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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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SIGNALLING When confronted by asymmetric information, the use of small bits of information, or indicators, that suggest more comprehensive information. Signalling is used by those with more information to reduce the cost of informing those with less information. It is commonly used in markets with adverse selection. Methods of signalling include advertising, brand names, and warranties. A related method is screening.
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WHITE GULLIBON
[What's This?]
Today, you are likely to spend a great deal of time lost in your local discount super center wanting to buy either a flower arrangement for your aunt or a birthday greeting card for your uncle. Be on the lookout for cardboard boxes.
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This isn't me! What am I?
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Al Capone's business card said he was a used furniture dealer.
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"Success is liking yourself, liking what you do, and liking how you do it." -- Maya Angelou, Poet and Author
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IV
Instrumental Variables
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