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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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MARKET FOR LEMONS A market adversely selects only lower quality products for exchange. The market for lemons is an illustration of adverse selection that results from asymmetric information. In this market, because buyers have limited information they offer an average price based on the average quality of the goods. Sellers, however, with better information select to sell lower quality products but not higher quality ones. Two methods of address this problem are signalling and screening. Two related information problems are moral hazard and the principal-agent problem.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time at an auction trying to buy either a small palm tree that will fit on your coffee table or several magazines on fashion design. Be on the lookout for the last item on a shelf.
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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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"When the solution is simple, God is answering." -- Albert Einstein
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FOMC
Federal Open Market Committee
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