Affiliation: | (1) Department of Economics, Queen's University of Belfast, Belfast BT/INN, Northern Ireland (e-mail: j.jin@qub.ac.uk), IE;(2) Ecole Superieure de Commerce de Paris (ESCP-EAP), 79 av. de la République, F-75543 Paris Cedex 11, France (e-mail: troege@escp-eap.net), FR |