Antitrust and Trade Regulation laws aim to promote free competition in the marketplace. Agreements or cooperative efforts by two or more entities that affects or restrains competitors is illegal under these laws. The Sherman Act makes illegal any contract, combination, or conspiracy in restraint of trade or commerce and makes monopolies and attempts, combinations, or conspiracies to monopolize illegal. The Clayton Act regulate price discrimination, tying and exclusive dealing contracts, stock acquisition and interlocking directorates.
Berkeley is a village located in Cook County, Illinois, United States. Incorporated in 1924, the population at the 2000 census was 5,245. The town has a commuter railroad station on Metra's Union Pacific/West Line with service to downtown Chicago.