This paper aims to shed light on the economic tools, as well as the legal-economic reasoning, which are used by different European antitrust authorities to assess the allegedly anticompetitive practices of a platform operating in a two-sided market (2SM). First of all, we show that despite the...

Il y a vingt ans Apple entamait avec le retour de Steve Jobs sa seconde vie. Google et Amazon étaient des start-up et Facebook n'existait pas. Vingt ans après, les GAFA font partie des entreprises les plus puissantes au monde. N'avons-nous pas fait preuve de naïveté face à ces jeunes...

This paper studies a liberalized postal market where entrants may offer end-to-end products or concentrate on one of the segments of the network. Absent effective bypass, entry does not appear to be a serious financial threat to the incumbent, even when the products are perfect substitutes. This...

This paper studies the optimal price structure in the postal sector when worksharing is available (e.g., for collection, sorting and transportation) and when the operator faces a break-even constraint. Users differ in opportunity and cost to engage in worksharing. We determine the optimal...

This paper studies a liberalized postal market where entrants may offer end-to-end products or concentrate on one of the segments of the network. Absent effective bypass, entry does not appear to be a serious financial threat to the incumbent, even when the products are perfect substitutes. This...