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AGGREGATE DEMAND CURVE: A graphical representation of the relation between aggregate expenditures on real production and the price level, holding all ceteris paribus aggregate demand determinants constant. The aggregate demand, or AD, curve is one side of the graphical presentation of the aggregate market. The other side is occupied by the aggregate supply curve (which is actually two curves, the long-run aggregate supply curve and the short-run aggregate supply curve). The negative slope of the aggregate demand curve captures the inverse relation between aggregate expenditures on real production and the price level. This negative slope is attributable to the interest-rate effect, real-balance effect, and net-export effect.
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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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BLACK DISMALAPOD
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Today, you are likely to spend a great deal of time watching infomercials seeking to buy either an electric coffee pot with automatic shutoff or a brown leather attache case. Be on the lookout for crowded shopping malls.
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Much of the $15 million used by the United States to finance the Louisiana Purchase from France was borrowed from European banks.
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"The time to repair the roof is when the sun is shining." -- John F. Kennedy, 35th U. S. president
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EFTA
European Free Trade Association
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