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AGGREGATE EXPENDITURE LINE: A line representing the relation between aggregate expenditures and gross domestic product used in the Keynesian cross. The aggregate expenditure line is obtained by adding investment expenditures, government purchases, and net exports to the consumption line. As such, the slope of the aggregate expenditure line is largely based on the slope of the consumption line (which is the marginal propensity to consume), with adjustments coming from the marginal propensity to invest, the marginal propensity for government purchases, and the marginal propensity to import. The intersection of the aggregate expenditures line and the 45-degree line identifies the equilibrium level of output in the Keynesian cross.
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ABSTRACTION Simplifying the complexities of the real world by ignoring (hopefully) unimportant details while doing economic analysis. Abstraction is an essential feature of the scientific method. Hypothesis verification, model construction, and comparative static analysis are not possible without abstraction.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time searching the newspaper want ads hoping to buy either a pair of red goulashes with shiny buckles or a handcrafted bird feeder. Be on the lookout for neighborhood pets, especially belligerent parrots.
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Natural gas has no odor. The smell is added artificially so that leaks can be detected.
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"No task is a long one but the task on which one dare not start: It becomes a nightmare. " -- Charles Baudelaire, poet-critic
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IIPF
International Institute of Public Finance
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