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  2. Sherman Antitrust Act - Wikipedia

    en.wikipedia.org/wiki/Sherman_Antitrust_Act

    The Sherman Antitrust Act of 1890 [1] (26 Stat. 209, 15 U.S.C. §§ 1–7) is a United States antitrust law which prescribes the rule of free competition among those engaged in commerce and consequently prohibits unfair monopolies. It was passed by Congress and is named for Senator John Sherman, its principal author.

  3. Monopolization - Wikipedia

    en.wikipedia.org/wiki/Monopolization

    In United States antitrust law, monopolization is illegal monopoly behavior. The main categories of prohibited behavior include exclusive dealing, price discrimination, refusing to supply an essential facility, product tying and predatory pricing. Monopolization is a federal crime under Section 2 of the Sherman Antitrust Act of 1890.

  4. United States antitrust law - Wikipedia

    en.wikipedia.org/wiki/United_States_antitrust_law

    American antitrust law formally began in 1890 with the U.S. Congress's passage of the Sherman Act, although a few U.S. states had passed local antitrust laws during the preceding year. [12] Using broad and general terms, the Sherman Act outlawed "monopoliz[ation]" and "every contract, combination ... or conspiracy in restraint of trade".

  5. Rule of reason - Wikipedia

    en.wikipedia.org/wiki/Rule_of_reason

    The rule of reason is a legal doctrine used to interpret the Sherman Antitrust Act, one of the cornerstones of United States antitrust law.While some actions like price-fixing are considered illegal per se, other actions, such as possession of a monopoly, must be analyzed under the rule of reason and are only considered illegal when their effect is to unreasonably restrain trade.

  6. History of United States antitrust law - Wikipedia

    en.wikipedia.org/wiki/History_of_United_States...

    Standard Oil (Refinery No. 1 in Cleveland, Ohio, pictured) was a major company broken up under United States antitrust laws.. The history of United States antitrust law is generally taken to begin with the Sherman Antitrust Act 1890, although some form of policy to regulate competition in the market economy has existed throughout the common law's history.

  7. United States v. Alcoa - Wikipedia

    en.wikipedia.org/wiki/United_States_v._Alcoa

    United States v. Alcoa, 148 F.2d 416 (2d Cir. 1945), [1] is a landmark decision concerning United States antitrust law.Judge Learned Hand's opinion is notable for its discussion of determining the relevant market for market share analysis and—more importantly—its discussion of the circumstances under which a monopoly is guilty of monopolization under section 2 of the Sherman Antitrust Act.

  8. United States v. American Tobacco Co. - Wikipedia

    en.wikipedia.org/wiki/United_States_v._American...

    United States v. American Tobacco Company, 221 U.S. 106 (1911), was a decision by the United States Supreme Court, which held that the combination in this case is one in restraint of trade and an attempt to monopolize the business of tobacco in interstate commerce within the prohibitions of the Sherman Antitrust Act of 1890.

  9. Noerr–Pennington doctrine - Wikipedia

    en.wikipedia.org/wiki/Noerr–Pennington_doctrine

    In Noerr, the Court held that "no violation of the [Sherman] Act can be predicated upon mere attempts to influence the passage or enforcement of laws". Similarly, the Court wrote in Pennington that "[j]oint efforts to influence public officials do not violate the antitrust laws even though intended to eliminate competition."