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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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BARTER ECONOMY

An economy that trades goods and services predominately using barter exchanges rather than money. Barter economies predated the invention of money, emerging out the early stage of self-sufficiency before giving way to the use of commodity money. However, barter economies occasionally surface in modern times, especially when the public loses confidence in the monetary unit during a government crises or a period of hyperinflation.

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BLUE PLACIDOLA
[What's This?]

Today, you are likely to spend a great deal of time at a flea market seeking to buy either one of those memory foam pillows or a remote controlled train set. Be on the lookout for spoiled cheese hiding under your bed hatching conspiracies against humanity.
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This isn't me! What am I?

Lewis Carroll, the author of Alice in Wonderland, was the pseudonym of Charles Dodgson, an accomplished mathematician and economist.
"Learn to enjoy every minute of your life. Be happy now. Don't wait for something outside of yourself to make you happy in the future. Think how really precious is the time you have to spend, whether it's at work or with your family. Every minuteshould be enjoyed and savored."

-- Earl Nightingale

LRMC
Long Run Marginal Cost
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