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CHANGE IN AGGREGATE EXPENDITURES: The movement along an aggregate demand curve caused by a change in the price level. This should be contrasted directly with a change in aggregate demand. You might also want to review the terms change in quantity demanded and change in demand, as well. A change in aggregate expenditures means that we have identified a NEW level of expenditures on the existing aggregate demand curve. In contrast, a change in aggregate demand means that we have changed, moved, or shifted, the entire aggregate demand curve, the whole range of price levels and aggregate expenditures has changed.
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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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WHITE GULLIBON
[What's This?]
Today, you are likely to spend a great deal of time at the confiscated property police auction trying to buy either a how-to book on fine dining or a coffee cup commemorating the first day of winter. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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This isn't me! What am I?
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Rosemary, long associated with remembrance, was worn as wreaths by students in ancient Greece during exams.
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"If you wouldn't write it and sign it, don't say it." -- Earl Wilson, Columnist
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TFP
otal Factor Productivity
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