49. Disposable Income (YD) Consumption (C) $ 200 400 600 800 1,000 150 300 450 600 750 900 The algebraic form of this consumption function is: C = $150 + 0.75(Yd). C = $200 + 0.8(Yd). C = $200 + 0.75(Yd). C = $150 + 0.8(Yd).
The consumption when income level is zero is said to be autonomous
consumption.
The consumption when income level is zero is $150.
So, the autonomous consumption is $150.
The table shows that each increase of $200 in disposable income leads to an increase in consumption by $150.
So,
MPC = Change in consumption/Change in disposable income = $150/$200 = 0.75
Consumption function is stated as follows -
C = Autonomous consumption + [MPC * Disposable Income]
C = 150 + [0.75 * Yd]
C = 150 + 0.75Yd
Thus,
The algebraic form of this consumption function is C = $150 + 0.75(Yd).
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