La concentration industrielle n'a cessé d'augmenter ces vingt dernières années. Cette concentration est présente autant chez les producteurs que chez les distributeurs. Par conséquent, analyser le pouvoir de marché est devenu primordial. La mesure du pouvoir de marché nécessite l'analyse...

In this paper, we explain the ambiguous impact of a rule of non-discrimination on the relationships between manufacturers and retailers. We show that such a rule has two conflicting effects on the Formation and the sharing of profits between upstream and downstream firms. We study these elements...

We present a methodology allowing to introduce manufacturers and retailers vertical contracting in their pricing strategies on a differentiated product market. We consider in particular two types of non linear pricing relationships, one where resale price maintenance is used with two part...

In this paper, we analyze how the upstream Bertrand competition is distorted when we take into account repetition of the interactions within a vertical relationship. We argue that, in a two-period setting, a downstream monopsonist may prevent an efficient producer to prey on a less efficient...