24) (a) When the government expenditure increases or government adopts fiscal expansionary policy, the IS curve shifts to rightward.
25) (a) Since, the government has used balanced budget policy, the IS curve will not shift. In this case, the balanced budget multiplier will be equal to 1.
26) (b) Whenever, government uses contractionary fiscal policy (reduction in government spending or rise in taxes) the IS curve shifts to left.
27) (d) As the economy moves rightward along a given IS curve, interest rate rises and with a rise in interest rate, the demand for investment falls because there is an inverse relationship between interest rate and investment demand. So, the overall demand for goods falls.
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