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ELASTICITY: The relative response of one variable to changes in another variable. The phrase "relative response" is best interpreted as the percentage change. For example, the price elasticity of demand, one of the more important applications of this concept in economics, is the percentage change in quantity demanded measured against the percentage change in price. Other notable economic elasticities are the price elasticity of supply, income elasticity of demand, and cross elasticity of demand.
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SAVING-INVESTMENT MODEL A variation of the Keynesian injections-leakages model that includes the two private sectors, the household sector and the business sector. This variation, more formally termed the two-sector injections-leakages model, captures the interaction between induced saving (and indirectly induced consumption expenditures) and autonomous investment expenditures. This model provides an alternative to the two-sector aggregate expenditures (Keynesian cross) analysis of the macroeconomy, including equilibrium, disequilibrium, and the multiplier. Equilibrium is identified as the intersection between the saving line and the investment line. Two related variations are the three-sector injections-leakages model and the four-sector injections-leakages model.
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YELLOW CHIPPEROON
[What's This?]
Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors trying to buy either a wall poster commemorating the 2000 Presidential election or a rechargeable flashlight. Be on the lookout for vindictive digital clocks with revenge on their minds.
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This isn't me! What am I?
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
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"The two most powerful warriors are patience and time. " -- Leo Tolstoy, author
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JEL
Journal of Economic Literature
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