None of that really contradicts the parent comment. > Courts look at the firm's market share, but typically do not find monopoly power if the firm (or a group

None of that really contradicts the parent comment. > Courts look at the firm's market share, but typically do not find monopoly power if the firm (or a group of firms acting in concert) has less than 50 percent of the sales of a particular product or service within a certain geographic area. Some courts have required much higher percentages. In addition, that leading position must be sustainable over time: if competitive forces or the entry of new firms could discipline the conduct of the leading firm, courts are unlikely to find that the firm has lasting market power.