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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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MARKET CLEARING A condition of the market in which the quantity demanded is equal to the quantity supplied, such that the market is "clear" of any shortage or surplus. Market clearing is a common, non-technical term for equilibrium. In a market graph, the market clearing is found at the intersection of the demand curve and the supply curve.
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GRAY SKITTERY
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Today, you are likely to spend a great deal of time calling an endless list of 800 numbers hoping to buy either an AC adapter for your CD player or storage boxes for your family photos. Be on the lookout for defective microphones.
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This isn't me! What am I?
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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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"Don't judge each day by the harvest you reap but by the seeds that you plant. " -- Robert Louis Stephenson, writer
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Y
Income, Nominal Gross National Product
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