[1] Univ Waterloo, Sch Accounting & Finance, Waterloo, ON N2L 3G1, Canada
[2] Univ Int Business & Econ, Sch Int Trade & Econ, Beijing, Peoples R China
[3] York Univ, Sch Adm Studies, Toronto, ON M3J 2R7, Canada
[4] Univ Hong Kong, Sch Econ & Finance, Hong Kong, Hong Kong, Peoples R China