Examine the role of monetary policy in Australia including the objectives, the cash rate as the policy instrument, the transmission mechanism, and the impact of monetary policy on the economy

What this dot point is asking

NESA wants you to define monetary policy, explain the RBA's objectives and inflation target, describe how the cash rate is set, trace the four channels of the transmission mechanism, and analyse recent decisions. Expect a high-frequency 6 to 8 mark short answer and Section IV essay options on monetary policy.

The answer

Monetary policy defined

Monetary policy is the manipulation of the cost and availability of money and credit by the Reserve Bank of Australia to achieve macroeconomic objectives.

RBA objectives

The Reserve Bank Act 1959 sets three statutory objectives:

1. Stability of the currency of Australia.
2. Maintenance of full employment in Australia.
3. Economic prosperity and welfare of the people of Australia.

These have been operationalised since 1993 as the inflation target: headline CPI of 2 to 3 percent on average over the medium term, with full employment as a complementary goal. The Statement on the Conduct of Monetary Policy (refreshed in 2023) formalises the dual mandate.

The RBA Board comprises the Governor, the Deputy Governor, the Secretary to the Treasury, and six external members. From 2024, monetary policy decisions are made by a separate Monetary Policy Board following the Independent Review of the RBA (Bullock review, 2023). The Board meets eight times per year.

The cash rate as the policy instrument

The cash rate is the interest rate banks charge each other for overnight loans of reserves. The RBA sets a target for the cash rate and uses open market operations to make banks transact at that target.

Open market operations

• To lower the cash rate: the RBA buys government securities from banks, paying with new reserves. Reserves expand, the cash rate falls.
• To raise the cash rate: the RBA sells government securities to banks, draining reserves. Reserves contract, the cash rate rises.

Since 2008, the RBA has also used standing facilities: the deposit rate (the rate banks earn on Exchange Settlement Account balances) and the lending rate (the rate banks pay to borrow reserves). These act as a corridor around the cash rate target.

During COVID-19 (March 2020 to early 2022), the RBA used unconventional monetary policy:

• Cash rate at 0.10 percent (effective lower bound).
• A three-year yield target on Australian government bonds.
• A $188 billion Term Funding Facility for banks.
• $281 billion of bond purchases (quantitative easing).

The yield target and TFF were wound up in early 2022; bond holdings are running off as bonds mature.

Transmission mechanism

Monetary policy affects the real economy through four main channels:

1. Interest rate channel. Changes in the cash rate pass through to retail interest rates (mortgages, business loans, deposit rates) within months. Higher rates:

• Raise the cost of borrowing, reducing consumption (especially of durables) and investment.
• Raise debt servicing costs for existing mortgage holders, reducing disposable income.
• Raise deposit returns, encouraging saving.

Pass-through is now around 90 percent within 6 months (RBA estimates), thanks to a high share of variable-rate mortgages.

2. Asset price channel. Higher rates lower asset prices:

• Housing prices fall (or rise less) as mortgage capacity tightens.
• Equity prices fall as future earnings are discounted at higher rates.
• Lower asset prices reduce household wealth, reducing consumption through the wealth effect.

Sydney median house prices fell around 12 percent peak to trough during the 2022-23 tightening cycle before recovering.

3. Exchange rate channel. Higher cash rate attracts foreign capital, supporting the AUD:

• Higher AUD reduces import prices, lowering imported inflation.
• Higher AUD reduces export competitiveness, dampening AD.

The channel has been muted in 2022-24 because US Fed rate rises have outpaced RBA rises, leaving the AUD weaker than usual.

4. Expectations channel. RBA forward guidance and decisions shape:

• Inflation expectations. Anchored expectations reduce wage-price spirals.
• Business confidence. Predictable policy supports investment planning.
• Household sentiment. Signal effects on spending and saving.

The RBA publishes a quarterly Statement on Monetary Policy and the Governor speaks regularly to manage expectations.

Monetary policy stance

• Expansionary (easy): cash rate below the neutral rate. Stimulates AD. Used in recessions or to bring inflation up to target.
• Contractionary (tight): cash rate above the neutral rate. Dampens AD. Used to bring inflation back to target.
• Neutral: cash rate consistent with stable inflation at target and full employment.

The RBA estimates the neutral cash rate at around 3 to 3.5 percent in 2025 (RBA Statement on Monetary Policy, indicative). The current 4.35 percent rate is therefore contractionary.

Recent decisions

The 2022-24 tightening cycle:

Real outcomes:

• Headline CPI fell from 7.8 percent (Q4 2022) to around 3.0 percent by early 2025.
• Trimmed mean fell from 6.9 percent to around 3.2 percent.
• Unemployment rose from 3.5 percent to 4.1 percent.
• Real GDP growth slowed from 2.8 percent (2022) to 1.3 percent (2024).

The RBA's "narrow path" of bringing inflation back to target without triggering recession has been largely achieved, though the disinflation has been slower than initially expected.

Constraints on monetary policy

1. Time lags

Decision-to-effect lag of 12 to 18 months. The RBA must forecast where inflation will be when the policy takes full effect.

2. Zero lower bound

Conventional rates cannot fall much below zero (negative rates damage bank profitability).

3. Unequal incidence

Higher rates disproportionately hurt mortgage holders (especially recent buyers); savers and equity holders may benefit. Distributional consequences.

4. Exchange rate spillovers

Other central banks' decisions affect the AUD and Australian financial conditions.

5. One instrument, many objectives

Cannot simultaneously address inflation, unemployment and financial stability if they conflict.

Monetary policy vs fiscal policy

Both tools work on AD, but with different strengths:

Coordination of monetary and fiscal policy is essential. The 2023-24 federal Budget tightening helped the RBA's inflation effort.

Common HSC traps

Confusing the cash rate with mortgage rates

The cash rate is the wholesale rate; retail rates are set by banks with a margin.

Forgetting the transmission lag

Markers reward responses that explicitly acknowledge the 12 to 18 month lag.

Treating monetary policy as the only tool

Fiscal and microeconomic policy also matter; an integrated policy mix is more effective than monetary policy alone.