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.
Petaluma is a city in Sonoma County, California, in the United States. It is estimated that the 2006 population was 54,660 Located in Petaluma is the Rancho Petaluma Adobe, a National Historic Landmark. It was built beginning in 1836 by General Mariano Guadalupe Vallejo, then Commandant of the San Francisco Presidio. It was the center of a vast 66,000 acre (270-km²) ranch stretching from Petaluma River to Sonoma Creek. The adobe is considered one of the best preserved buildings of its era in Northern California. Petaluma is a transliteration of the Coast Miwok phrase péta lúuma which means hill backside and probably refers to Petaluma's proximity to Sonoma Mountain. Petaluma has a well preserved, historic city center which includes many buildings that survived the 1906 San Francisco earthquake.