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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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SIGNALLING When confronted by asymmetric information, the use of small bits of information, or indicators, that suggest more comprehensive information. Signalling is used by those with more information to reduce the cost of informing those with less information. It is commonly used in markets with adverse selection. Methods of signalling include advertising, brand names, and warranties. A related method is screening.
Complete Entry | Visit the WEB*pedia |
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WHITE GULLIBON
[What's This?]
Today, you are likely to spend a great deal of time driving to a factory outlet seeking to buy either a key chain with a built-in flashlight and panic button or a green and yellow striped sweater vest. Be on the lookout for letters from the Internal Revenue Service.
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This isn't me! What am I?
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The average length of a "business lunch" is about 36 minutes.
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"In a restless, creative business with an emphasis on experiment and development, ideas are the lifeblood." -- Richard Branson, Virgin Group founder
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NAIRU
Non-Accelerating Inflation Rate of Unemployment
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