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.
Downers Grove is a village in Downers Grove and Lisle Townships, DuPage County, Illinois, located 19 miles (31 km) west of Chicago. The population was 48,724 at the 2000 United States Census. The United States Census Bureau estimated the population in 2008 to be 49,250.