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INDEX: A measure of the relative average of a group of items compared to a given base value. Index measures are commonly used in economics to combine and compare diverse measures. One common type of index measure is for prices, such as the Consumer Price Index and the Dow Jones Industrial Average of corporate stock prices. Another noted type of index measure is to track macroeconomic activity, especially the index leading economic indicators. Indexes are usually weighted averages rather than simple arithmetic means that are measured relative to a base value or period. The Consumer Price Index, for example, measures the prices of consumer good, weighted by the quantities purchased. The value of a given period is then stated relative to a base year value, which generates a pure, "unitless" number in the range of 100 (give or take).
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ELASTIC The general relation between two variables in which relatively small changes in one variable (A) cause relatively large changes in another variable (B). Small changes in variable A cause relatively large changes in variable B or the percentage change in variable B is larger than the percentage change in variable A. This characterization of elasticity is most important for the price elasticity of demand and the price elasticity of supply. Elastic is one of two general elasticity relations between two variables. The other is inelastic.
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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time flipping through the yellow pages looking to buy either a flower arrangement for your aunt or a birthday greeting card for your uncle. Be on the lookout for florescent light bulbs that hum folk songs from the sixties.
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Three-forths of the gold mined each year is used to manufacture jewelry.
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"The time to repair the roof is when the sun is shining." -- John F. Kennedy, 35th U. S. president
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NEDO
National Economic Development Office
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