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.
Plankinton is a city in Aurora County, South Dakota, United States. The population was 601 at the 2000 census. It is the county seat of Aurora County. Plankinton was named for Milwaukee meatpacker and hotel owner John Plankinton, a friend of Alexander Mitchell, the President of the Milwaukee Road. Plankinton was home to an annual wheat palace, which became a successful regional attraction and inspired the Corn Palace in nearby Mitchell, South Dakota.