...shipments. [20] As the Supreme Court has observed in United States v. Philadelphia National Bank: * * * [a] merger which produces a firm controlling an undue...is not likely to have such anticompetitive effects. [374 US 321, at 363 (1963)] Quite clearly, concentration figures of the magnitude of those present...

...Mr. Justice Brennan, speaking for the Court, would go only this far : "Specifically, we think that a merger which produces a firm controlling an undue...in a significant increase in the concentration of flrms in the market, is so inherently likely to lessen competition substantially that it must be enjoined...

...market structure, market behavior, or probable anticompetitive effects. Specifically, we think that a merger which produces a firm controlling an undue...is not likely to have such anticompetitive effects. See United States v. Koppers Co., 202 F. Supp. 437 (DCWD Pa. 1962). Such a test lightens the burden...

...appellee. 6 The presumption which the Court laid down in Philadelphia National Bank, supra, at 363, that "a merger which produces a firm controlling an undue...increase in the concentration of firms in that market, is ... inherently likely to lessen competition substantially . . ." was concerned with the application...

...appellee. 6 The presumption which the Court laid down in Philadelphia National Bank, supra, at 363, that "a merger which produces a firm controlling an undue...increase in the concentration of firms in that market, is ... inherently likely to lessen competition substantially . . ." was concerned with the application...

...largest bank controlled under 30 percent of the resources.12 The Court also suggested that — * * * A merger which produces a firm controlling an undue...percentage share of the relevant market, and results in ft significant increase in the concentration of firms in that market (provides a test which is) fully...

...States 370 US 343 (1962). In Philadelphia Snlirtiial Bank, the Court referred specifically to "a mercer which produces a firm controlling an undue percentage share of the relevant ma-- ket." 374 US 363 (1963). e* ". . . where concentration is gaining momentum in a market, we must...

...and * The presumption which the Court laid down in Philadelphia National Bank, supra, at 363, that "a merger which produces a firm controlling an undue...increase in the concentration of firms in that market, is ... inherently likely to lessen competition substantially . . . ." was concerned with the application...

...concentration of business in a single firm, or results in a "significant" increase in concentration of the firms in that market, is so inherently likely to lessen competition substantially that it raises a rebuttable inference of illegality under Clayton § 7. We proceed, therefore, to the question...

...market structure, market behavior, or probable anticompetitive effects. Specifically, we think that a merger which produces a firm controlling an undue...is not likely to have such anticompetitive effects. See United States v. Koppers Co., 202-F. Supp. 437 (DCWD Pa. 1962). Such a test lightens the burden...