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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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CHANGE IN DEMAND A shift of the demand curve caused by a change in one of the demand determinants. A change in demand is caused by any factor affecting demand EXCEPT price. A related, but distinct, concept is a change in quantity demanded.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time surfing the Internet wanting to buy either a weathervane with a horse on top or a case of blank recordable DVDs. Be on the lookout for slightly overweight pizza delivery guys.
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This isn't me! What am I?
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John Maynard Keynes was born the same year Karl Marx died.
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"Progress begins with the belief that what is necessary is possible. " -- Norman Cousins, editor, writer
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DVP
Discounted Present Value
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