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LOCATION THEORY: A theoretical framework for studying the location decisions made of firms and households based on transportation cost and spatial differences in the accessibility of inputs and markets for outputs. Location theory, developed with noted contributions from August Losch, Alfred Weber, Johann von Thunen, Walter Christaller, and Walter Isard, explicitly considers the cost of transportation in the production and consumption choices made by firms and households. Location theory has been used to explain urban density, labor migration, and land use.

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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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APLS

YELLOW CHIPPEROON
[What's This?]

Today, you are likely to spend a great deal of time flipping through the yellow pages wanting to buy either a velvet painting of Elvis Presley or a wall poster commemorating yesterday. Be on the lookout for bottles of barbeque sauce that act TOO innocent.
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This isn't me! What am I?

Lombard Street is London's equivalent of New York's Wall Street.
"If football taught me anything about business, it is that you win the game one play at a time."

-- Fran Tarkenton, Football Player

LRAS
Long Run Aggregate Supply
A PEDestrian's Guide
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