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AGGREGATE DEMAND CURVE: A graphical representation of the relation between aggregate expenditures on real production and the price level, holding all ceteris paribus aggregate demand determinants constant. The aggregate demand, or AD, curve is one side of the graphical presentation of the aggregate market. The other side is occupied by the aggregate supply curve (which is actually two curves, the long-run aggregate supply curve and the short-run aggregate supply curve). The negative slope of the aggregate demand curve captures the inverse relation between aggregate expenditures on real production and the price level. This negative slope is attributable to the interest-rate effect, real-balance effect, and net-export effect.

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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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Today, you are likely to spend a great deal of time going from convenience store to convenience store hoping to buy either a pair of leather sandals that won't cause blisters or clothing for your kitty cats. Be on the lookout for small children selling products door-to-door.
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On a typical day, the United States Mint produces over $1 million worth of dimes.
"I not only use all the brains that I have, but all that I can borrow. "

-- Woodrow Wilson, 28th US president

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