This article analyzes endogenous efficiency gains from mergers. It considers oligopolistic homogeneous good markets and … homogeneous good markets, all possible mergers generate efficiency gains, and that these are most significant when R&D spillovers … are very low or very high. Efficiency gains increase with the number of insiders and generally decrease with the number of …

. We show evidence that despite the guidelines, current EU regulatory practice contains no effective efficiency defence. We …. Parties have raised efficiency arguments only 21 times since 2004. In fact, the Commission appears slightly more likely than … the parties to raise efficiency arguments. Efficiency defence cases represent only 3% of all cases but 31% of Article 8 …

. Consequently, many antitrust agencies take into account the balancing effects of efficiency gains compared to anti …-competitive effects that may result from mergers and acquisitions. In order to appropriately consider efficiency claims in the merger … subject to confusing interpretation for two seasons: (i) there seems to be no clear indication of whether a claimed efficiency …