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.
Prole is an unincorporated community in northwestern Warren County, Iowa, United States. It lies along Iowa Highway 28 northwest of the city of Indianola, the county seat of Warren County. Its elevation is 978 feet (298 m), and it is located at 41°24′33″N 93°43′38″W / 41.40917°N 93.72722°W / 41.40917; -93.72722 (41.4091580, -93.7271648). Although Prole is unincorporated, it has a post office, with the ZIP code of 50229, which opened on 25 September 1884.