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EFFECTIVE DEMAND: The notion that the actual demand for aggregate output in the macroeconomy is based on the actual income or other existing economic conditions and not on income and conditions existing in equilibrium. The idea of effective demand plays a key role in Keynesian economics and how the macroeconomy can have extended periods of unemployment. Effective demand is in direct contrast to the view underlying classical economics that demand is that existing in equilibrium.
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SIGNALLING When confronted by asymmetric information, the use of small bits of information, or indicators, that suggest more comprehensive information. Signalling is used by those with more information to reduce the cost of informing those with less information. It is commonly used in markets with adverse selection. Methods of signalling include advertising, brand names, and warranties. A related method is screening.
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BROWN PRAGMATOX
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Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway seeking to buy either a T-shirt commemorating next Thursday or a birthday gift for your uncle. Be on the lookout for letters from the Internal Revenue Service.
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A communal society, a prime component of Karl Marx's communist philosophy, was advocated by the Greek philosophy Plato.
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"When you play, play hard; when you work, don't play at all. " -- Theodore Roosevelt, 26th US president
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JET
Journal of Economic Theory
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