The consumption function shows the relationship between consumption spending and . The slope of the consumption function is the . Changes in consumption can be predicted by multiplying the change in by the If the MPC

Consumption Function : Relationship between Consumption Spending & Income

Consumption Function Slope = Marginal Propensity Curve  (MPC)

Change in Consumption = Change in Income X MPC

Explanation:

Consumption Function is the curve representing relationship between Consumption spending and Income.

C = a + bY ; where :- C = Consumption , Y = Income ,  a = Autonomous Consumption i.e consumption at 0 level of income , b = MPC i.e additional consumption consumed from additional income = ΔC / ΔY

b = MPC i.e change in C due to additional change in Y = ΔC / ΔY is the slope of Consumption Function

MPC = ΔC / ΔY .

So, change in consumption i.e ΔC = MPC X ΔY