1. Bradley University, Peoria, IL, USA
2. Copenhagen Business School, Frederiksberg, Denmark
3. University of Paderborn, Germany
4. Neeley School of Business, Texas Christian University, Fort Worth, TX, USA
5. Freie Universität Berlin, Germany
6. Scheller College of Business, Georgia Institute of Technology, Atlanta, GA, USA
7. INSEAD, Fontainebleau, France