The Complement Market/Final Consumer Distinction: Exclusion & Predation in the U.S. Department of Justice Section 2 Report

Most competition law falls into one of three categories. The first, cartel behavior, is relatively uncontroversial. The basics of the second, horizontal mergers, are generally accepted, but how best to implement itâ€â€efficiency defenses, welfare standards, the need for market definition, or the value of customer testimonyâ€â€can be hotly contested. The most controversial category is single-firm conduct, called monopolization in the United States and abuse of dominance in much of the rest of the world.