Question : In a two sector economy, the saving function is given as S=-10+0.4Y and investment function is expressed as I=-4+0.1Y. Calculate equilibrium level of income?
Option 1: 20
Option 2: 30
Option 3: 15
Option 4: 10
Correct Answer: 20
Solution : Equilibrium,
S=I
-10+0.4Y=-4+0.1Y
0.3Y=6
Y= 20
Hence, Option A is correct.