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A PRIORI: A presumption made before an analysis is undertaken, often based on experiences, beliefs, or deductions from seemingly self-evident propositions about how the world works. This is a Latin for assumption or axiom. A similar sounding, but opposite term is a posteriori, which is derived from observation or facts. For example, in the study of economics of crime you might assume, a priori, that people are basically "good", because that just seems to be part of human nature, and conclude, a posteriori, that people are more likely to commit crimes when the threat of capture and conviction is lower.
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MARGINAL REVENUE, MONOPOLISTIC COMPETITION The change in total revenue resulting from a change in the quantity of output sold. Marginal revenue indicates how much extra revenue a monopolistically competitive firm receives for selling an extra unit of output. It is found by dividing the change in total revenue by the change in the quantity of output. Marginal revenue is the slope of the total revenue curve and is one of two revenue concepts derived from total revenue. The other is average revenue. To maximize profit, a monopolistically competitive firm equates marginal revenue and marginal cost.
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Conserving Our NATURAL RESOURCESMona Mallard Duct Tape Industries, the world's a leading producer of duct tape (that all-purpose, omni-present, shiny gray tape), is located right here in Shady Valley. Perhaps you've heard that they recently developed a new-fangled form of duct tape that's certain to revolutionize duct tape as we know it. This revolutionary development has, however, created a "situation" that we, pedestrian explorers of the economy, should consider. Mona Mallard's new duct tape uses "quagliminium," a relatively limited mineral found only in the quaint and courteous Republic of Northwest Queoldiola. Prior to this duct tape development, quagliminium had only one use, as lubricant for OmniStraight shoestring straighteners. The Northwest Queoldiolan supplies were sufficient to lubricate shoestring straighteners well into the year 3000. As a duct tape input, though, quagliminium deposits will be exhausted in a scant 50 years. Should we, could we, allow Mona Mallard to exhaust the supply of quagliminium? If they do, how will future generations lubricate their shoestring straighteners? Should we call for a moratorium on quagliminium use?
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time calling an endless list of 800 numbers wanting to buy either a how-to book on home repairs or a large, stuffed kitty cat. Be on the lookout for a thesaurus filled with typos.
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This isn't me! What am I?
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
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"God gives talent; work transforms talent into genius. " -- Anna Pavlova, ballerina
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MSE
Minimum Efficient Scale
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