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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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SLOPE, AGGREGATE DEMAND CURVE

The negative slope of aggregate demand curve, reflecting the inverse relation between the price level and aggregate expenditures on real production, is attributable to three primary effects--real-balance effect, interest-rate effect, and net-export effect.

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APLS

GRAY SKITTERY
[What's This?]

Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club wanting to buy either a tall storage cabinet with five shelves and a secure lock or a birthday greeting card for your grandmother. Be on the lookout for cardboard boxes.
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This isn't me! What am I?

In 1914, Ford paid workers who were age 22 or older $5 per day -- double the average wage offered by other car factories.
"The past is a foreign country; they do things differently there."

-- Leslie Poles Hartley, Writer

FXA
Foreign Exchange Agreement
A PEDestrian's Guide
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