1.

An economy is in equilibrium. Calculate the Marginal Propensity to Save from the following:National income = 1,000 Autonomous consumption=100 Investment=120

Answer»

Solution :GIVEN :
National Income (Y) = 1000
Autonomous Consumption (a) = 100
Investment (I) = 120
Y=C+I
C=a+bY
Y=100+`bxx1000+120`
1000-120=100+B
880=100+1000b
880-100=1000b
780=1000b
`b=(780)/(1000)=0.78`
`THEREFORE MPC=0.78`
MPS=1-MPC
=1-0.78
=0.22


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