Columbia subject headings:
Competition--Government policy--United States.
Consolidation and merger of corporations--United States.
Digital communications--Economic aspects--United States.
Monopolies--United States.
Harvard subject headings:
Cable television--Law and legislation--United States
Competition--Government policy--United States
Consolidation and merger of corporations--United States.
Digital communications--Economic aspects--United States.
Monopolies--United States.
Telecommunication--Law and legislation--United States
Telecommunication--Mergers--United States.
Princeton subject headings:
Competition--Government policy--United States.
Consolidation and merger of corporations--United States.
Digital communications--Economic aspects--United States.
Monopolies--United States.