An increase in investment by 5000cr leads to increase in national inco...
Calculation of MPS
Given Data:
- Increase in investment = 5000 crore
- Increase in national income = 4 times the increase in investment
Calculation:
To calculate MPS, we need to use the formula:
MPS = ΔS / ΔY
Where, ΔS = Change in savings and ΔY = Change in income
Given that increase in national income is four times the increase in investment, we can calculate the change in income as follows:
ΔY = 4 x 5000 crore = 20,000 crore
Let us assume that the entire increase in income is saved. In this case, ΔS would be equal to ΔY
ΔS = 20,000 crore
Therefore, MPS = ΔS / ΔY = 20,000 crore / 20,000 crore = 1
Explanation:
The marginal propensity to save (MPS) is the fraction of additional income that is saved rather than spent. In this case, we assumed that the entire increase in income is saved, which means that the MPS is equal to 1. This implies that for every additional rupee earned, the entire amount is saved and none of it is spent.
This is an unrealistic assumption as people tend to spend some portion of their additional income. In reality, the MPS is usually less than 1, which means that people tend to spend some portion of their additional income.