Macroeconomics Exam Prep: Master Advanced Fiscal
Policy & Aggregate Supply Practice Questions & Detailed
Explanations
Subject: Advanced Macroeconomics: Fiscal Policy, Debt Sustainability, and
Aggregate Supply Dynamics
Question 1: In a dynamic general equilibrium framework, how does an increase in government
consumption affect the equilibrium real interest rate if the economy is characterized by a high
degree of intertemporal substitutability of consumption?
A) The real interest rate decreases to stimulate private investment.
B) The real interest rate increases to crowd out private consumption and investment.
C) The real interest rate remains unchanged due to Ricardian Equivalence.
D) The real interest rate fluctuates purely based on monetary policy intervention.
Correct Answer: B) The real interest rate increases to crowd out private consumption and
investment.
Explanation: In an intertemporal model, an increase in government spending increases
aggregate demand today. To maintain equilibrium in the loanable funds market, the real interest
rate must rise. This rise discourages current consumption (intertemporal substitution) and
private investment, effectively "crowding out" private sector activity.
Question 2: Which of the following best describes the "Fiscal Multiplier" magnitude in an
economy at the Zero Lower Bound (ZLB)?
A) The multiplier is significantly lower than in normal times due to central bank
accommodation.
B) The multiplier is significantly higher than in normal times because nominal interest rates do
not rise to offset the fiscal stimulus.
C) The multiplier is exactly 1 because of complete crowding out.
D) The multiplier is zero because investment is perfectly interest-inelastic.
Correct Answer: B) The multiplier is significantly higher than in normal times because
nominal interest rates do not rise to offset the fiscal stimulus.
,Explanation: In normal times, a fiscal expansion puts upward pressure on interest rates, which
dampens the stimulus. At the ZLB, the nominal interest rate is fixed at zero, so the expansionary
fiscal policy does not trigger a rise in interest rates, allowing for a much stronger impact on
output.
Question 3: According to the "Sargent-Wallace Unpleasant Monetarist Arithmetic," what is the
long-run consequence of tight monetary policy if fiscal policy remains persistently
expansionary?
A) Long-run inflation decreases as the money supply is restricted.
B) Long-run inflation increases because the debt burden forces the central bank to monetize the
deficit eventually.
C) Real interest rates fall, leading to an investment boom.
D) The exchange rate appreciates, neutralizing inflationary pressure.
Correct Answer: B) Long-run inflation increases because the debt burden forces the central
bank to monetize the deficit eventually.
Explanation: Sargent and Wallace argue that if the government’s fiscal path is unsustainable
and it cannot issue debt indefinitely, the central bank will ultimately be forced to monetize the
debt to prevent default, leading to higher inflation regardless of current tight monetary policy.
Question 4: What is the primary difference between "Structural Primary Balance" and "Actual
Primary Balance" when assessing fiscal sustainability?
A) Structural balance includes interest payments; actual does not.
B) Actual balance adjusts for business cycle fluctuations to reveal the underlying fiscal stance.
C) Structural balance excludes the effects of automatic stabilizers to show the discretionary fiscal
position.
D) Actual balance is a forward-looking measure, while structural is backward-looking.
Correct Answer: C) Structural balance excludes the effects of automatic stabilizers to show
the discretionary fiscal position.
Explanation: The structural primary balance is the actual balance adjusted for the output gap. It
helps policymakers distinguish between a deficit caused by a recession (cyclical) and a deficit
caused by persistent overspending or low tax effort (structural).
Question 5: In an overlapping generations (OLG) model, how does a debt-financed tax cut affect
national saving if Ricardian Equivalence fails?
,A) National saving increases because households expect higher future taxes.
B) National saving decreases because households increase current consumption, perceiving the
tax cut as a net increase in lifetime wealth.
C) National saving remains constant as private saving offsets public dissaving.
D) National saving is unaffected by the method of government finance.
Correct Answer: B) National saving decreases because households increase current
consumption, perceiving the tax cut as a net increase in lifetime wealth.
Explanation: Ricardian Equivalence fails when agents have finite horizons or are liquidity-
constrained. In such cases, a debt-financed tax cut is perceived as increased wealth, leading to
higher current consumption and lower national saving.
Question 6: Which condition must be met for a government's debt-to-GDP ratio to remain
stable?
A) The primary surplus must equal the product of the debt-to-GDP ratio and the difference
between the interest rate and the GDP growth rate.
B) The primary deficit must be zero.
C) The real interest rate must be lower than the inflation rate.
D) Tax revenue must grow faster than government spending in all periods.
Correct Answer: A) The primary surplus must equal the product of the debt-to-GDP ratio
and the difference between the interest rate and the GDP growth rate.
