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PERFECT COMPETITION, REVENUE DIVISION: The marginal approach to analyzing a perfectly competitive firm's short-run profit maximizing production decision can be used to identify the division of total revenue among variable cost, fixed cost, and economic profit. The U-shaped cost curves used in this analysis provide all of the information needed on the cost side of the firm's decision. The demand curve facing the firm (which is also the firm's average revenue and marginal revenue curves) provides all of the information needed on the revenue side.

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DEMAND SHOCK

A disruption of market equilibrium caused by a change in a demand determinant and a shift of the demand curve. A demand shock can take one of two forms--a demand increase or a demand decrease. This is one of two disruptions of the market. The other is a supply shock.

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Today, you are likely to spend a great deal of time at an auction trying to buy either storage boxes for your winter clothes or several magazines on time travel. Be on the lookout for crowded shopping malls.
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The earliest known use of paper currency was about 1270 in China during the rule of Kubla Khan.
"Man is born to live, not to prepare for life. "

-- Boris Pasternak, writer

OAS
Organization of American States
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