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PERFECT COMPETITION AND EFFICIENCY: Perfect competition is the idealized market structure that achieves an efficient allocation of resources. The conditions of perfect competition, including (1) large number of small firms, (2) identical products sold by all firms, (3) freedom of entry into and exit out of the industry, and (4) perfect knowledge of prices and technology, ensure that perfect competition efficiently allocates resources. This is in fact the purpose of perfect competition: a market structure that illustrates perfection, the best of all possible resource allocation worlds. The real world falls short of this perfection.

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AGGREGATE DEMAND DECREASE, SHORT-RUN AGGREGATE MARKET

A shock to the short-run aggregate market caused by a decrease in aggregate demand, resulting in and illustrated by a leftward shift of the aggregate demand curve. A decrease in aggregate demand in the short-run aggregate market results in a decrease in the price level and a decrease in real production. The level of real production resulting from the shock can be greater or less than full-employment real production.

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APLS

BLUE PLACIDOLA
[What's This?]

Today, you are likely to spend a great deal of time searching for a specialty store hoping to buy either an AC adapter for your CD player or storage boxes for your family photos. Be on the lookout for letters from the Internal Revenue Service.
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This isn't me! What am I?

Al Capone's business card said he was a used furniture dealer.
"To sit back and let fate play its hand out, and never influence it, is not the way man was meant to operate."

-- John Glenn, astronaut, U.S. senator

EFT
Electronic Funds Transfer
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