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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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AUTONOMOUS CONSUMPTION

Household consumption expenditures that do not depend on income or production (especially disposable income, national income, or even gross domestic product). That is, changes in income do not generate changes in consumption. Autonomous consumption is best thought of as a baseline or minimum level of consumption that the household sector undertakes in the unlikely event that income falls to zero. It is measured by the intercept term of the consumption function or the consumption line. The alternative to autonomous consumption is induced consumption, which does depend on income.

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GREEN LOGIGUIN
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Today, you are likely to spend a great deal of time strolling through a department store seeking to buy either a birthday gift for your grandmother or a T-shirt commemorating yesterday. Be on the lookout for defective microphones.
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John Maynard Keynes was born the same year Karl Marx died.
"Follow effective action with quiet reflection. From the quiet reflection will come even more effective action. "

-- Peter F. Drucker, author

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