Merger efficiencies provide the primary justification for why mergers of competitors may benefit consumers …. Surprisingly, there is little evidence that efficiencies can offset incentives to raise prices following mergers. We estimate the … merger of Miller and Coors breweries was expected to increase concentration and reduce costs. All else equal, the average …

of oligopoly concerns resulting from mergers. In this paper, we provide a critique of Bork's views on merger policy from …In The Antitrust Paradox, Robert Bork viewed most mergers as either competitively neutral or efficiency enhancing. In … his view, only mergers creating a dominant firm or monopoly were likely to harm consumers. Bork was especially skeptical …

policy towards mergers. I then discuss the types of data that one must collect in order to be able to perform an analysis of … is data on the relevant market pre and post merger. The second is data on the specific predictions of the government … agencies about the market post-merger. A key point of this article is to stress how weak an analysis of only the first type of …

estimating the price effects of mergers. We also describe how evidence from merger retrospectives can be used to evaluate the …The challenge of effective merger enforcement is tremendous. U.S. antitrust agencies must, by statute, quickly forecast … the competitive effects of mergers that occur in virtually every sector of the economy to determine if mergers can proceed …

Many experts speculate that U.S. antitrust policy towards horizontal mergers has been too lenient. We estimate the … appliance markets most affected by the merger to markets where concentration changed much less or not at all. We estimate price …