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CHANGE IN INVENTORIES: The increase or decrease in the stocks of final goods, intermediate goods, raw materials, and other inputs that businesses keep on hand to use in production the occur because aggregate expenditures are not equal to aggregate output. Inventory changes play a key role in the Keynesian economics and the analysis of macroeconomic equilibrium. When inventory changes are zero, then aggregate expenditures are equal to aggregate output and there is no reason for the business sector to change the rate of production. Hence this is equilibrium.
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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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YELLOW CHIPPEROON
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Today, you are likely to spend a great deal of time at a dollar discount store looking to buy either a 50 foot extension cord or a combination CD player, clock radio, and telephone (with answering machine). Be on the lookout for letters from the Internal Revenue Service.
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Sixty percent of big-firm executives said the cover letter is as important or more important than the resume itself when you're looking for a new job
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"Adversity is another way to measure the greatness of individuals. I never had a crisis that didn't make me stronger. " -- Lou Holtz, Football Coach
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