[1] Macau Univ Sci & Technol, Sch Business, Taipa, Macau, Peoples R China
[2] Univ Western Australia, Dept Econ, Sch Business, Crawley, WA, Australia
[3] Univ Bucharest, Fac Business & Adm, Bucharest, Romania
[4] Romanian Acad, Inst Econ Forecasting, Bucharest, Romania
[5] Scottish Church Coll, Dept Econ, Kolkata, West Bengal, India
[6] Anhui Univ Finance & Econ, Sch Stat & Appl Math, Bengbu, Peoples R China