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PERFECTLY INELASTIC: An elasticity alternative in which changes in price do NOT cause any change in quantity. In other words, quantity is totally, completely unresponsive to price. Quantity just does not change, regardless of changes in price. Perfectly inelastic should be compared with other elasticity alternatives--perfectly elastic, relatively elastic, relatively inelastic, and unit elastic.

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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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APLS

BROWN PRAGMATOX
[What's This?]

Today, you are likely to spend a great deal of time surfing the Internet seeking to buy either an AC adapter that won't fry your computer or a case for your designer sunglasses. Be on the lookout for small children selling products door-to-door.
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The portrait on the quarter is a more accurate likeness of George Washington than that on the dollar bill.
"We must be willing to let go of the life we have planned, so as to have the life that is waiting for us. "

-- E. M. Forster, writer

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