Answer:
a-1. Amount of rise in government expenditure required = $6.25 billion
a-2. Tax multiplier = -3
b. The combination is as follows:
Increase in spending = $25 billion
increase in taxes = $25 billion
Explanation:
a-1. By how much would government spending have to rise to shift the aggregate demand curve rightward by $25 billion? $ billion.
Spending multiplier = 1 / (1 - MPC) = 1 / (1 - 0.75) = 4
Amount of rise in government expenditure required = Change in aggregate demand / Spending multiplier = $25 / 4 = $6.25 billion
a-2. How large a tax cut would be needed to achieve the same increase in aggregate demand? $ billion.
Tax multiplier = - MPC / (1 - MPC) = - 0.75 / (1 - 0.75) = -3
Amount of tax cut required = Change in aggregate demand / Tax multiplier = $25 / (-3) = $8.33 billion
b. Determine one possible combination of government spending increases and tax increases that would accomplish the same goal without changing the amount of outstanding debt (because it maintains a balanced budget, G = T).
The amount is the amount of the balanced budget, which has a multiplier of one. This indicates that spending and taxes need be increased by $25 billion each to boost GDP by $125 billion. Therefore, the combination is as follows:
Increase in spending = $25 billion
increase in taxes = $25 billion