The Supreme Court has never expressly approved an efficiencies defense to a § 7 claim. See H.J. Heinz, 246 F.3d at 720. Indeed, Brown Shoe cast doubt on the defense: Of course, some of the results of large integrated or chain operations are beneficial to consumers. Their expansion is not rendered unlawful by the mere fact that small independent stores may be adversely affected. It is competition, not competitors, which the Act protects. But we cannot fail to recognize Congress' desire to promote competition through the protection of viable, small, locally owned business. Congress appreciated that occasional higher costs and prices might result from the maintenance of fragmented industries and markets. It resolved these competing considerations in favor of decentralization. We must give effect to that decision. 370 U.S. at 344. Similarly, in FTC v. Procter & Gamble Co., the Court stated that '[p]ossible economies cannot be used as a defense to illegality. Congress was aware that some mergers which lessen competition may also result in economies but it struck the balance in favor of protecting competition.' 386 U.S. 568, 580, 87 S. Ct. 1224, 18 L. Ed. 2d 303 (1967).