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ECONOMIC THINKING: A way of looking at, and analyzing, the way the world works by comparing the costs of an action with the benefits generated. Economic thinking arises from scarcity, which exists because wants and needs and unlimited but resources are limited. This means virtually all actions incur an opportunity cost. Identifying the cost of an action, no matter how hidden or subtle it may be, is the essence of economic thinking.
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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.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time going from convenience store to convenience store seeking to buy either rechargeable batteries or a rechargeable battery for your computer. Be on the lookout for cardboard boxes.
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This isn't me! What am I?
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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"Rowing harder doesn't help if the boat is headed in the wrong direction. " -- Kenichi Ohmae, management consultant
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SPE
Subgame Perfect Equilibrium
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