Hugo Black,
Northern Pacific Railway Company v…
“ And far from repudiating any of the principles set forth in International Salt it vigorously reasserted them by broadly condemning tying arrangements as wholly inconsistent with the fundamental principles of the antitrust laws. In the Court's forceful terms, 'Tying arrangements * * * flout the Sherman Act's policy that competition rule the marts of trade. * * * By conditioning his sale of one commodity on the purchase of another, a seller coerces the abdication of buyers' independent judgment as to the 'tied' product's merits and insulates it from the competitive stresses of the open market. ”
