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January 31, 2026 

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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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PERFECT COMPETITION, SHUTDOWN

A perfectly competitive firm is presumed to shutdown production and produce no output in the short run, if price is less than average variable cost. This is one of three short-run production alternatives facing a firm. The other two are profit maximization (if price exceeds average total cost) and loss minimization (if price is greater than average variable cost but less than average total cost).

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BEIGE MUNDORTLE
[What's This?]

Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors hoping to buy either a pair of leather sandals that won't cause blisters or clothing for your kitty cats. Be on the lookout for door-to-door salesmen.
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This isn't me! What am I?

A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
"To understand a man, you must know his memories. The same is true of a nation."

-- Anthony Quayle, Actor

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