Explanation: This is the debt dynamics equation: $\Delta b = (r - g)b - p$, where $p$ is the
primary surplus. For $\Delta b = 0$, the primary surplus $p$ must satisfy $p = (r - g)b$.
Question 7: How does the "Haavelmo Effect" (Balanced Budget Multiplier) impact GDP?
A) It suggests that a simultaneous increase in taxes and spending has no effect on GDP.
B) It suggests that a simultaneous increase in taxes and spending increases GDP by the exact
amount of the spending increase.
C) It suggests that GDP decreases because taxes have a larger impact than spending.
D) It suggests that GDP increases by more than the spending amount due to tax multipliers.
, Correct Answer: B) It suggests that a simultaneous increase in taxes and spending increases
GDP by the exact amount of the spending increase.
Explanation: The balanced budget multiplier is 1. An increase in $G$ raises GDP by $1/(1-
MPC)$, and an increase in $T$ reduces GDP by $-MPC/(1-MPC)$. The sum is 1.
Question 8: In the context of the New Keynesian Phillips Curve (NKPC), what does a "forward-
looking" inflation term imply?
A) Current inflation is determined solely by current output slack.
B) Inflation expectations have a significant impact on current inflation dynamics.
C) Inflation is entirely determined by past shocks (backward-looking).
D) Monetary policy has no effect on inflation in the short run.
Correct Answer: B) Inflation expectations have a significant impact on current inflation
dynamics.
Explanation: The structural NKPC is $\pi_t = \beta E_t[\pi_{t+1}] + \kappa y_t$. The inclusion
of $E_t[\pi_{t+1}]$ means that credible central bank commitments to future inflation control
can influence current inflation today.
Question 9: What is the "Fiscal Theory of the Price Level" (FTPL)?
A) The price level is determined by the money supply.
B) The price level is determined by the government's intertemporal budget constraint, where debt
must be backed by future primary surpluses.
C) The price level is determined by cost-push supply shocks.
D) The price level is determined by the exchange rate.
Correct Answer: B) The price level is determined by the government's intertemporal budget
constraint, where debt must be backed by future primary surpluses.
Explanation: FTPL posits that if the government does not plan to run primary surpluses to pay
off its debt, the price level must rise to reduce the real value of that debt to match the discounted
value of available surpluses.
Question 10: Which of the following is a classic example of "pro-cyclical" fiscal policy?
A) Increasing unemployment benefits during a recession.
Policy & Aggregate Supply Practice Questions & Detailed
Explanations
Subject: Advanced Macroeconomics: Fiscal Policy, Debt Sustainability, and
Aggregate Supply Dynamics
Question 1: In a dynamic general equilibrium framework, how does an increase in government
consumption affect the equilibrium real interest rate if the economy is characterized by a high
degree of intertemporal substitutability of consumption?
A) The real interest rate decreases to stimulate private investment.
B) The real interest rate increases to crowd out private consumption and investment.
C) The real interest rate remains unchanged due to Ricardian Equivalence.
D) The real interest rate fluctuates purely based on monetary policy intervention.
Correct Answer: B) The real interest rate increases to crowd out private consumption and
investment.
Explanation: In an intertemporal model, an increase in government spending increases
aggregate demand today. To maintain equilibrium in the loanable funds market, the real interest
rate must rise. This rise discourages current consumption (intertemporal substitution) and
private investment, effectively "crowding out" private sector activity.
Question 2: Which of the following best describes the "Fiscal Multiplier" magnitude in an
economy at the Zero Lower Bound (ZLB)?
A) The multiplier is significantly lower than in normal times due to central bank
accommodation.
B) The multiplier is significantly higher than in normal times because nominal interest rates do
not rise to offset the fiscal stimulus.
C) The multiplier is exactly 1 because of complete crowding out.
D) The multiplier is zero because investment is perfectly interest-inelastic.
Correct Answer: B) The multiplier is significantly higher than in normal times because
nominal interest rates do not rise to offset the fiscal stimulus.
,Explanation: In normal times, a fiscal expansion puts upward pressure on interest rates, which
dampens the stimulus. At the ZLB, the nominal interest rate is fixed at zero, so the expansionary
fiscal policy does not trigger a rise in interest rates, allowing for a much stronger impact on
output.
Question 3: According to the "Sargent-Wallace Unpleasant Monetarist Arithmetic," what is the
long-run consequence of tight monetary policy if fiscal policy remains persistently
expansionary?
A) Long-run inflation decreases as the money supply is restricted.
B) Long-run inflation increases because the debt burden forces the central bank to monetize the
deficit eventually.
C) Real interest rates fall, leading to an investment boom.
D) The exchange rate appreciates, neutralizing inflationary pressure.
