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VARIABLE INPUT: An input whose quantity can be changed in the time period under consideration. This should be immediately compared and contrasted with fixed input. The most common example of a variable input is labor. A variable input provides the extra inputs that a firm needs to expand short-run production. In contrast, a fixed input, like capital, provides the capacity constraint in production. As larger quantities of a variable input, like labor, are added to a fixed input like capital, the variable input becomes less productive. This is, by the way, the law of diminishing marginal returns.
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INVESTMENT LINE A graphical depiction of the relation between investment expenditures by the business sector and the economy's aggregate level of income or production. This relation plays a key role in the study of Keynesian economics. A investment line is characterized by vertical intercept, which indicates autonomous investment, and slope, which is the marginal propensity to invest and indicates induced investment. The aggregate expenditures line used in Keynesian economics is derived by adding or stacking the investment line onto the consumption line, then adding government purchases and net exports to this stack.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time searching for rummage sales wanting to buy either storage boxes for your family photos or a large, stuffed giraffe. Be on the lookout for malfunctioning pocket calculators.
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The average length of a "business lunch" is about 36 minutes.
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"Be a yardstick of quality. Some people aren't used to an environment where excellence is expected. " -- Steve Jobs, Apple Computer co-founder
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BQ
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