|Cornering the market|
A person corners a market when he obtains a virtual monopoly over the supply of particular goods or services. He is then able to name his own price. In the past this sometimes happened to the market in raw materials. Markets may be cornered for a short term or a person may make a fortune by controlling the supply of a particular raw material for an unlimited period. The possibilities are now somewhat restricted by state intervention.
|Reference: The Penguin Business Dictionary, 3rd edt.|