tion 2 of the Act.3 Rather it argues that by virtue of the acquisition, Shell entered the ongoing conspiracy between R&F and other defendants named in the original complaint, and did so not only with knowledge of the alleged anticompetitive conduct of the acquired co-conspirators, but also with a purpose to continue the conduct by inducing R&F to breach its contract to pay commissions.
It is well recognized that a co-conspirator who joins a conspiracy with knowledge of what has gone on before and with an intent to pursue the same objectives may, in the antitrust context, be charged with the preceding acts of its co-conspirators. See, e. g., Industrial Building Materials, Inc. v. Interchemical Corp., 437 F.2d 1336, 1343 (9th Cir. 1970). It is also an acknowledged principle that a corporation may “conspire” within the meaning of the Sherman Act with its subsidiaries, provided that the organizations are held out as distinct legal entities. See United States v. Citizens & Southern National Bank, 422 U.S. 86, 116, 95 S.Ct. 2099, 2116, 45 L.Ed.2d 41 (1975); Timken Roller Bearing Co. v. United States, 341 U.S. 593, 598, 71 S.Ct. 971, 974, 95 L.Ed. 1199 (1951). We therefore think that Havoco’s allegations are sufficient as to this element.
B. Restraint of Trade
Interpretation and application of Section 1 of the Sherman Act, which pauciloquently prohibits “[e]very contract, combination in the form of trust or otherwise, or conspiracy, in restraint of trade or commerce among the several States, or with foreign nations” is rarely free from difficulty. This follows from the fact that, as the Supreme Court has observed, the statute cannot be read to mean what it says without invalidating the entire body of commercial contract law. National Society of Professional Engineers v. United States, 435 U.S. 679, 687-88, 98 S.Ct. 1355, 55 L.Ed.2d 637 (1978). It is for this reason that the Act, in accordance with both its legislative history and common law antecedents, has been tempered by the Rule of Reason. See Standard Oil Co. v. United States, 221 U.S. 1, 60, 31 S.Ct. 502, 515, 55 L.Ed. 619 (1911). The Rule does not exempt restraints which may be argued to be reasonable or expedient, but rather focuses on the reasonableness of the effect of the challenged restraint on competition. National Society of Professional Engineers v. United States, supra, 435 U.S. at 688, 98 S.Ct. at 1363. An examination of the legality of any conduct alleged to be anticompetitive therefore necessitates a determination as to what the consequences of the conduct have been in the affected market.
Contrary to Havoco’s assertion, the absence of a sufficient allegation of anti-competitive effects in a Sherman Act complaint is fatal to the existence of the cause of action. It was a desire to eliminate the public injury of diminished competition which impelled Congress to enact the antitrust laws and to provide a treble damage recovery to those private parties willing to bring enforcement actions. See, e. g., Apex Hosiery Co. v. Leader, 310 U.S. 469, 500-01, 60 S.Ct. 982, 996, 84 L.Ed. 1311 (1940); Magnus Petroleum Co., Inc. v. Skelly Oil Co., 599 F.2d 196, 204 (7th Cir. 1979), cert. denied, 444 U.S. 916, 100 S.Ct. 231, 62 L.Ed.2d 171; Stifel, Nicolaus & Co. v. Dain, Kalman & Quail, Inc., 578 F.2d 1256, 1259 (8th Cir. 1978); Northwest Power Products, Inc. v. Omark Industries, Inc., 576 F.2d 83 (5th Cir. 1978), cert. denied, 439 U.S. 1116, 99 S.Ct. 1021, 59 L.Ed.2d 75 (1979); George R. Whitten, Jr., Inc. v. Paddock Pool Builders, Inc., 508 F.2d 547 (1st Cir. 1974), cert. denied, 421 U.S. 1004, 95 S.Ct. 2407, 44 L.Ed.2d 673 (1975); Kinnear-Weed Corp. v. Humble Oil & Refining Co., 214 F.2d 891,
3
Section 2 of the Sherman Act may be employed to challenge a merger or acquisition which will create a vertical integration that will foreclose a share of the market otherwise open to competitors, if the net effect of the integration is to provide the economic power or leverage within the market for the creation of the monopoly. See Brown Shoe Co. v. United States, 370 U.S. 294, 328, 82 S.Ct. 1502, 1525, 8 L.Ed.2d 510 (1962). See generally II E. Kintner, Federal Antitrust Law § 12.16 (1980).