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.
Tubac is a census-designated place (CDP) in Santa Cruz County, Arizona, United States. The population was 949 at the 2000 census. The name is a Spanish adaption of O'odham phrase "s-cuk baʼa", or perhaps "cu wa", meaning "black water" or "low place", respectively Tubac is situated on the Santa Cruz River. Tubac was the original Spanish colonial garrison in Arizona. It was depopulated during the O'odham Uprising in the eighteenth century. During the nineteenth century, the area was repopulated by miners, farmers and ranchers, but the town of Tubac is best known today as an artists' colony.