Defence date: 26 October 1993
Examining board: Prof. Pierre Dehez, Université Catholique de Louvain ; Prof. André Gerard-Varet, University of Aix-Marseille ; Prof. Alan Kirman, E.U.I., supervisor ; Prof. Stephen Martin, E.U.I. ; Prof. Alain Trannoy, University of Paris, Cergy-Pontoise