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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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MARKET FAILURES Imperfections in the exchange process between buyers and sellers that prevent markets from efficiently allocating scarce resources. Market failures come in four varieties -- public goods, market control, externalities, and imperfect information. Market efficiency is achieved if the value of goods produced is equal to the value of foregone production. Markets fail when this efficiency condition is not achieved. Such failures can only be corrected by government intervention.
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BLACK DISMALAPOD
[What's This?]
Today, you are likely to spend a great deal of time going from convenience store to convenience store trying to buy either a replacement remote control for your stereo system or a computer that can play video games and burn DVDs. Be on the lookout for pencil sharpeners with an attitude.
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This isn't me! What am I?
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In the late 1800s and early 1900s, almost 2 million children were employed as factory workers.
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"An organization's ability to learn, and translate that learning into action rapidly, is the ultimate competitive business advantage. " -- Jack Welch, General Electric chief executive
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WIPO
World Intellectual Property Organization
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