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SIGNALLING: The use of low-cost, easy to obtain information about a product or commodity to indicate the quality of a product. Signalling occurs when buyers use features of a commodity or actions by the seller to indicate overall product quality. These signals can be either intended or unintended.
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ABSTRACTION Simplifying the complexities of the real world by ignoring (hopefully) unimportant details while doing economic analysis. Abstraction is an essential feature of the scientific method. Hypothesis verification, model construction, and comparative static analysis are not possible without abstraction.
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John Maynard Keynes was born the same year Karl Marx died.
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"Leadership is based on inspiration, not domination; on cooperation, not intimidation. " -- William A. Ward
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P/E Price-Earnings Ratio
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