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AGGREGATE EXPENDITURES 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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MARGINAL REVENUE CURVE, PERFECT COMPETITION A curve that graphically represents the relation between the marginal revenue received by a perfectly competitive firm for selling its output and the quantity of output sold. Because a perfectly competitive firm is a price taker and faces a horizontal demand curve, its marginal revenue curve is also horizontal and coincides with its average revenue (and demand) curve. A perfectly competitive firm maximizes profit by producing the quantity of output found at the intersection of the marginal revenue curve and marginal cost curve.
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GREEN LOGIGUIN
[What's This?]
Today, you are likely to spend a great deal of time wandering around the shopping mall looking to buy either a weathervane with a cow on top or a box of multi-colored, plastic paper clips. Be on the lookout for slightly overweight pizza delivery guys.
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This isn't me! What am I?
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John Maynard Keynes was born the same year Karl Marx died.
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"The man who does not read good books has no advantage over the man who cannot read them. " -- Mark Twain
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WPI
Wholesale Price Index
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