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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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Lesson 10: Gross Domestic Product | Unit 5: Issues Page: 23 of 25

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The study of gross domestic product is important for at least for two reasons.
  • First, Scarcity. Real GDP indicates how well the economy is addressing the economic problem of scarcity.
  • Second, Stability. Real GDP is a key measurement for analyzing economic instability and business cycles.

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AGGREGATE EXPENDITURES EQUATION

An equation that summarizes the four aggregate expenditures on gross domestic product by the four macroeconomic sectors. In the study of Keynesian economics, this equation is commonly used to summarize the demand side of the macroeconomy. The aggregate expenditures equation actually comes in three different versions depending on how many of the four sectors and their expenditures are included.

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BLUE PLACIDOLA
[What's This?]

Today, you are likely to spend a great deal of time calling an endless list of 800 numbers looking to buy either a rim for your spare tire or decorative celebrity figurines. Be on the lookout for fairy dust that tastes like salt.
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This isn't me! What am I?

Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
"Man is born to live, not to prepare for life. "

-- Boris Pasternak, writer

Q-RATIO
Ratio of Total Market Value of Physical Assets
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