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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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GOVERNMENT FUNCTIONS

Resource allocation activities that are more efficiently performed using the coercive government powers of taxation, spending, and regulatory authority than by private sector market exchanges. The most noted activities are (1) common defense; (2) education; (3) transportation; (4) public health and safety; (5) legal and judicial system; and (6) money.

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APLS

RED AGGRESSERINE
[What's This?]

Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club seeking to buy either clothing for your kitty cats or a set of luggage without wheels. Be on the lookout for attractive cable television service repair people.
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Parker Brothers, the folks who produce the Monopoly board game, prints more Monopoly money each year than real currency printed by the U.S. government.
"Inside the ring or out, ain't nothing wrong with going down. It's staying down that's wrong. "

-- Muhammad Ali

IROR
Internal Rate of Return
A PEDestrian's Guide
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