Affiliation: | a Faculty of Business and Economics, University of Lausanne, Internef 538, CH-1015 Lausanne, Switzerland;b Department of Economics, University of Bern, Schanzeneckstrasse 1, CH-3007 Bern, Switzerland;c Department of Economics, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands;d Department of Economics, Bamberg University, Feldkirchenstraße 21, 96045 Bamberg, Germany |