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.
Shingle Springs (formerly, Shingle Spring and Shingle) is a census-designated place (CDP) in El Dorado County, California, United States. The population was 2,643 at the 2000 census. It is located about 40 miles from Sacramento in the historic Gold Country foothills and sits directly on Highway 50. The historic towns of Coloma and Placerville are less than 15 miles away. Shingle Springs is part of the Sacramento–Arden-Arcade–Roseville Metropolitan Statistical Area.