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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 EXPENDITURES DETERMINANTS Ceteris paribus factors, other than aggregate income or production, that are held constant when the aggregate expenditures line is constructed and which cause the aggregate expenditures line to shift when they change. Some of the more important aggregate expenditures determinants are interest rates, expectations, fiscal policy, wealth, and exchange rates.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time browsing through a long list of dot com websites seeking to buy either a cell phone case or a pair of designer sunglasses. Be on the lookout for slow moving vehicles with darkened windows.
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This isn't me! What am I?
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The earliest known use of paper currency was about 1270 in China during the rule of Kubla Khan.
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"Be a yardstick of quality. Some people aren't used to an environment where excellence is expected. " -- Steve Jobs, Apple Computer co-founder
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CES
Constant Elasticity of Substitution
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