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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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SCREENING When confronted by asymmetric information, the use of small bits of information, or indicators, that suggest more comprehensive information. Screening occurs when those with limited information try to identify indicators suggesting more complete information. It is used in markets with adverse selection and moral hazard, especially in labor markets and in the provision of insurance. Common methods of screening include aptitude tests, affiliations, past behavior, and personal characteristics. A related method is signalling.
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YELLOW CHIPPEROON
[What's This?]
Today, you are likely to spend a great deal of time touring the new suburban shopping complex looking to buy either a how-to book on home decorating or a set of luggage with wheels. Be on the lookout for the happiest person in the room.
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One of the largest markets for gold in the United States is the manufacturing of class rings.
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"Experience keeps a dear school, but fools will learn in no other. " -- Benjamin Franklin
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MFN
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