[HSC] Economist 15th August - 1st September

1. High Probability of a RBA Rate Hike

On 29 September 2026, the RBA will announce whether it will increase, decrease, or maintain the cash rate. Markets are currently pricing in roughly a 60-70% chance of a rate hike, following stronger inflation and economic growth data. 

Although headline inflation has recently eased, underlying inflation remains persistent. This is creating concern that demand in the economy is still too strong for inflation to return sustainably to the RBA’s 2-3% target range. 

Several supply side pressures are also contributing to inflation. Oil prices remain elevated due to ongoing conflict in the Middle East, increasing fuel, transport, and freight costs across the economy. Australia’s weak productivity growth is another concern. When productivity grows slowly, firms produce less output for each hour worked, which can increase unit production costs and make it harder for aggregate supply to keep pace with rising aggregate demand. 

Relevance to the HSC

• Higher interest rates would affect almost every sector of the Australian economy. Higher borrowing costs encourage saving and discourage household consumption and business investment, slowing economic growth.
• Slower aggregate demand also increases cyclical unemployment as firms experience weaker sales and reduce their demand for labour.
• This is particularly useful evidence for Topic 4 monetary policy essays, but it can also be applied to Topic 2 when discussing exchange rates and Topic 3 when analysing the relationship between economic growth, inflation, and unemployment. 

2. GDP Beats Forecasts

Australia’s economy grew by 0.4% in the June quarter, slightly above the expected 0.3% increase. This lifted annual GDP growth to ~2.1%. 

One of the major contributors was household consumption, which increased by 0.4% in the June quarter.

Motor vehicle purchases were particularly strong, rising by approximately 10.3%. This accounted for a significant share of the increase in household consumption. 
Part of this increase may reflect Australians continuing to shift towards electric vehicles, particularly as households become increasingly conscious of ongoing fuel and vehicle operating costs. 

Investment provided a mixed picture. 

Dwelling investment increased by ~1.6%, reflecting continued residential construction activity. 

However, business investment fell by ~0.5% during the same quarter. This suggests that despite strong investment activity earlier in the year, businesses remain cautious about committing to new capital expenditure. \

Relevance to the HSC

• The transition towards electric vehicles can be linked to positive externalities. Compared with petrol vehicles, EV adoption can reduce emissions and other environmental costs imposed on third parties.
• The government has encouraged EV adoption through measures such as the fringe benefit tax exemption, reducing the effective cost of some EV purchases. 
• Stronger economic growth generally helps reduce unemployment by increasing the demand for labour.
• However, stronger household consumption can also increase aggregate demand and contribute to inflationary pressure. This creates a potential trade-off for the RBA: economic growth remains relatively healthy, but stronger demand may make inflation harder to control.
• These statistics are useful for economic growth essays and Topic 3 short answer questions.

3. Inflation Easing But Still Above Target

On the positive side, headline inflation has been falling, from 3.8% to 3.5%. 

This suggests inflationary pressures have begun to moderate. Higher interest rates over the past year have reduced household borrowing and spending, contributing to weaker aggregate demand and the cooling off of the housing market. 

This is also consistent with the idea that monetary policy operates with a time lag (6-18 months). Changes in cash rate do not affect inflation immediately as households and businesses take time to adjust their borrowing, spending, and investment habits. Policy changes such as the new capital gains tax put in place after the 2026/27 Budget have also made its impact. 

However, inflation remains above the RBA target range. 

Housing costs are one contributor. Although house prices have plateaued, this does not mean prices are falling. Prices continue to rise 5% each year and Australians continue to experience strong pressure from rents and residential construction costs, partly because housing supply has struggled to keep pace with population growth and demand. 

Relevance to the HSC

• This is useful evidence when evaluating the effectiveness of monetary policy
• Falling inflation can be used to argue that contractionary monetary policy is reducing aggregate demand
• However, the persistent underlying inflation highlights the limitation of monetary policy: interest rates are much more effective at reducing demand side inflation than addressing supply side pressures such as housing shortages, energy prices, or weak productivity

4. Australian Dollar Strengthens

The Australian dollar has strengthened significantly, with the exchange rate recently reaching around US$0.72 per A$1, compared with levels closer to US$0.68 earlier in the year.

One important factor affecting the Australian dollar is expectations around relative interest rates.

If investors expect Australian interest rates to remain relatively high or rise further, Australian financial assets can become more attractive because they may offer higher returns. This can increase demand for Australian dollars and place upward pressure on the exchange rate.

However, the global interest rate environment is changing quickly. Recent strong US employment data has increased expectations that the US Federal Reserve may also raise interest rates, meaning the interest rate differential between Australia and the US may not widen as much as previously expected.

Interest rates are also not the only factor affecting the Australian dollar. Commodity prices, global investor sentiment, expectations about Chinese economic growth, and movements in the US dollar can all significantly influence the exchange rate. 

Relevance to the HSC

• An appreciation of the Australian dollar can reduce Australia’s international competitiveness. Australian exports become more expensive for overseas consumers, while imported goods become cheaper for Australians. This can reduce net exports and place downward pressure on aggregate demand and economic growth.
• However, an appreciation can also help reduce inflation. Because imported goods become cheaper in Australian dollar terms, an appreciation reduces imported inflation. This is important for Australia because many globally traded inputs, including oil and fuel, are priced internationally
• This is an excellent contemporary example for Topic 2 exchange rate questions, as well as Topic 3 and Topic 4 essays examining inflation, economic growth, and monetary policy.