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ENTRY BARRIER: 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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GOLD CERTIFICATES Paper currency issued and authorized by the U.S. Department of the Treasury that is, in principle, backed up by, and exchangeable for, an equivalent value of gold. Gold certificates were in circulation as a medium of exchange for the U.S. economy during two periods, 1865 to 1922 and 1928 to 1934. A similar form of paper currency is silver certificates.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time driving to a factory outlet seeking to buy either a set of luggage without wheels or a how-to book on wine tasting. Be on the lookout for strangers with large satchels of used undergarments.
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Lombard Street is London's equivalent of New York's Wall Street.
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"Genius is an infinite capacity for taking pains. " -- Jane Ellis Hopkins, writer
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AVC
Average Variable Cost
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