Herbert Hovenkamp ‘Antitrust and Information Technologies’ 2017 Fla. L. Rev. 68 419

This is a polished version of a lecture given by Hovenkamp last year, and it can be found here.  As the name indicates it provides an overview of “the relationship between competition policy and the technologies of information.” A first section looks at the relationship between digital technology and market power. In particular, digital technology affects the way firms exercise market power and also creates serious measurement difficulties. A pervasive problem in analysing power in digital markets is that sellers typically have a very high ratio of fixed to variable costs. This entails that prices must be considerably above short-run marginal cost to be profitable. As a result of this, many traditional measures of market power produce unacceptable false positives. These measures include the Lerner Index and other tools derived from it, but are not limited to them: “None of the antitrust tools for assessing power is particularly sensitive to the presence of fixed costs”. He thus concludes that antitrust…