[1] McGill Univ, Desautels Fac Management, Montreal, PQ H3A 1G5, Canada
[2] NYU, Leonard N Stern Sch Business, New York, NY 10012 USA
[3] Univ Hong Kong, Fac Business & Econ, Hong Kong, Hong Kong, Peoples R China
[4] Univ Warwick, Warwick Business Sch, Coventry CV4 7AL, W Midlands, England