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.
Centreville is an unincorporated community in Fairfax County, Virginia, United States. Recognized by the U.S. Census Bureau as a Census Designated Place (CDP), the community population was 48,661 as of the 2000 census and is approximately 20 miles from Washington, DC.