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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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GOVERNMENT PURCHASES DETERMINANTS

Ceteris paribus factors, other than aggregate income or production, that are held constant when the government purchases line is constructed and which cause the government purchases line to shift when they change. Some of the more important government purchases determinants are fiscal policy and politics.

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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time at a flea market seeking to buy either a handcrafted spice rack or a cell phone case. Be on the lookout for neighborhood pets, especially belligerent parrots.
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Only 1% of the U.S. population paid income taxes when the income tax was established in 1914.
"The roots of education are bitter, but the fruit is sweet."

-- Aristotle, philosopher

PWAC
Present Worth of Annual Costs
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