Despite the continuing US hospital merger wave, it remains unclear how mergers change, or fail to change, hospital … behavior and performance. We open the "black box" of hospital practices through a mega-merger between two for-profit chains …. Benchmarking the merger's effects against the acquirer's stated aims, we show they achieved some of their goals, harmonizing …

, we present a method for measuring undisclosed merger activity that relies on financial accounting reporting requirements …

that the tax losses and credits of acquired firms likewise exerted no impact on merger activity. Though the use of such …

undisputed. Deregulation has proceeded in three ways: (i) eased rate setting restrictions; (ii) simplified merger applications …

merger was 1.1 percentage points lower, during the five-year period centered on the merger, than that of carriers not … involved in merger. Almost all of this cost reduction appears to have been passed on to consumers. Part of the cost reduction …

Merger efficiencies provide the primary justification for why mergers of competitors may benefit consumers … merger of Miller and Coors breweries was expected to increase concentration and reduce costs. All else equal, the average …

in the Horizontal Merger Guidelines. Through a model of enforcement, we find that agencies challenge mergers they expect …

mergers. We then simulate a representative set of U.S. mergers in order to evaluate merger review thresholds. Our main … lenient 2010 merger guidelines and unharmed, on average, under enforcement of the more stringent 1982 merger guidelines. We …