
How the value of the multiplier change with the marginal propensity to consume.
Concept Introduction:
The formula to calculate change in GDP is:
Here,
is autonomous spending.
- MPC is marginal propensity to consume.
Marginal Propensity to Consume (MPC): It is defined as the change which occurs in total consumption level due to change in disposable income.
The formula to calculate MPC is:
Here,
is change in disposable income.
is change in consumption level.
- MPC is marginal propensity to consume.
Multiplier: It is defined as the ratio of total change in the gross domestic product due to change in the autonomous spending.
The formula to calculate multiplier is:
Here,
- MPC is marginal propensity to consume.
Consumption Level ( C ): It is one of the largest components of GDP .The individual consumption depends on the disposable income.
Consumption Function: It shows how the change in disposable income of an individual changes the consumption level.
The formula to calculate consumption function is:
Here,
- C is consumption level.
is autonomous consumption.
is disposable income
- MPC is marginal propensity to consume.
Autonomous Consumption: It is defined as the consumption level when the income of an individual is zero.

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