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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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TOTAL PRODUCT The total quantity of output produced by a firm for a given quantity of inputs. Total product is the foundation upon which the analysis of short-run production for a firm is based. The usual framework is to analyze total product when a variable input (labor) changes, while a fixed input (capital) does not change. Two related concepts derived from total product are average product and marginal product.
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A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
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"It has been my philosophy of life that difficulties vanish when faced boldly. " -- Isaac Asimov
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AFEA
American Farm Economic Association
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