Find an equation relating desired national saving

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Reference no: EM132456345

Desired consumption and investment are:

Cd = 4000-4000r + .20Y

Id= 2400-4000r

As usual, Y is output and r is real interest rate. Government purchases, G, are 2000.

(a) Find an equation relating desired national saving, Sd, to r and Y.

(b) What value of the real interest rate clears the goods market when Y= 10,000? Use both forms of the goods market equilibrium condition. What value of the real interest rate clears the goods market when Y= 10,200? Graph the IS curve.

(c) Government purchases rise to 2400. How does this increase change the equation for national saving in Part (a) ? What value of the real interest rate clears the goods market when Y= 10,000? Use both forms of the goods market equilibrium condition. How is the IS curve affected by the increase in G?

Reference no: EM132456345

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