Opinion · Supreme Court of the United States

United States v. E. I. Du Pont De Nemours & Co.

United States v. E. I. Du Pont De Nemours & Co., 76 S. Ct. 994 (1956)

Type
Opinion
Court
Supreme Court of the United States
Jurisdiction
Federal
Date
1956-06-11
Topic
general

holding that a manufacturer's monopoly over the distribution of its own product is not illegal | holding that, for antitrust purposes, the relevant market "is composed of products [or services] that have reasonable interchangeability for the purposes for which they are produced—price, use, and qualities considered” | stating that a relevant market consists of “commodities reasonably interchangeable by consumers for the same purposes.” | noting that the relevant product market consists of all products that are “reasonably interchangeable by consumers for the same purposes” | noting that one product does not necessarily make up a relevant market if substitute products are accessible | explaining that cellophane market includes other, substitutable flexible wrapping materials as well | defining product market as broader flexible packaging market instead of narrower cellophane market would lower defendant’s market share from roughly 75% to less than 20% | defining product market as broader flexible packaging market instead of narrower cellophane market would lower defendant's market share from roughly 75% to less than 20% | noting that monopoly power is “the power to control prices or exclude competition” | distinguishing between monopolization attempt to monopolize and conspiracy to monopolize with regard to market definition | explaining that cellophane market includes other, substitutable flexible wrapping materials as well | explaining that cellophane market includes other, substitutable flexible wrapping materials as well | discussing Section 2 illegal monopoly power in terms of the potential competitors for the monopolist’s product | recognizing “functional interchangeability” between cellophane and other flexible wrappings | including cellophane and all flexible wrapping materials in same relevant market in Section 2 case | distinguishing between monopolization attempt to monopolize and conspiracy to monopolize with regard to market definition | finding aluminum foil, waxed paper, and Saran wrap to be reasonable substitutes of the cellophane product at issue | distinguishing market inquiry relevant to monopolization from that relevant to attempts or conspiracies to monopolize; commenting that where allegations of conspiracy and combination to monopolize are present, "the scope of the market was not in issue" | emphasizing “the responsiveness of the sales of one product to price changes of [another]” | defining "cross-price elasticity of demand” as the "[t]he ratio between the proportional change in demand for a good and the proportional change in the price of a different good” (emphases added) | distinguishing market inquiry relevant to monopolization from that relevant to attempts or conspiracies to monopolize; commenting that where allegations of conspiracy and combination to monopolize are present, “the scope of the market was not in issue” | rejecting argument that market for flexible wrapping materials should be further sub-divided by their unique physical characteristics, such that Pliofilm, foil, glassine, polyethylene, Saran, plain cellophane, and moisture proof cellophane were in separate markets | defining market power as "the power to control prices or exclude competition” | dismissing section 1 claim for failure to allege an economic market | defining “monopoly power” as “the power to control prices or exclude competition” | Setting forth the relevant product market test in an antitrust case | cit- ing 2A Phillip E. Areeda & Herbert Hovenkamp, Antitrust Law ¶ 501, at 85 (1995) | "The relevant market includes those products or services that are reasonably interchangeable with, as well as identical to, defendant's product." | other evidence, including that showing size and strength of competitors, showed that defendant did not have market power | “[T]he plaintiff must prove ... [the] relevant market (including geographic market and relevant product market | where the Supreme Court refused to place cellophane outsi

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