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INCOME: Revenue earned or received by households that can be used for consumption or saving. For the aggregate economy, earned income is termed national income, while received income is termed personal income. The key is that income for the aggregate economy is generated in the production of goods and services.

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HERFINDAHL INDEX

A measure of concentration of the production in an industry calculated as the sum of the squares of market shares for each firm. This is one method of summarizing the degree to which an industry is oligopolistic and the concentration of market control held by the largest firms in the industry. Two other measures of industry concentration are the four-firm concentration ratio and the eight-firm concentration ratio.

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Today, you are likely to spend a great deal of time calling an endless list of 800 numbers wanting to buy either a New York Yankees baseball cap or several magazines on home repairs. Be on the lookout for spoiled cheese hiding under your bed hatching conspiracies against humanity.
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On a typical day, the United States Mint produces over $1 million worth of dimes.
"After climbing a great hill, one finds many more hills to climb. "

-- Nelson Mandela, president of South Africa

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