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 …

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

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 …

Economic theory suggests that monopoly prices hurt consumers but benefit shareholders. But in a world where individuals …

compatibility and can engage in bundling. We consider the impact of merger on prices, investment and consumer surplus. We also …

In several European merger cases competition authorities have demanded that the merging firm auctions off virtual …