(1965-1970) Law degree at K.U.Leuven; (1975) PhD at the K.U.Leuven; (1976) research visits to the Max Planck Institut für ausländisches und internationales Patent-, Urheber- und Wettbewerbsrecht, Münich; (1990-1991) and (1994-1995) holder of the Jean Monnet Chair at the University of Bonn, Zentrum für Europäisches Wirtschaftsrecht; (1998-1999) Jacques Delors Chair, Alma Universities (Liège, Hasselt, Aachen, Maastricht).

(since 1987) Professor at the K.U.Leuven, Faculty of Law (courses on European Economic Law and Belgian Commercial and Economic Law) and the Faculty of Economics and Applied Economics (courses on Introduction to the Law and Commercial and Company Law); Director of the Centre for European Economic Law and Research Centre for Consumer Law; (1989-1994) Professor at the College of Europe, Brugge "Introduction au droit des C.E." for students of the "dominante économique"); (until 1997) Co-ordinator of the Erasmus programme for the Faculty of Law; (since 1997) Director and Member of the Board of the Centre for Advanced Legal Studies (in charge of the LL.M. programme); Member of the Steering and Management Committee of the Leuven Centre for a Common Law of Europe.

(since 1987) Professor of European Law at the K.U.Nijmegen (the Netherlands); (since 1996) Co-ordinator for Competition Law in the Pallas Programme at the K.U.Nijmegen (post graduate degree in European Business Law).

(Since 1984) Member of the Brussels Bar; Partner, Liedekerke Wolters Waelbroek Kirkpatrick Advocaten, Brussels.