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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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U-SHAPED COST CURVES The family of short-run cost curves consisting of average total cost, average variable cost, and marginal cost, all of which have U-shapes. Each is U-shaped because it begins with relatively high but falling cost for small quantities of output, reaches a minimum value, then has rising cost at large quantities of output. Although the average fixed cost curve is not U-shaped, it is occasionally included with the other three just for sake of completeness.
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BUSINESS As UsualIn the same mini-mall with Dr. Nova Cain's dental offices and Smilin' Ted's All Comers Insurance Agency, resides Manny Mustard's House of Sandwiches -- one of those small, out-of-the-way, off-the-wall sorts of restaurants that has great food, excellent service, and plenty of atmosphere. Manny, the proprietor, is a good friend of mine who's struggling to turn his dream of restauranteering into reality. His restauranteering dream doesn't stop with one small, out-of-the-way, off-the-way restaurant with great food, excellent service, and atmosphere. No, Manny is shooting for a nation-wide chain of Manny Mustard's House of Sandwiches. He wants to go from being an overworked, underappreciated member of the third estate to a member of the second estate who overworks and underappreciates others. To help out my good friend Manny, let's take a long, hard look at the differences between small business and the larger, Fortune 500 kind.
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BROWN PRAGMATOX
[What's This?]
Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius looking to buy either a rechargeable battery for your camera or a coffee cup commemorating the first day of spring. Be on the lookout for defective microphones.
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This isn't me! What am I?
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A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
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"There's a very positive relationship between people's ability to accomplish any task and the time they're willing to spend on it." -- Dr. Joyce Brothers
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ACRS
Accelerated Cost Recovery System
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