Reuben E. Slesinger
Attention by the courts to what constitutes a market has resulted from litigation enforcement by both the Federal Trade Commission and the Antitrust Division of the Department of Justice, especially in connection with the amended section 7 of the Clayton Act. The termmarket is not mentioned in either the Clayton or the Sherman Acts. What constitutes a “part of commerce,? “a line of commerce,? or “section of the country? has been interpreted by the courts to mean “a market.? A market in antitrust administration then becomes judicial—a process of interpreting the language of the antitrust statutes.