This paper evaluates the impact of a change in the market structure on nonlinear prices. Based on the entry of Free in France and the merger of Orange in Austria, it finds that neither the entry, nor the merger affects the access price of mobile telecommunications services. However, the entry in the French market has raised the unit price of mobile data services; contrary to the merger in the Austrian market. These results are driven by a bundling discount on the unit price which is lower following the entry; but higher following the merger. They are consistent with the fact that the entry of the fourth mobile operator in France has delayed the investment in new technologies; contrary to the merger from four to three operators in Austria.
