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BARRIER TO ENTRY: An institutional, government, technological, or economic restriction on the entry of firms into a market or industry. The four primary barriers to entry are: resource ownership, patents and copyrights, government restrictions, and start-up costs. Barriers to entry are a key reason for market control and the inefficiency that this generates. 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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MONEY FUNCTIONS Any item used as money in an economy automatically takes on four basic functions: (1) medium of exchange, (2) unit of account, (3) store of value, and (4) standard of deferred payment. While "buying and selling" means that money is THE medium of exchange, and by far THE most important function of money, money also performs unit of account, store of value, and standard of deferred payment functions.
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BROWN PRAGMATOX
[What's This?]
Today, you are likely to spend a great deal of time browsing through a long list of dot com websites hoping to buy either one of those "hang in there" kitty cat posters or a velvet painting of Elvis Presley. Be on the lookout for small children selling products door-to-door.
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This isn't me! What am I?
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General Electric is the only stock from the original 1896 Dow Jones Industrial Average remaining in the current index.
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"What gets measured gets done." -- Peter Drucker, educator
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AER
American Economic Review
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