Summary

Portrait of Abe Fortas Abe Fortas United States v. Grinnell Corporation…

The Government's market definition, accepted by the trial court, is a distortion which inevitably leads to a superficial and distorted results even in the hands of a highly skilled judge. As this Court held in Brown Shoe, supra, the 'reasonable interchangeability of use or the cross-elasticity of demand,' determines the boundaries of a product market.
Source: Wikisource

Portrait of Abe Fortas Abe Fortas United States v. Grinnell Corporation…

It is entirely possible that monopoly or attempt to monopolize may be found-and perhaps found with greater force-in local situations. Relief on a pervasive, system-wide, national basis might follow, as decreed by the trial court, as well as divestiture in appropriate local situations, as directed by this Court. It is impossible, I submit, to make these judgments on the findings before us because of the distortion due to an incorrect and unreal definition of the 'relevant market.' Now, because of this Court's mandate, the market-by-market inquiry must begin for purposes of the decree.
Source: Wikisource

Portrait of Abe Fortas Abe Fortas United States v. Grinnell Corporation…

The services at issue are intensely local: they can be furnished only locally. The business as it is done is local not nationwide. If, as might well be the case on this record, defendants were found to have violated the Sherman Act in a number of these local areas, a proper decree, directed to those markets, as well as to general corporate features relevant to the condemned practices, could be fashioned. On the other hand, a gross definition of the market as nationwide leads to a gross, nationwide decree which does not address itself to the realities of the market place.
Source: Wikisource

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