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MARGINAL UTILITY AND DEMAND: An explanation of the law of demand and the negatively-sloped demand curve can be found in the analysis of marginal utility and especially the law of diminishing marginal utility. This explanation rests on two propositions. One, the law of diminishing marginal utility means that the marginal utility obtained from consuming a good declines as the quantity consumed increases. Two, the marginal utility of a good underlies the demand price that buyers are willing and able to pay for a good. When combined, these two propositions indicate that the demand price buyers are willing and able to pay for a good declines as the quantity demanded (and consumed) increases. And this is the law of demand.
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KEYNESIAN MODEL A macroeconomic model based on the principles of Keynesian economics that is used to identify the equilibrium level of, and analyze disruptions to, aggregate production and income. This model identifies equilibrium aggregate production and income as the intersection of the aggregate expenditures line and the 45-degree line. The Keynesian model comes in three basic variations designated by the number of macroeconomic sectors included--two-sector, three-sector, and four sector. The Keynesian model is also commonly presented in the form of injections and leakages in addition to the standard aggregate expenditures format. This model is used to analyze several important topics and issues, including multipliers, business cycles, fiscal policy, and monetary policy.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time looking for a downtown retail store trying to buy either a 200-foot blue garden hose or a video camera with stop action features. Be on the lookout for infected paper cuts.
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This isn't me! What am I?
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The first paper notes printed in the United States were in denominations of 1 cent, 5 cents, 25 cents, and 50 cents.
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"If you worried about falling off the bike, you'd never get on. " -- Lance Armstrong, bicycle racer
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EGARCH
Exponential Generalized Autoregressive Conditional Heteroskedasticity
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