Sherman Antitrust Act was the first major federal legislation passed to encourage competition in the United States.

Bernice Rothman Hasin has written:

'Consumers, commissions, and Congress' -- subject(s): Consumer protection, Law and legislation, United States, United States. Federal Trade Commission

'The elasticity of economic regulation in the United States' -- subject(s): United States, United States. Federal Trade Commission

Robert Sears McMahon has written:

'Federal regulation of the radio and television broadcast industry in the United States, 1927-1959' -- subject(s): Broadcasting, History, Law and legislation, Radio, Television, United States, United States. Federal Communications Commission

William B. Ray has written:

'FCC' -- subject(s): Law and legislation, Radio, Television, United States, United States. Federal Communications Commission

In the United States, the main purpose of antitrust legislation is to promote competition in business.