[1] Washington Univ, John M Olin Sch Business, St Louis, MO 63130 USA
[2] American Univ, Kogod Sch Business, Washington, DC 20016 USA
[3] Texas A&M Univ, Mays Business Sch, College Stn, TX 77843 USA
[4] Univ Nevada, Coll Business, Las Vegas, NV 89154 USA