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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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SLOPE, AGGREGATE EXPENDITURES LINE The positive slope of the aggregate expenditures line is the sum of the marginal propensity to consume (MPC), marginal propensity to invest (MPI), and marginal propensity for government purchases (MPG), less the marginal propensity to import (MPM). This slope is greater than zero but less than one, reflecting induced expenditures by the four macroeconomic sectors (household, business, government, and foreign). The slope of the aggregate expenditures line determines the magnitude of the multiplier process.
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RED AGGRESSERINE
[What's This?]
Today, you are likely to spend a great deal of time at an auction trying to buy either shoe laces for your snow boots or a rim for your spare tire. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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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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"To understand a man, you must know his memories. The same is true of a nation." -- Anthony Quayle, Actor
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AR(N)
A nth-order Autoregressive Process
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