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SAVING-INVESTMENT MODEL: A model used to identify equilibrium in Keynesian economics based on injections (investment, I) and leakages (saving, S) for the two basic sectors (household and business). Equilibrium is achieved at the intersection of the saving line, S, and the investment line, I.

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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

RED AGGRESSERINE
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Today, you are likely to spend a great deal of time surfing the Internet looking to buy either a birthday greeting card for your grandfather or a weathervane with a cow on top. Be on the lookout for slightly overweight pizza delivery guys.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
"Argue for your limitations, and sure enough, they're yours."

-- Richard Bach

KLIC
Kullback-Leibler Information Criterion
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