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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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AUTONOMOUS CONSUMPTION Household consumption expenditures that do not depend on income or production (especially disposable income, national income, or even gross domestic product). That is, changes in income do not generate changes in consumption. Autonomous consumption is best thought of as a baseline or minimum level of consumption that the household sector undertakes in the unlikely event that income falls to zero. It is measured by the intercept term of the consumption function or the consumption line. The alternative to autonomous consumption is induced consumption, which does depend on income.
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WHITE GULLIBON
[What's This?]
Today, you are likely to spend a great deal of time watching infomercials hoping to buy either a bottle of blackcherry flavored spring water or a travel case for you toothbrush. Be on the lookout for cardboard boxes.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
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"The only profit center is the customer. " -- Peter Drucker, management consultant
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BPEA
Brookings Papers on Economic Activity
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