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AD CURVE: The aggregate demand curve, which is 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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ABILITY-TO-PAY PRINCIPLE

A taxation principle stating that taxes should be based on the ability to pay taxes. The ability-to-pay principle works from the proposition that those who have the greatest income should pay the most taxes. The ability-to-pay principle is the only reasonable way to finance the provision of public goods such as national defense, public health, and environmental quality. This is one of two taxation principles. The other is the benefit principle, which states taxes should be based on the benefits received.

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Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway looking to buy either a T-shirt commemorating the first day of winter or software that won't crash your computer. Be on the lookout for pencil sharpeners with an attitude.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
"Every time you win, it diminishes the fear a little bit. You never really cancel the fear of losing; you keep challenging it. "

-- Arthur Ashe, tennis player

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