[1] Ho Chi Minh City Open Univ, Business & Econ Res Grp, Ho Chi Minh City, Vietnam
[2] Asia Univ, Dept Finance, Taichung, Taiwan
[3] Univ Sydney, Business Sch, Discipline Business Analyt, Sydney, NSW, Australia
[4] Erasmus Univ, Erasmus Sch Econ, Econometr Inst, Rotterdam, Netherlands
[5] Univ Complutense Madrid, Dept Econ Anal, Madrid, Spain
[6] Univ Complutense Madrid, ICAE, Madrid, Spain
[7] Yokohama Natl Univ, Inst Adv Sci, Yokohama, Kanagawa, Japan