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DEMAND ELASTICITY AND TOTAL EXPENDITURE: The notion that price-induced changes in total expenditure for a good (price times quantity) depends on the relative price elasticity of demand. In particular, for relatively elastic demand (1 < E < ∞) changes in price cause total expenditure to change in the opposite direction. An increase in price causes total expenditure to fall and a decrease in price causes total expenditure to rise. For relatively inelastic demand (0 < E < 1) changes in price cause total expenditure to change in the same direction. An increase in price causes total expenditure to rise and a decrease in price causes total expenditure to fall. For unit elastic demand (E =1) price changes do not cause any change in total expenditure. Total expenditure is the same whether price increases or decreases.
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MARGINAL COST AND LAW OF DIMINISHING MARGINAL RETURNS Decreasing then increasing marginal cost, reflected by a U-shaped marginal cost curve, is the result of increasing then decreasing marginal returns. In particular the decreasing marginal returns is caused by the law of diminishing marginal returns. As such, the law of diminishing marginal returns affects not only the short-run production of a firm but also the cost of short-run production. This translates into a positively-sloped supply curve for profit-maximizing competitive firms.
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ORANGE REBELOON
[What's This?]
Today, you are likely to spend a great deal of time driving to a factory outlet looking to buy either a New York Yankees baseball cap or a solid oak entertainment center. Be on the lookout for malfunctioning pocket calculators.
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In 1914, Ford paid workers who were age 22 or older $5 per day -- double the average wage offered by other car factories.
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"Nothing great has ever been achieved except by those who dared believe that something inside them was superior to circumstances. " -- Bruce Barton, Advertising executive
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GARCH
Generalized Autoregressive Conditional Heteroskedasticity
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