Examlex
Which of the following graphical symbols represents a minimum cardinality of one and a maximum cardinality of one?
Natural Monopoly
A market condition where due to high infrastructure or setup costs, a single supplier is more efficient than multiple competing ones, often seen in utilities.
International Nickel Company
A historically significant Canadian corporation involved in the mining and processing of nickel and other metals; known today as Vale Canada Limited after various mergers and acquisitions.
Southwestern Bell
A former American telecommunications company that was one of the seven original Regional Bell Operating Companies after the U.S. Department of Justice broke up the American Telephone & Telegraph Company in 1984.
Legal Barrier
Any law or regulation that limits or controls the entrance of a firm into an industry or the launch of a new product.
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