Copperweld Corp. v. Independence Tube Corp.

Justice Stevens, with whom Justice Brennan and Justice Marshall join,

dissenting.

It is safe to assume that corporate affiliates do not vigorously compete with one another. A price-fixing or market-allocation agreement between two or more such corporate entities does not, therefore, eliminate any competition that would otherwise exist. It makes no difference whether such an agreement is labeled a “contract,” a “conspiracy,” or merely a policy decision, because it surely does not unreasonably restrain competition within the meaning of the Sherman Act. The Rule of Reason has always given the…