power. In those situations, governments could attempt to regulate the market or to increase competition. We provide the … first experimental evidence on the effect of increased competition on prices and quality relying on an intervention that …

Using an aggregative games approach, we analyze horizontal mergers in a model of multiproduct-firm price competition … approximation for the market power effect of a merger. We also provide conditions under which a merger raises consumer surplus, and … conditions under which a myopic, consumer-surplus-based merger approval policy is dynamically optimal. Finally, we study the …

Concentration-based screens for horizontal mergers, such as those employed in the US DOJ and FTC Horizontal Merger … Guidelines, play a central role in merger analysis. However, the basis for these screens, in both form and level, remains unclear …

We analyze the optimal dynamic policy of an antitrust authority towards horizontal mergers when merger proposals are … endogenous and occur over time. Approving a currently proposed merger will affect the profitability and welfare effects of … surplus by using a completely myopic merger review policy that approves a merger today if and only if it does not lower …

merger wave. The evidence indicates that the efficiency of the majority of acquiring firms increases following an acquisition …. Based on the parameter estimates, we calculate merger welfare effects. We find that total welfare increased by $583 …

(QHFT) model, we classify export goods (at the HS 6-digit level of disaggregation) by quality and price competition. We find … a high proportions of quality-competition goods for the major EU countries and lower proportions for Canada, Australia … and China. However, the overlap of these quality-competition goods is not large, which suggests that characteristics of …

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

method to study merger effects on firm entry and product variety in the retail craft beer market in California. We simulate …