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.
Belle Fourche is a city in and the county seat of Butte County, South Dakota, United States. The population was 4,565 at the 2000 census. Belle Fourche is the site of the geographic center of the fifty United States. (Lebanon, Kansas claims the title for the 48 contiguous states.)