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GOVERNMENT PURCHASES LINE: A graphical depiction of the relation between government purchases and national income (or gross domestic product) that plays a role in Keynesian economics and the Keynesian cross. The slope of this line is positive, greater than zero, less than one, and goes by the name marginal propensity for government purchases. The vertical intercept of this line is autonomous government purchases. The aggregate expenditures line used in the Keynesian cross is obtained by adding this government purchases line, as well as, investment expenditures and net exports, to the consumption line. The government purchases line is also combined with investment expenditures for the Keynesian saving-investment model.

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INDUSTRY

A group of firms producing goods or services that are close substitutes-in-consumption. The similarity of the products makes it possible to analyze the production in a market framework. An industry can be broadly defined, such as the manufacturing industry, or narrowly specified, such as the root beer industry. For most economic analysis the term industry is used interchangeably with the term market.

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RED AGGRESSERINE
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Today, you are likely to spend a great deal of time surfing the Internet hoping to buy either a green and yellow striped sweater vest or a Boston Red Sox baseball cap. Be on the lookout for celebrities who speak directly to you through your television.
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Lombard Street is London's equivalent of New York's Wall Street.
"He who truly knows has no occasion to shout. "

-- Leonardo da Vinci, painter, sculptor, architect, engineer

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Panel Study of Income Dynamics
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