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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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AVERAGE-MARGINAL RELATION

A mathematical connection between a marginal value and the corresponding average value stating that the change in the average value depends on a comparison between the average and the marginal. This mathematical relation between average and marginal surfaces throughout the study of economics, especially production (average product and marginal product), cost (average total cost and marginal cost), and revenue (average revenue and marginal revenue). A similar relation is that between a total value and the corresponding marginal value.

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APLS

GREEN LOGIGUIN
[What's This?]

Today, you are likely to spend a great deal of time watching the shopping channel looking to buy either a wall poster commemorating last Friday (you know why) or a country wreathe. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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John Maynard Keynes was born the same year Karl Marx died.
"The difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather a lack of will. "

-- Vince Lombardi

PWAC
Present Worth of Annual Costs
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