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.
Calera is a town in Bryan County, Oklahoma, United States, only 5 miles south of Durant and 10 miles north of the Oklahoma-Texas stateline. The population was 1,739 at the 2000 census and is part of the Durant Micropolitan Area.