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.
Plainville is a village in Adams County, Illinois, United States. The population was 248 at the 2000 census. It is part of the Quincy, IL–MO Micropolitan Statistical Area. In the 1860 Presidential election campaign, Plainville was the site of a political rally involving around 7,000 people. This resulted in the "Stone's Prairie Riot" on August 25, 1860, at which the Republican Party para-military organization, the "Wide Awakes", confronted armed supporters of the Democratic Party.