#monopoly  (economics) a market in which there are many buyers but only one seller; "a monopoly on silver"; "when you have a monopoly you can ask any price you like"
  supertype:  #marketplace__market  the world of commercial activity where goods and services are bought and sold; "without competition there would be no market"; "they were driven from the marketplace"
  subtype:  #corner  a temporary monopoly on a kind of commercial trade: "a corner on the silver market"

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