-level uncertainty is characterized by a pecking order: the announcement of a domestic takeover leads to a reduction in the uncertainty …

post-merger efficiency improvements to reveal a new margin of adjustment along the product dimension. We analyze horizontal … between differentiated varieties. After a merger, acquirers drop products from their consolidated domestic product portfolio … and reallocate assets towards core varieties. We further demonstrate that such merger-induced efficiency gains imply …

We study the effect of a merger between two Dutch supermarket chains to assess its effect on the depth as well as … composition of assortment. We adopt a difference-in-differences strategy that exploits local variation in the merger’s effects …, controlling for selection on observables through a matching procedure when defining our control group. We show that the merger led …

EU Merger Control Regulation No 4064/89 tended to rely on a dominance test, based on the market share of undertakings … questionable. New EC Merger Regulation No 139/2004 introduces a substantive test to ensure that all post-merger scenarios posing a …

discrimination. Finally, we evaluate the effect of hypothetical mergers on input markets and farm surplus. A merger between nearby …, a merger between distant buyers has little effect on competition and markdowns …