1. Department of Economics & Finance, Southern Illinois University Edwardsville, Edwardsville, IL 62026-1102, USA
2. Department of Management, Technology and Economics, ETH Zürich, Zürich, Switzerland
3. Department of Economics, University of Pretoria, Pretoria 0002, South Africa
4. IPAG Business School, Paris, France
5. Swiss Finance Institute, c/o University of Geneva, Geneva, Switzerland