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October 24, 2026 

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UNDERGROUND ECONOMY: Illegal and unreported market transactions and productive activity that escape the watchful eyes of official record keepers. By most estimates, a substantial amount of productive activity takes place in the underground economy for the United States. Of course, these are only estimates because such activity, by definition, goes unreported. Were activity in the underground economy added to official activity in the "overground" economy, then gross domestic product could be boosted by as much as 25% to 50%, or more.

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PERFECT COMPETITION, SHORT-RUN SUPPLY CURVE

A perfectly competitive firm's supply curve is that portion of its marginal cost curve that lies above the minimum of the average variable cost curve. A perfectly competitive firm maximizes profit by producing the quantity of output that equates price and marginal cost. As such, the firm moves along its positively-sloped marginal cost curve in response to changing prices.

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APLS

BEIGE MUNDORTLE
[What's This?]

Today, you are likely to spend a great deal of time searching for a specialty store hoping to buy either an instructional DVD on learning to the play the oboe or a small, foam rubber football. Be on the lookout for high interest rates.
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This isn't me! What am I?

A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
"Do not let what you cannot do interfere with what you can do. "

-- John Wooden, basketball coach

FCLT
Functional Central Limit Theorem
A PEDestrian's Guide
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