[1] Temple Univ, Fox Sch Business, Dept Strateg Management, Philadelphia, PA 19122 USA
[2] Grenoble Ecole Management, F-38003 Grenoble 01, France
[3] York Univ, Schulich Sch Business, Toronto, ON M3J 1P3, Canada
[4] Vrije Univ Amsterdam, Fac Econ & Business, NL-1081 HV Amsterdam, Netherlands