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NET INCOME: A common term for profit, as the difference between total revenue and total cost. When used in the real world of business wheeling and dealing, this notion of net income general refers to accounting profit rather than economic profit. The "net" aspect of net income indicates that some (that something being cost) is deducted from total or "gross" income. Other common terms used in this same context are net revenue and net earnings.

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MARGINAL PRODUCTIVITY THEORY

A theory used to analyze the profit-maximizing quantity of inputs (that is, the services of factor of productions) purchased by a firm in the production of output. Marginal-productivity theory indicates that the demand for a factor of production is based on the marginal product of the factor. In particular, a firm is generally willing to pay a higher price for an input that is more productive and contributes more to output. The demand for an input is thus best termed a derived demand.

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Today, you are likely to spend a great deal of time going from convenience store to convenience store trying to buy either a desktop calendar with all federal and state holidays highlighted or a half-dozen helium filled balloons. Be on the lookout for small children selling products door-to-door.
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Helping spur the U.S. industrial revolution, Thomas Edison patented nearly 1300 inventions, 300 of which came out of his Menlo Park "invention factory" during a four-year period.
"Are you bored with life? Then throw yourself into some work you believe in with all your heart. Live for it, die for it, and you will find happiness that you had thought could never be yours. "

-- Dale Carnegie, writer

NI
National Income, Net Income
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