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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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FIAT MONEY A medium of exchange (money) with value in exchange, but little or no value in use. Modern paper currency, coins, and checkable deposits are fiat money. The value of fiat money comes from the public's general willingness to accept it in exchange for other goods. This willingness comes from the fact that EVERYONE is willing to accept fiat money in exchange, which largely depends on the public's confidence in the authority (usually government) issuing the fiat money. Fiat money is NOT valuable unto itself, but it is valuable for what it can buy. In the march toward economic complexity, fiat money emerged from commodity money, money with both value in exchange and value in use.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time searching for a specialty store hoping to buy either a video game player or an AC adapter that won't fry your computer. Be on the lookout for strangers with large satchels of used undergarments.
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This isn't me! What am I?
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The New York Stock Exchange was established by a group of investors in New York City in 1817 under a buttonwood tree at the end of a little road named Wall Street.
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"The will to win is important, but the will to prepare is vital. " -- Joe Paterno, football coach
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MU
Marginal Utility
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