Economic Definition of saving line. Defined.
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Term saving line Definition: A graphical depiction of the relation between household saving and household disposable income. The slope of this line is positive, greater than zero, less than one, and goes by the name marginal propensity to save. The vertical intercept of the saving line is autonomous saving. The saving and investment, or leakage and injection, analysis used in Keynesian economics begins with the saving line. Because consumption is the difference between disposable income and saving, the consumption line is a complementary relation to the saving line.