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OLIGOPOLY, CONCENTRATION: Oligopoly is a market structure that contains a small number of relatively large firms, meaning oligopoly markets tend to be concentrated. A small number of large firms account for a majority of total output. Concentration unto itself is not necessarily bad, but it often leads to inefficient behavior, such as collusion and nonprice competition. Concentration is measured in three ways--market share, concentration ratio, Herfindahl index.

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SEVEN ECONOMIC RULES

A set of seven fundamental notions that reflect the study of economics and how the economy operates. They are: (1) scarcity, (2) subjectivity, (3) inequality, (4) competition, (5) imperfection, (6) ignorance, and (7) complexity.

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APLS

PINK FADFLY
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Today, you are likely to spend a great deal of time calling an endless list of 800 numbers trying to buy either a blue mechanical pencil or super soft, super cuddly, stuffed animals. Be on the lookout for spoiled cheese hiding under your bed hatching conspiracies against humanity.
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Okun's Law posits that the unemployment rate increases by 1% for every 2% gap between real GDP and full-employment real GDP.
"It takes generosity to discover the whole through others. If you realize you are only a violin, you can open yourself up to the world by playing your role in the concert. "

-- Jacques Yves Cousteau, marine explorer

NORC
National Opinion Research Center
A PEDestrian's Guide
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