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ABSTRACTION: Simplifying the complexities of the real world by ignoring (hopefully) unimportant details while doing economic analysis. Abstraction is often criticized because it's, well, it's JUST NOT REALISTIC. However, when done correctly (ignoring things that JUST DON'T MATTER), then the pursuit of knowledge is greatly enhanced by abstraction. For example, when travelling cross country along a high-speed interstate highway, a paper road map is a handy tool. It shows towns and cities along the way, the major intersections, rest stop locations, and other important points of interest. However, it ignores unimportant details. It doesn't realistically show the location of every tree, bush, or blade of grass. Why bother? This information won't enhance your road trip.
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AGGREGATE DEMAND The total real expenditures on final goods and services produced in the domestic economy that buyers are willing and able to undertake at different price levels, during a given time period (usually a year). Aggregate demand, usually abbreviated AD, is an inverse relation between price level and aggregate expenditures. This is one half of the AS-AD (aggregate market) analysis. The other half is aggregate supply. Aggregate demand consists of four aggregate expenditures--consumption expenditures, investment expenditures, government purchases, and net exports--made by the four macroeconomic sectors--household, business, government, and foreign.
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BROWN PRAGMATOX
[What's This?]
Today, you are likely to spend a great deal of time surfing the Internet seeking to buy either an AC adapter that won't fry your computer or a case for your designer sunglasses. Be on the lookout for small children selling products door-to-door.
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This isn't me! What am I?
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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"We must be willing to let go of the life we have planned, so as to have the life that is waiting for us. " -- E. M. Forster, writer
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LPG
Liquid Petroleum Gas
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