A graphical depiction of the relation between aggregate expenditures by the three domestic macroeconomic sectors (household, business, and government) and the level of aggregate income or production. The three-sector aggregate expenditures line combines consumption expenditures, investment expenditures, and government purchases. 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 four-sector aggregate expenditures line.

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It'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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Today, you are likely to spend a great deal of time at a going out of business sale looking to buy either a small palm tree that will fit on your coffee table or several magazines on fashion design. Be on the lookout for deranged pelicans.
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