1. Faculty of International Business; Heilbronn University; Heilbronn Germany
2. Darden School of Business; University of Virginia; Charlottesville Virginia U.S.A.
3. Department of Economics; University of Virginia; Charlottesville Virginia U.S.A.
4. Université Paris 1 Panthéon-Sorbonne; Centre d'Economie de la Sorbonne; Paris France