Cite as: 504 U. S. 451 (1992)
Opinion of the Court
tempted to monopolize, the service and parts markets in violation of § 2 of the Sherman Act. "The offense of monopoly under § 2 of the Sherman Act has two elements: (1) the possession of monopoly power in the relevant market and (2) the willful acquisition or maintenance of that power as distinguished from growth or development as a consequence of a superior product, business acumen, or historic accident." United States v. Grinnell Corp., 384 U. S., at 570-571.
A
The existence of the first element, possession of monopoly power, is easily resolved. As has been noted, respondents have presented a triable claim that service and parts are separate markets, and that Kodak has the "power to control prices or exclude competition" in service and parts. Du Pont, 351 U. S., at 391. Monopoly power under § 2 requires, of course, something greater than market power under § 1. See Fortner, 394 U. S., at 502. Respondents' evidence that Kodak controls nearly 100% of the parts market and 80% to 95% of the service market, with no readily available substitutes, is, however, sufficient to survive summary judgment under the more stringent monopoly standard of § 2. See National Collegiate Athletic Assn. v. Board of Regents of Univ. of Okla., 468 U. S. 85, 112 (1984). Cf. United States v. Grinnell Corp., 384 U. S., at 571 (87% of the market is a monopoly); American Tobacco Co. v. United States, 328 U. S. 781, 797 (1946) (over two-thirds of the market is a monopoly).
Kodak also contends that, as a matter of law, a single brand of a product or service can never be a relevant market under the Sherman Act. We disagree. The relevant marany evidence refuting respondents' theory of forced unwanted purchases at higher prices and price discrimination. While it may be, as the dissent predicts, that the equipment market will prevent any harms to consumers in the aftermarkets, the dissent never makes plain why the Court should accept that theory on faith rather than requiring the usual evidence needed to win a summary judgment motion.
481
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