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AGGREGATE EXPENDITURE EQUATION: An equation indicating that aggregate expenditures (AE) are the sum of consumption expenditures (C), investment expenditures (I), government purchases (G), and net exports (X-M), stated as: AE = C + I + G + (X-M). This equation surfaces in the Keynesian economic income-expenditure model in the form of the aggregate expenditures line. However, it's also central throughout the study of macroeconomics, including aggregate demand and the measurement of gross domestic product.
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ASSUMPTIONS, CLASSICAL ECONOMICS Classical economics, especially as directed toward macroeconomics, relies on three key assumptions--flexible prices, Say's law, and saving-investment equality. Flexible prices ensure that markets adjust to equilibrium and eliminate shortages and surpluses. Say's law states that supply creates its own demand and means that enough income is generated by production to purchase the resulting production. The saving-investment equality ensures that any income leaked from consumption into saving is replaced by an equal amount of investment. Although of questionable realism, these three assumptions imply that the economy would operate at full employment.
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BLUE PLACIDOLA
[What's This?]
Today, you are likely to spend a great deal of time wandering around the downtown area trying to buy either rechargeable batteries or a rechargeable battery for your computer. Be on the lookout for the last item on a shelf.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
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"Argue for your limitations, and sure enough, they're yours." -- Richard Bach
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L/I
Letter of Intent
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