(IANAL) I don't think it's legal, but "it can be difficult to prove that prices dropped because of deliberate predatory pricing rather than legitimate price com

(IANAL) I don't think it's legal, but "it can be difficult to prove that prices dropped because of deliberate predatory pricing rather than legitimate price competition. In any case, competitors may be driven out of the market before the case is ever heard."[0] [0] https://en.wikipedia.org/wiki/Predatory_pricing https://en.wikipedia.org/wiki/Predatory_pricing