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TANGENCY: A geometric condition that occurs when two curves touch at a single point with identical slopes at that point. This condition of tangency surfaces in several different areas of economic analysis, including indifference curve analysis (tangency between an indifference curve and budget line) and monopolistic competition (tangency between demand curve and long-run average cost curve). The tangency between two curves should be contrasted with the condition of intersection, in which two cross at a single point but do not have identical slopes.
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PLASTIC MONEY A slang phrase for credit cards, especially when such cards used to make purchases. The "plastic" portion of this term refers to the plastic construction of credit cards, as opposed to paper and metal of currency. The "money" portion is an erroneous reference to credit cards as a form of money, which they are not. Although credit cards do facilitate transactions, because they are a liability rather than an asset, they are not money and not part of the economy's money supply.
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BLUE PLACIDOLA
[What's This?]
Today, you are likely to spend a great deal of time touring the new suburban shopping complex hoping to buy either a lazy Susan for you dining room table or a set of serrated steak knives, with durable plastic handles. Be on the lookout for rusty deck screws.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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"Sometimes when you innovate, you make mistakes. It is best to admit them quickly and get on with improving your other innovations. " -- Steve Jobs, Apple Computer founder
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MBA
Master of Business Administration
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