Basedow, Jürgen Keywords: Cartels and monopolies | Competition | Restrictive business practices | Mots clefs: Cartels et monopoles | Concurrence | Pratiques commerciales restrictives | ABSTRACT Jürgen Basedow, Professor at the Free University of Berlin, examines in this course the limitations of competition as established by private law: horizontal agreements or trusts, vertical restrictions on competition (agreements between companies of various economic levels on resale prices, on exclusive sales, on export prohibition…