<Li> United States v. Trenton Potteries Co., 273 U.S. 392 (1927) per se illegality of price fixing </Li> <Li> Appalachian Coals, Inc. v. United States, 288 U.S. 344 (1933) </Li> <Li> United States v. Socony - Vacuum Oil Co., 310 U.S. 150 (1940) </Li> <P> Bid rigging is a form of price fixing and market allocation that involves an agreement in which one party of a group of bidders will be designated to win the bid . Geographic market allocation is an agreement between competitors not to compete within each other's geographic territories . </P>

Where did congress get the authority to create antitrust laws