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GROSS DOMESTIC INCOME: The total market value of all final goods and services produced within the political boundaries of an economy during a given period of time, usually a year, as calculated using the income approach to measuring gross domestic product. Gross domestic income, abbreviated GDI, is virtually identical to gross domestic product (GDP), with one minor difference, the statistical discrepancy. As a matter of fact, the statistical discrepancy is identified as the difference between GDP and GDI.

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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 searching for rummage sales wanting to buy either several orange mixing bowls or clothing for your pet dog. Be on the lookout for slightly overweight pizza delivery guys.
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Only 1% of the U.S. population paid income taxes when the income tax was established in 1914.
"If I'm selecting a group, the first thing I look for is a record of achievement . . . If (candidates achieve) in small things, there's a very good chance they'll perform well in big things. "

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