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.
Deadwood is a city in South Dakota, United States, and the county seat of Lawrence County. It is named for the dead trees found in its gulch. The population was 2,071 as of the 2000 census. The city includes the Deadwood Historic District, a National Historic Landmark District, whose borders may be the city limits.