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PERFECTLY INELASTIC: An elasticity alternative in which changes in price do NOT cause any change in quantity. In other words, quantity is totally, completely unresponsive to price. Quantity just does not change, regardless of changes in price. Perfectly inelastic should be compared with other elasticity alternatives--perfectly elastic, relatively elastic, relatively inelastic, and unit elastic.

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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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YELLOW CHIPPEROON
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Today, you are likely to spend a great deal of time watching infomercials trying to buy either a black duffle bag with velcro closures or any book written by Isaac Asimov. Be on the lookout for the last item on a shelf.
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This isn't me! What am I?

Al Capone's business card said he was a used furniture dealer.
"The difference between the impossible and the possible lies in a person's determination. "

-- Tommy Lasorda

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