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INDETERMINANT: The term commonly used to indicate that the direction of the change in either price or quantity is not known when the market experiences simultaneous shifts in both the demand and supply curves. For example, an increase in both demand and supply definitely increases the quantity exchanged. But whether the market price increases or decreases is indeterminant.

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BARRIERS TO ENTRY

Institutional, government, technological, or economic restrictions on the entry of participants into a market or industry. The four primary barriers to entry are: (1) resource ownership, (2) patents and copyrights, (3) government restrictions, and (2) start-up cost. Barriers to entry are a key reason for market control and the inefficiency that results. In particular, monopoly, oligopoly, monopsony, and oligopsony often owe their market control to assorted barriers to entry. By way of contrast, perfect competition, monopolistic competition, and monopsonistic competition have few if any barriers to entry and thus little or no market control.

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Today, you are likely to spend a great deal of time browsing about a thrift store hoping to buy either a toaster oven that has convection cooking or a birthday gift for your mother. Be on the lookout for pencil sharpeners with an attitude.
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The New York Stock Exchange was established by a group of investors in New York City in 1817 under a buttonwood tree at the end of a little road named Wall Street.
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