The two approaches to determination of the equilibrium level of income are:
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Aggregate demand-Aggregate supply approach
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Saving-Investment approach
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Demand-Supply approach
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Both A & B
Reveal answer
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D
Correct answer
Explanation
Two approaches are:
1) Aggregate demand-Aggregate supply approach-
An economy is in equilibrium when aggregate demand for goods and services is equal to aggregate supply during a period of time.
So, equilibrium is achieved when:
AD = AS … (1)
We know, AD is the sum total of Consumption (C) and Investment (I):
AD = C + I … (2)
Also, AS is the sum total of consumption (C) and saving (S):
AS = C + S … (3)
Substituting (2) and (3) in (1), we get:
C + S = C + I.....(4)
2)Saving-Investment approach
According to this approach, the equilibrium level of income is determined at a level, when planned saving (S) is equal to planned investment (I).
from equation( 4)
S = I