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Economics
Macro Economics: Determination of Income and Employment
When $C = 70+0.5Y$ and $I = 40$, what is the equilibrium income?
250
110
220
150
The correct answer is Option (3) → 220
We are given the following:
Consumption function: C=70+0.5Y
Investment (I): 40
Equilibrium condition: Y=C+I
Plug values into the equilibrium condition:
Y = (70+0.5Y)+40
Y=110+0.5Y
0.5Y=110
Y = 220