Explain the role of fiscal policy and monetary policy in achieving the macroeconomic objectives, including the structure of the Commonwealth Budget, the cash rate as the RBA instrument, and the transmission mechanism

What this dot point is asking

QCAA wants you to explain how fiscal and monetary policy work, identify the instruments, trace the transmission mechanisms, and apply the framework to recent Australian conditions. Expect a 6 to 10 mark extended response in the EA.

The answer

Fiscal policy

Fiscal policy is the use of the Commonwealth Budget revenue and expenditure decisions to influence the macroeconomy.

Budget structure (2024-25, indicative):

Revenue (around 25 percent of GDP):

• Individual income tax: 47 percent of total revenue.
• Company tax: 18 percent.
• GST: 15 percent.
• Excise (fuel, tobacco, alcohol): 5 percent.
• Other: 15 percent.

Expenditure (around 24.5 percent of GDP):

• Social security and welfare: 35 percent.
• Health: 15 percent.
• Education: 7 percent.
• Defence: 5 percent.
• Other (transfers to states, infrastructure, debt servicing): 38 percent.

Budget outcome. The underlying cash balance is the headline measure. Surplus = revenue exceeds expenditure; deficit = expenditure exceeds revenue.

Automatic stabilisers and discretionary policy

Automatic stabilisers dampen the cycle without active decisions:

• During expansion: income tax revenue rises faster than GDP; transfer payments (JobSeeker) fall.
• During recession: tax revenue falls; transfer payments rise.

Estimated contribution: about 30 percent counter-cyclical impulse to any GDP shock (Treasury).

Discretionary policy requires legislation:

• 2020 COVID-19 stimulus. $250 billion (JobKeeper$90b, cash flow boost, JobSeeker supplement).
• Stage 3 tax cuts (2024). Recalibrated, around $20 billion per year.
• Energy bill rebates (2024-25). $300 per household.

Stance of fiscal policy

• Expansionary: rising structural deficit. Stimulates AD. Used in recessions.
• Contractionary: rising structural surplus. Dampens AD. Used to address inflation.
• Neutral: unchanged structural balance.

Recent Australian Budget outcomes

Net federal debt around 22 percent of GDP in 2024-25, moderate by international standards (US ~95%, UK ~90%, Japan ~159%).

Monetary policy

Monetary policy is the manipulation of the cost and availability of money and credit by the RBA.

Mandate. Reserve Bank Act 1959: currency stability, full employment, prosperity and welfare. Operationalised since 1993 as 2-3 percent inflation target on average over the medium term.

The Monetary Policy Board (from 2024) makes decisions, meeting eight times per year.

The cash rate

The cash rate is the overnight inter-bank lending rate. The RBA sets a target and uses open market operations to make banks transact at the target.

To lower the cash rate: RBA buys government bonds, paying with new reserves. Reserves expand; cash rate falls.

To raise the cash rate: RBA sells government bonds. Reserves contract; cash rate rises.

Transmission mechanism

Four channels:

1. Interest rate channel

Cash rate flows through to retail rates. Higher rates raise borrowing costs and reduce consumption and investment.

2. Asset price channel

Higher rates lower housing and equity prices. Lower wealth reduces consumption.

3. Exchange rate channel

Higher rates attract foreign capital, supporting the AUD. Reduces imported inflation; reduces net exports.

4. Expectations channel

RBA decisions and forward guidance influence inflation expectations and wage-setting.

Transmission has a 12 to 18 month lag from decision to peak impact.

2022-24 monetary policy cycle

Outcomes:

• Trimmed mean CPI: 6.9% (Q4 2022) → 3.2% (Q4 2024).
• Unemployment: 3.5% → 4.1%.
• Real GDP growth: 3.8% → 1.3%.

Strengths and weaknesses

Fiscal policy strengths:

• Direct AD effect.
• Targeted.
• Distributional impact via tax and transfers.
• Public good provision.

Fiscal policy weaknesses:

• Time lags (legislation).
• Political constraints.
• Sovereign debt limits.

Monetary policy strengths:

• Independent (insulated from political cycle).
• Flexible (8 meetings per year).
• Strong impact on housing-sensitive consumption.

Monetary policy weaknesses:

• 12 to 18 month transmission lag.
• Blunt instrument (affects all borrowers).
• Distributional consequences (mortgage holders bear cost).
• Zero lower bound.

The policy mix

Coordinated fiscal and monetary policy is more effective than either alone:

• 2008 GFC response. Combined rapid RBA rate cuts (7.25% to 3.0%) with Rudd government fiscal stimulus.
• 2020 COVID-19 response. Combined emergency monetary easing with massive fiscal stimulus.
• 2022-24 disinflation. Combined monetary tightening with fiscal consolidation.

The 2023 Statement on the Conduct of Monetary Policy formalised the coordination framework. Treasury and the RBA increasingly publish coordinated forecasts and policy assessments.

Policy responses by macroeconomic objective

Strong and sustainable growth

Counter-cyclical fiscal and monetary policy; supply-side reform for long-run growth.

Full employment

Counter-cyclical demand management; labour market reform to reduce the NAIRU.

Low and stable inflation

RBA monetary policy is the primary tool; fiscal policy can reinforce by tightening structural balance.

Equity

Progressive tax and transfers; minimum wages and award protections.

Environmental sustainability

Carbon pricing (Safeguard Mechanism); subsidies for renewables (Capacity Investment Scheme); regulation.

Common QCE traps

Confusing the Budget balance with public debt

Balance is a flow; debt is the cumulative stock.

Treating automatic stabilisers as the same as discretionary policy

They work without active decisions.

Confusing the cash rate with retail mortgage rates

The cash rate is the wholesale rate; retail rates have a bank margin.

Forgetting transmission lags

Markers reward responses acknowledging the 12 to 18 month monetary policy lag.

Treating monetary and fiscal policy as substitutes

They are complements; coordination is more effective.