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A: The common notation for the "intercept" term of an equation specified as Y = a + bX. Mathematically, the a-intercept term indicates the value of the Y variable when the value of the X variable is equal to zero. Theoretically, the a-intercept is frequently used to indicate exogenous or independent influences on the Y variable, that is, influences that are independent of the X variable. For example, if Y represents consumption and X represents national income, a measures autonomous consumption expenditures.
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DERIVATION, AGGREGATE EXPENDITURES LINE An aggregate expenditures line, a graphical depiction of the relation between aggregate expenditures and the level of aggregate income or production, can be derived by sequentially adding expenditures by the four macroeconomic sectors (household, business, government, and foreign). This derivation process begins with the consumption line, then adds investment, government purchases, and finally net exports. The process actually generates three alternative aggregate expenditures lines based on the number of sectors included (two sector, three sector, and four sector).
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time searching for a specialty store looking to buy either a pair of gray heavy duty boot socks or a 50-foot blue garden hose. Be on the lookout for pencil sharpeners with an attitude.
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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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"Learning is not compulsory, but neither is survival. " -- W. Edwards Deming, management consultant
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ABE
Association of Business Executives
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