Media market structures are changing constantly. Traditional media outlets such as newspapers are being hard-hit by the digitalization of content, causing market exit and long-term consolidation in many countries. Competition policy in media markets is not only concerned with this trend because...

Within the last three years, Google has acquired YouTube and DoubleClick and has attempted to control part of Yahoo!'s search advertising business. Two of the deals have not raised antitrust concerns by competition authorities. I review these deals with a focus on consumer welfare. Consumers are...

This paper summarizes the peculiarities of online markets and discusses recent antitrust cases related to online markets. Following a brief description of the online markets' characteristics and potential tendencies for concentration the paper first discusses the antitrust allegations and...

Antitrust analysis of online markets is a hot topic around the world. In a number of jurisdictions, online markets already have been subject to antitrust review in merger or conduct cases. In other jurisdictions, these issues are in a nascent stage of policy. A number of lessons can be learned...

It is often assumed that consumers benefit from the internet because it offers a "long tail" with more variety of products to choose from. However, search costs may block the long tail effect and result in the dominance of superstars. This paper examines the variety hypothesis in the entire...

The Internet consists of disparate websites that, though built independently by separate developers, must interact with each other to provide users a seamless online experience. Application Programming Interfaces (APIs), which enable these interactions, were originally built out of necessity but...

Search engines are one of the main channels to access news content of traditional newspapers. In the European Union, organic search traffic from Google accounts for 35% of news outlets’ visits. Yet, the effects of Google Search on market competition and information diversity are ambiguous, as...