Institution: | 1. Department of Economics, University of Bern, Schanzeneckstrasse 1, P.O. Box 8573, CH-3001 Bern, Switzerland;2. Department of Economics, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands;3. Department of Economics, New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, United Arab Emirates |