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ABSTRACTION: Simplifying the complexities of the real world by ignoring (hopefully) unimportant details while doing economic analysis. Abstraction is often criticized because it's, well, it's JUST NOT REALISTIC. However, when done correctly (ignoring things that JUST DON'T MATTER), then the pursuit of knowledge is greatly enhanced by abstraction. For example, when travelling cross country along a high-speed interstate highway, a paper road map is a handy tool. It shows towns and cities along the way, the major intersections, rest stop locations, and other important points of interest. However, it ignores unimportant details. It doesn't realistically show the location of every tree, bush, or blade of grass. Why bother? This information won't enhance your road trip.
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FOUR-SECTOR AGGREGATE EXPENDITURES LINE A graphical depiction of the relation between aggregate expenditures by the four macroeconomic sectors (household, business, government, and foreign) and the level of aggregate income or production. The four-sector aggregate expenditures line combines consumption expenditures, investment expenditures, government purchases, and net exports. The slope of this aggregate expenditures line is based on the marginal propensity to consume, adjusted for marginal propensities of the other expenditures that are assumed to be induced when constructing the line. This is one of three aggregate expenditures lines based on the number of sectors included. The others are the two-sector aggregate expenditures line and the three-sector aggregate expenditures line.
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"I can feel guilty about the past, apprehensive about the future, but only in the present can I act." -- Abraham Maslow, Psychologist
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Taming Our Beastly FEDERAL DEFICITIt's almost impossible to take a leisurely stroll around the economy without crashing headlong into the federal deficit. It doesn't take a microscope to see it bulging from the windows and doors of the Sylvester J. Peabody Federal Office Building as we pass by. It's a monstrous beast that seems to be growing by the minute. But is the federal deficit really as ghoulish and gruesome as drawn by political cartoonists? Should we make a detour of our pedestrian trek to avoid the beast? Considering it's size, is avoidance even possible. To answer these question, let's consider the pluses and minuses of our federal deficit.
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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 wanting to buy either a pair of designer sunglasses or looseleaf notebook paper. Be on the lookout for bottles of barbeque sauce that act TOO innocent.
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This isn't me! What am I?
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Approximately three-fourths of the U.S. paper currency in circular contains traces of cocaine.
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Income, Nominal Gross National Product
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