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June 15, 2026 

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ARP: The abbreviation for average revenue product, which is total revenue generated per unit of a variable input, keeping all other inputs unchanged. Average revenue product, usually abbreviated ARP, is found by dividing total revenue by the variable input. Average revenue product is most often used in the analysis of the demand for productive inputs.

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PERFECT COMPETITION, REALISM

Perfect competition is an idealized market structure that does NOT exist in the real world. While some real world industries might come relatively close to one or two of the four key characteristics of perfect competition, none matches all four sufficiently that they can be declared PERFECTLY competitively. Some industries come close on the large number of small firms and the identical product characteristics. A few industries have relatively good, although not perfect, information about prices and technology. However, almost all industries fall far short of the perfect mobility characteristics.

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APLS

PINK FADFLY
[What's This?]

Today, you are likely to spend a great deal of time wandering around the shopping mall wanting to buy either any book written by Isaac Asimov or a how-to book on building remote controlled airplanes. Be on the lookout for fairy dust that tastes like salt.
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This isn't me! What am I?

More money is spent on gardening than on any other hobby.
"Intense concentration hour after hour can bring out resources in people they didn't know they had. "

-- Edwin Land, inventor, entrepreneur

WPI
Wholesale Price Index
A PEDestrian's Guide
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