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Slope of Consumption curve is denoted by :

Solution

Correct Option: 3

The consumption function is C = C-bar + bY, where b is the slope. The slope measures the change in consumption per unit change in income, which is ΔCΔY\frac{\Delta C}{\Delta Y} = MPC (Marginal Propensity to Consume). APC is C/Y which is the ratio, not the slope. Hence the slope of the consumption curve is MPC.

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