic of China
4. School of Statistics and Mathematics, Yunnan University of Finance and Economics, Kunming, Yunnan Province, People's Republic of China
5. Department of Mathematics, Statistics and Insurance, School of Decision Sciences, The Hang Seng University of Hong Kong, Hong Kong, People's Republic of China