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MARGINAL REVENUE, PERFECT COMPETITION: The change in total revenue resulting from a change in the quantity of output sold. Marginal revenue indicates how much extra revenue a perfectly competitive firm receives for selling an extra unit of output. It is found by dividing the change in total revenue by the change in the quantity of output. Marginal revenue is the slope of the total revenue curve and is one of two revenue concepts derived from total revenue. The other is average revenue. To maximize profit, a perfectly competitive firm equates marginal revenue and marginal cost.

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AGGREGATE SUPPLY INCREASE, LONG-RUN AGGREGATE MARKET

A shock to the long-run aggregate market caused by an increase in aggregate supply, resulting in and illustrated by a rightward shift of the long-run aggregate supply curve. An increase in aggregate supply in the long-run aggregate market results in a decrease in the price level and an increase in real production. The level of real production resulting from the shock is a greater level of full-employment real production.

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Today, you are likely to spend a great deal of time browsing about a thrift store seeking to buy either a bookshelf that will fit in your closet or a birthday greeting card for your grandfather. Be on the lookout for cardboard boxes.
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The word "fiscal" is derived from a Latin word meaning "moneybag."
"I believe that every right implies a responsibility, every opportunity, an obligation, every possession, a duty. "

-- John D. Rockefeller, industrialist

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