Correct Answer: B) Long-run inflation increases because the debt burden forces the central
bank to monetize the deficit eventually.
Explanation: Sargent and Wallace argue that if the government’s fiscal path is unsustainable
and it cannot issue debt indefinitely, the central bank will ultimately be forced to monetize the
debt to prevent default, leading to higher inflation regardless of current tight monetary policy.
Question 4: What is the primary difference between "Structural Primary Balance" and "Actual
Primary Balance" when assessing fiscal sustainability?
A) Structural balance includes interest payments; actual does not.
B) Actual balance adjusts for business cycle fluctuations to reveal the underlying fiscal stance.
C) Structural balance excludes the effects of automatic stabilizers to show the discretionary fiscal
position.
D) Actual balance is a forward-looking measure, while structural is backward-looking.
Correct Answer: C) Structural balance excludes the effects of automatic stabilizers to show
the discretionary fiscal position.
Explanation: The structural primary balance is the actual balance adjusted for the output gap. It
helps policymakers distinguish between a deficit caused by a recession (cyclical) and a deficit
caused by persistent overspending or low tax effort (structural).
Question 5: In an overlapping generations (OLG) model, how does a debt-financed tax cut affect
national saving if Ricardian Equivalence fails?
,A) National saving increases because households expect higher future taxes.
B) National saving decreases because households increase current consumption, perceiving the
tax cut as a net increase in lifetime wealth.
C) National saving remains constant as private saving offsets public dissaving.
D) National saving is unaffected by the method of government finance.
Correct Answer: B) National saving decreases because households increase current
consumption, perceiving the tax cut as a net increase in lifetime wealth.
Explanation: Ricardian Equivalence fails when agents have finite horizons or are liquidity-
constrained. In such cases, a debt-financed tax cut is perceived as increased wealth, leading to
higher current consumption and lower national saving.
Question 6: Which condition must be met for a government's debt-to-GDP ratio to remain
stable?
A) The primary surplus must equal the product of the debt-to-GDP ratio and the difference
between the interest rate and the GDP growth rate.
B) The primary deficit must be zero.
C) The real interest rate must be lower than the inflation rate.
D) Tax revenue must grow faster than government spending in all periods.
Correct Answer: A) The primary surplus must equal the product of the debt-to-GDP ratio
and the difference between the interest rate and the GDP growth rate.
Explanation: This is the debt dynamics equation: $\Delta b = (r - g)b - p$, where $p$ is the
primary surplus. For $\Delta b = 0$, the primary surplus $p$ must satisfy $p = (r - g)b$.
Question 7: How does the "Haavelmo Effect" (Balanced Budget Multiplier) impact GDP?
A) It suggests that a simultaneous increase in taxes and spending has no effect on GDP.
B) It suggests that a simultaneous increase in taxes and spending increases GDP by the exact
amount of the spending increase.
C) It suggests that GDP decreases because taxes have a larger impact than spending.
D) It suggests that GDP increases by more than the spending amount due to tax multipliers.
, Correct Answer: B) It suggests that a simultaneous increase in taxes and spending increases
GDP by the exact amount of the spending increase.
Explanation: The balanced budget multiplier is 1. An increase in $G$ raises GDP by $1/(1-
MPC)$, and an increase in $T$ reduces GDP by $-MPC/(1-MPC)$. The sum is 1.
Question 8: In the context of the New Keynesian Phillips Curve (NKPC), what does a "forward-
looking" inflation term imply?
A) Current inflation is determined solely by current output slack.
B) Inflation expectations have a significant impact on current inflation dynamics.
C) Inflation is entirely determined by past shocks (backward-looking).
D) Monetary policy has no effect on inflation in the short run.
Correct Answer: B) Inflation expectations have a significant impact on current inflation
dynamics.
Explanation: The structural NKPC is $\pi_t = \beta E_t[\pi_{t+1}] + \kappa y_t$. The inclusion
of $E_t[\pi_{t+1}]$ means that credible central bank commitments to future inflation control
can influence current inflation today.
Question 9: What is the "Fiscal Theory of the Price Level" (FTPL)?
A) The price level is determined by the money supply.
B) The price level is determined by the government's intertemporal budget constraint, where debt
must be backed by future primary surpluses.
C) The price level is determined by cost-push supply shocks.
D) The price level is determined by the exchange rate.
Correct Answer: B) The price level is determined by the government's intertemporal budget
constraint, where debt must be backed by future primary surpluses.
Explanation: FTPL posits that if the government does not plan to run primary surpluses to pay
off its debt, the price level must rise to reduce the real value of that debt to match the discounted
value of available surpluses.
Question 10: Which of the following is a classic example of "pro-cyclical" fiscal policy?
A) Increasing unemployment benefits during a recession.
