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AGGREGATE EXPENDITURE EQUATION: An equation indicating that aggregate expenditures (AE) are the sum of consumption expenditures (C), investment expenditures (I), government purchases (G), and net exports (X-M), stated as: AE = C + I + G + (X-M). This equation surfaces in the Keynesian economic income-expenditure model in the form of the aggregate expenditures line. However, it's also central throughout the study of macroeconomics, including aggregate demand and the measurement of gross domestic product.
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FREE-RIDER PROBLEM A problem underlying the provision of public goods that occurs when a person consumes or benefits from a good without making payment. The free-rider problem is the primary reason that public goods are produced by governments. Because public goods are characterized by the inability to exclude nonpayers, once a public good is produced anyone, everyone, can consume without making payment, that is, get a "free ride." Voluntary payments like those occurring in markets will not provide enough revenue to pay production costs. The only way to finance public goods is to force free-riders, and everyone else, to pay through government taxes. The free-rider problem also applies to common-property goods.
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PURPLE SMARPHIN
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Today, you are likely to spend a great deal of time at the confiscated property police auction wanting to buy either a birthday greeting card for your grandfather or a weathervane with a cow on top. Be on the lookout for a thesaurus filled with typos.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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"Don't judge each day by the harvest you reap, but by the seeds you plant." -- Robert Louis Stevenson, Author
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RCPC
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