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AGGREGATE DEMAND DETERMINANT: A ceteris paribus factor that affects aggregate demand, but which is assumed constant when the aggregate demand curve is constructed. Changes in any of the aggregate demand determinants cause the aggregate demand curve to shift. While a wide variety of specific ceteris paribus factors can cause the aggregate demand curve to shift, it's usually most convenient to group them into the four, broad expenditure categories -- consumption, investment, government purchases, and net exports. The reason is that changes in these expenditures are the direct cause of shifts in the aggregate demand curve. If any determinant affects aggregate demand it MUST affect one of these four expenditures.
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RETURNS TO SCALE Changes in production the occur when all resources are proportionately changed in the long run. Returns to scale come in three forms--increasing, decreasing, or constant based on whether the changes in production are proportionally more than, less than, or equal to the proportional changes in inputs. Returns to scale are the guiding principle for long-run production, playing a similar role that the law of diminishing marginal returns plays for short-run production.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time searching the newspaper want ads seeking to buy either a travel case for you toothbrush or a looseleaf notebook binder. Be on the lookout for vindictive digital clocks with revenge on their minds.
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This isn't me! What am I?
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Before 1933, the U.S. dime was legal as payment only in transactions of $10 or less.
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"Lead the life that will make you kindly and friendly to everyone about you, and you will be surprised what a happy life you will lead." -- Charles M. Schwab
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SUR
Seemingly Unrelated Regressions
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