In the case of American Column & Lumber Company et al. v. United States, 1921, the U.S Supreme Court was tasked with determining whether a group of hardwood manufacturers had violated the Sherman Antitrust Act by forming an association to control prices and restrict competition. The defendants argued that their actions were not in violation because they did not have monopoly power and there was still competition within their industry. However, the court ruled against them stating that even if there is no complete elimination of competition or creation of a monopoly, any contract or combination formed to restrain trade indirectly or potentially is illegal under antitrust laws. Therefore, it upheld lower courts' decisions finding these companies guilty for violating anti-trust law through price-fixing activities.

In the dissenting opinion for American Column & Lumber Company et al. v. United States, it was argued that the Sherman Act should not be applied to manufacturers who are merely seeking to stabilize prices and prevent ruinous competition within their industry. The dissenting justices believed that such cooperative efforts among businesses did not constitute a conspiracy in restraint of trade or an attempt to monopolize, which are prohibited by the Sherman Act. They contended that these manufacturers were simply trying to maintain fair and reasonable prices for their products while ensuring their own survival in a competitive market environment. Furthermore, they pointed out that there was no evidence of any intent on part of these companies to create a monopoly or control prices beyond what is necessary for self-preservation.