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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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TWO-SECTOR, THREE-MARKET CIRCULAR FLOW A circular flow model of the macroeconomy containing two sectors (business and household) and three markets (product, factor, and financial) that illustrates the continuous movement of the payments for goods and services between producers and consumers, with particular emphasis on saving, investment, and the role of financial markets. Other circular models are two-sector, two-market circular flow; three-sector, three-market circular flow; and four-sector, three-market circular flow.
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BLUE PLACIDOLA
[What's This?]
Today, you are likely to spend a great deal of time flipping through mail order catalogs trying to buy either a graduation present for your niece or nephew or a toaster oven that has convection cooking. Be on the lookout for rusty deck screws.
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A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
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"The past cannot be changed. The future is yet in your power. " -- Hugh White, U.S. Senator
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NBER
National Bureau of Economic Research
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