Affiliation: | 1. Southwestern University of Finance and Economics and The Chinese University of Hong Kong, Shatin, NT, Hong Kong, Hong Kong (nhchan@sta.cuhk.edu.hk);2. Academia Sinica, Institute of Statistical Sciences, National Taiwan University, Taipei, 11529, Taiwan (cking@stat.sinica.edu.tw);3. Department of Statistics, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, Hong Kong (jacoblyb@gmail.com;4. cyyau@sta.cuhk.edu.hk) |