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Economic Definition of consumption line. Defined.

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Term consumption line Definition: A graphical depiction of the relation between household consumption expenditures and household disposable income that forms one of the key building blocks for Keynesian economics. The slope of this line is positive, greater than zero, less than one, and goes by the name marginal propensity to consume. The vertical intercept of the consumption line is autonomous consumption. The aggregate expenditures line used in the Keynesian cross is obtained by adding investment, government purchases, and net exports to the consumption line. Because saving is the difference between disposable income and consumption, the saving line is a complementary relation to the consumption line.

 

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