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TANSTAAFL: A rather cumbersome and usually hard to remember acronym for the expression "There ain't no such thing as a free lunch. This is a favorite saving of many economists because it highlights, albeit in a grammatically questionable manner, the fundamental problem of scarcity. The phrase serves to emphasize that seemingly "free" lunches are not really free. While they might be free to the customer, someone must pay, that is, incur an opportunity cost of foregone production. The lunch eaten by one person cannot be eaten by another.

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MARGINAL REVENUE CURVE

A curve that graphically represents the relation between the marginal revenue received by a firm for selling its output and the quantity of output sold. A firm maximizes profit by producing the quantity of output found at the intersection of the marginal revenue curve and marginal cost curve. The marginal revenue curve for a firm with no market control is horizontal. The marginal revenue curve for a firm with market control is negatively sloped and lies below the average revenue curve.

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PINK FADFLY
[What's This?]

Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius 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 pencil sharpeners with an attitude.
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John Maynard Keynes was born the same year Karl Marx died.
"There's only one corner of the universe you can be certain of improving and that's your own self. "

-- Aldous Huxley, writer

WPO
Weakly Pareto Optimal
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