Question

Private saving in an economy is given by Sv = 100 + 50 r, while gross...

Private saving in an economy is given by Sv = 100 + 50 r, while gross investment is given by the

equation I = 1200 – 50r. The government has a budget deficit of 200 and the country borrows

100 internationally. The inflation rate is 20.... Just use 20, not 0.20 or 20%. What is the value

for the equilibrium real rate of interest, r? What is the value for gross investment?

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Answer #1

Sv=100+50r

I=1200-50r

I=sv

1200-50r=100+50r

1200-100=50r+50r

1100=100r

r=1100/100

=11

Gross investment I=1200-50r

I=1200-50*11

1200-550

=650

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