Institution: | (1) Swiss Banking Institute, University of Zurich, Plattenstrasse 32, 8032 Z?rich, Switzerland;(2) Department of Finance and Management Science, Norwegian School of Economics and Business Administration, Bergen, Norway;(3) Leeds University Business School and School of Mathematics, University of Leeds, Leeds, LS2 9JT, UK;(4) Swiss Federal Institute of Technology Zurich, Kreuzplatz 5, 8032 Z?rich, Switzerland |