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.
Killduff is an unincorporated community in southeastern Jasper County, Iowa, United States. It lies along local roads southeast of the city of Newton, the county seat of Jasper County. Its elevation is 922 feet (281 m). Although Killduff is unincorporated, it has a post office with the ZIP code of 50137, which opened on 2 July 1883.