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ABSTRACTION METHODS: Abstraction is the process of simplifying the complexities of the real world by ignoring (hopefully) unimportant details, especially (for our purposes) while doing economic analysis. Three common methods of actual, real world abstraction used in economic theories are words, graphs, and equations. Words can be misunderstood. Graphs are a little more precise. And equations tend to be the most precise of the three.
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ASYMMETRIC INFORMATION Information is not equally available to everyone. Asymmetric information results because efficient information search inevitably stops short of compete information. Some people obtain more benefits from information than others, are willing to incur higher search costs, and thus end up knowing more. Or they incur lower information search costs and have easier access to the information. In a market, sellers tend to have more information about the good than buyers. Asymmetric information gives rise to adverse selection, moral hazard, and the principal-agent problem. These problems can be lessened through signalling and screening.
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RED AGGRESSERINE
[What's This?]
Today, you are likely to spend a great deal of time touring the new suburban shopping complex trying to buy either a how-to book on wine tasting or a bookshelf that will fit in your closet. Be on the lookout for crowded shopping malls.
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This isn't me! What am I?
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The first paper currency used in North America was pasteboard playing cards "temporarily" authorized as money by the colonial governor of French Canada, awaiting "real money" from France.
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"I was always looking outside myself for strength and confidence, but it comes from within. It is there all the time. " -- Anna Freud, psychologist
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SUR
Seemingly Unrelated Regressions
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