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has been cited by the following article:

• TITLE: Collusion Sustainability with Multimarket Contacts: Revisiting HHI Tests

  AUTHORS: Edmond Baranes, François Mirabel, Jean-Christophe Poudou

  KEYWORDS: Collusion; Multimarkets; HHI

  JOURNAL NAME: Theoretical Economics Letters, Vol.2 No.3, August 2, 2012

  ABSTRACT: Our paper focuses on the relationship between market concentration and collusion sustainability in a framework of multimarket contacts. We consider two independent and symmetric markets in which a subset of firms are active in both markets. When firms are able to transfer market power from one market to another, firms have strong incentives to collude even in a highly competitive market. This result is relevant for competition policy since assessing market concentration using HHI index could be misleading in some situations.