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.
Chatham is a village in Sangamon County, Illinois, United States. The population was 8,583 at the 2000 census. A special census conducted in 2005 put the population at 10,260. The village lies along the original alignment of historic U.S. Route 66. Chatham is part of the Springfield, Illinois Metropolitan Statistical Area.