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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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UNSTABLE EQUILIBRIUM Equilibrium that is not restored if disrupted by an external force. Few economic models have an equilibrium that is unstable, reflecting the observation that the real world adapts to changes and maintains a fair degree of stability. However, there are situations where an unstable equilibrium more accurately reflects economic phenomena. The alternative to an unstable equilibrium is a stable equilibrium.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time strolling through a department store trying to buy either a genuine down-filled snow parka or throw pillows for your living room sofa. Be on the lookout for the happiest person in the room.
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One of the largest markets for gold in the United States is the manufacturing of class rings.
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"It's usually the last ounce of effort that tips the scales of success." -- Rick Beneteau
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NIPA
National Income and Product Accounts
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