The Clayton Antitrust Act is an amendment passed by U.S. Congress in 1914 that provides further clarification and substance to the Sherman Antitrust Act of 1890. The Act focuses on topics such as price discrimination, price fixing, and unfair business practices.
No matter who you are a company must sell there products in wholesale for the same cost.
Section 7 of the Clayton Act prohibits mergers and acquisitions where the effect "may be substantially to lessen competition, or to tend to create a monopoly." As amended by the Robinson-Patman Act of 1936, the Clayton Act also bans certain discriminatory prices, services, and allowances in dealings between merchants.
That regime started with the Sherman Antitrust Act of 1890, the first Federal law outlawing practices considered harmful to consumers (monopolies, cartels, and trusts). The Clayton Act specified particular prohibited conduct, the three-level enforcement scheme, the exemptions, and the remedial measures.