Nonviolent boycotts and related activities to bring about political, social, and economic change are political speech which are entitled to the protection of the First Amendment. Decided July 2, 1982 (argued March 3, 1982). Opinion of the Court: John Paul Stevens → go there Topic: Freedom of speech and of the press. National Association for the Advancement of Colored People v. Claiborne Hardware Co., 458 U.S. 886 (1982), is a landmark decision of the United States Supreme Court ruling that the broad power of states to regulate economic activities does not include prohibiting peaceful advocacy of a politically motivated boycott. Wiki link