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Reference.org
Parker immunity doctrine
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<p>The Parker immunity doctrine is an exemption from <a href="/facts/Legal_liability/GKRNLqIY">liability</a> for engaging in <a href="/facts/Antitrust/cq7hKYN4">antitrust</a> violations. It applies to the state when it exercises legislative authority in creating a regulation with anticompetitive effects, and to private actors when they act at the direction of the state after it has done so. The doctrine is named for the <a href="/facts/Supreme_Court_of_the_United_States/rJHothwW">Supreme Court of the United States</a> case in which it was initially developed, <i><a href="/facts/Parker_v._Brown/autLNPBG">Parker v. Brown</a></i>. </p><p>The rationale behind <i>Parker</i> immunity is that Congress, in enacting the Sherman Act, evidenced no intent to restrain state behavior. </p>