This paper analyses the effects of mergers on price and welfare in markets facing congestion and derives conditions under which a merger is consumer welfare improving, even in the absence of marginal cost savings. In our context a merger basically has two effects. First, it obviously increases...

This paper models the behaviour of a Competition Authority (CA) that takes into consideration alternative future mergers when deciding whether to approve a current merger notification. The result is a more stringent CA that demands higher merger-efficiencies than the ones needed to restore...