Payment cards systems and two-sided markets: the MasterCard and American Express judgements
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Since the seminal papers by Rochet and Tirole, the payment card industry has represented an elected field of study for the economic features of multi-sided markets and their effects on both regulation and antitrust analysis. The recent judgements of the Uk High Court of Justice in "MasterCard" and of the Us Court of Appeals for the Second Circuit in "American Express" are particularly relevant since they are the first to concretely apply the economic theory of multi-sided markets into the payment card industry.