Supreme Court of the United States June 6, 1966, 118 (Federal Trade Commission v. Brown Shoe Co.)

Mr. Justice Black

delivered the opinion of the Court.

Section 5 (a) (6) of the Federal Trade Commission Act empowers and directs the Commission “to prevent persons, partnerships, or corporations . . . from using unfair methods of competition in commerce and unfair or deceptive acts or practices in commerce.