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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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OLIGOPOLY, BEHAVIOR

Oligopolistic industries share several behavioral tendencies, including: (1) interdependence, (2) rigid prices, (3) nonprice competition, (4) mergers, and (5) collusion. In other words, each oligopolistic firm keeps a close eye on the decisions made by other firms in the industry (interdependence), are reluctant to change prices (rigid prices), but instead try to attract customers from the competition using incentives other than prices (nonprice competition), and when they get tired of competing with their competitors they are inclined to cooperate formally and legally (mergers) or informally and illegally (collusion).

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APLS

YELLOW CHIPPEROON
[What's This?]

Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club hoping to buy either a genuine down-filled pillow or one of those "hang in there" kitty cat posters. Be on the lookout for slightly overweight pizza delivery guys.
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This isn't me! What am I?

The standard "debt" notation I.O.U. does not mean "I owe you," but actually stands for "I owe unto..."
"The greatest barrier to success is the fear of failure."

-- Sven Goran Eriksson, writer

RTA
Regional Trading Arrangement
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