Guide to Antitrust Laws (Price Discrimination)
FEDERAL TRADE COMMISSION
A seller charging competing buyers different prices for the same "commodity" or discriminating in the provision of "allowances" -- compensation for advertising and other services -- may be violating the Robinson-Patman Act. This kind of price discrimination may hurt competition by giving favored customers an edge in the market that has nothing to do with the superior efficiency of those customers. However, price discriminations generally are lawful, particularly if they reflect the different costs of dealing with different buyers or result from a sellers attempts to meet a competitors prices or services.
Price discrimination also might be used as a predatory pricing tactic -- setting prices below cost to certain customers -- to harm competition at the suppliers level. Antitrust authorities use the same standards applied to predatory pricing claims under the Sherman Act and the FTC Act to evaluate allegations of price discrimination used for this purpose.
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