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.
Petersburg is a city in Monroe County in the U.S. state of Michigan. The population was 1,167 at the 2000 census. Petersburg is named after Richard Peters, who sold the land necessary to found the town in 1836. It was originally called Summerfield and Peters was its first postmaster, but it was later named Petersburgh in honor of Peters and was eventually shortened to Petersburg. Petersburg is served by Summerfield Schools.