Two-Sided Market Definition

By Global Economics Group on March 17, 2011

David S. Evans, Chairman of Global Economics Group, notes that the standard one-sided approaches to market definition will tend to exclude the other side of the platform, and consequently define markets too broadly or too narrowly depending on the technique used. In response to this shortcoming, in Dr. Evans defines what a two-sided market is, and provides detailed examples that economists and non-economists alike can relate to and understand. In his essay, Two-Sided Market Definition, (ABA Section of Antitrust Law, Market Definition in Antitrust: Theory And Case Studies, Forthcoming) Dr. Evans provides a definition of two-sided markets in order to help antitrust analysis focus on a relevant set of products and businesses. Two-Sided Market Definition