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RIVAL CONSUMPTION: Consumption of a good by one person imposes a cost on, or prevents consumption of the good by, another person. Some goods, like food, have extremely rival consumption. One person, and only one person, gets the benefit. Other goods, like national defense, have no consumption rivalry, everyone can benefit simultaneously without imposing a cost on others. This is one of the two key characteristics of a good (the other is excludability) that distinguishes between common-property goods, near-public goods, private goods, and public goods.

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GOVERNMENT PURCHASES LINE

A graphical depiction of the relation between government purchases by the government sector and the economy's aggregate level of income or production. This relation plays a key role in the study of Keynesian economics. A government purchases line is characterized by vertical intercept, which indicates autonomous government purchases, and slope, which is the marginal propensity for government purchases and indicates induced government purchases. The aggregate expenditures line used in Keynesian economics is derived by adding or stacking the government purchases line onto the consumption line, as well as investment expenditures and net exports.

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Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway seeking to buy either throw pillows for your living room sofa or a hepa filter for your furnace. Be on the lookout for door-to-door salesmen.
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The word "fiscal" is derived from a Latin word meaning "moneybag."
"In war, there is no second prize for the runner-up."

-- Omar Bradley, US Army general

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