In the open-economy macroeconomic model, if investment demand increases, then
a. the supply of dollars in the market for foreign-currency exchange shifts left.
b. the supply of dollars in the market for foreign-currency exchange shifts right.
c. the demand for dollars in the market for foreign-currency exchange shifts left.
d. the demand for dollars in the market for foreign-currency exchange shifts right.
Initially, the economy is in long-run equilibrium. The aggregate demand curve then
shifts $80 billion to the left. The government wants to change spending to offset this
decrease in demand. The MPC is 0.75. Suppose the effect on aggregate demand of a tax
change is 3/4 as strong as the effect of a change in government expenditure. There is no
crowding out and no accelerator effect. What should the government do if it wants to
offset the decrease in real GDP?
a. Raise both taxes and expenditures by $80 billion dollars.
b. Raise both taxes and expenditures by $10 billion dollars.
c. Reduce both taxes and expenditures by $80 billion dollars.
d. Reduce both taxes and expenditures by $10 billion dollars.
The level of real GDP person