By serving as a key revenue source for online content providers, online advertising has been instrumental in the development of innovative websites. Continued innovation among content providers, however, depends critically on the competitive provision of online advertising. Suppliers of online...

Many experts speculate that U.S. antitrust policy towards horizontal mergers has been too lenient. We estimate the price effects of Whirlpool's acquisition of Maytag to provide new evidence on this debate. We compare price changes in appliance markets most affected by the merger to markets where...

We study effects on prices and quantities of a takeover in the rather concentrated German interurban bus industry. We empirically asses the effect of the takeover of Postbus by Flixbus on industry key features, using a route-level price data set containing prices for more than 6,000 routes in...

Divestitures have received little attention in ex-post evaluations of mergers. In partial remedy we simulate the effects of the Carlsberg-Pripps merger in the Swedish beer market and compare the predicted outcomes with those observed ex-post. There are no important price increases following the...

We study effects on prices and quantities of a takeover in the rather concentrated German interurban bus industry. We empirically asses the effect of the takeover of Postbus by Flixbus on industry key features, using a route-level price data set containing prices for more than 6,000 routes in...

We examine whether and how firms structure their merger and acquisition (M&A) deals to avoid scrutiny from antitrust regulators. There are approximately 40% more M&As than expected bunching just below thresholds that trigger antitrust review. These “stealth acquisitions” tend to involve...

Since 2010, Google, Apple, Facebook, Amazon, and Microsoft (GAFAM) have acquired more than 400 companies. Competition authorities did not scrutinize most of these transactions and blocked none. This raised concerns that GAFAM acquisitions target potential competitors yet fly under the radar of...

An intense academic debate has arisen recently concerning the crucial bedrock that underpins a corporate governance regime where widely-held public companies dominate. In the discourse, little has been said about the contribution of merger activity. The paper seeks to address this gap by...

A great merger wave occurring in the United States between 1897 and 1903 was the single most important event in a process that yielded the pattern of managerial control and dispersed share ownership which currently distinguishes America's corporate economy from arrangements in most other...