Marco Plankensteiner co-authored the French chapter of Getting the Deal Through – Vertical Agreements 2014, about "Increased Scrutiny of Most Favoured Nation Clauses in Vertical Agreements." MFN clauses in the context of vertical agreements are, strictly speaking, most-favoured-customer clauses and consist essentially in arrangements between suppliers and distributors whereby the supplier grants the distributor a price that will not be less favourable than the prices granted to its other customers. From this concept different structures of MFN clauses have emerged, detailed by the authors in this article.