Affiliation: | (1) University of Tunis, Institut Supérieur de Gestion, 41, rue de la liberté, Cité Bachoucha, 2000 Le Bardo, Tunis, Tunisia, TN;(2) University of Geneva, Department of Econometrics, 40 Bd du Pont d'Arve, CH-1211 Geneva 4, Switzerland (email: jaya.krishnakumar@metri.unige.ch), CH;(3) University of Tunis, Faculté des Sciences Economiques et de Gestion, Campus Universitaire, Boulevard 7 Novembre, 1040, Tunis, Tunisia, TN |