Australia -vs- rest of the world on Inflation & Interest rates

IMAP Ashley Owen

On 25 October 2023 the latest Australian inflation figures were released for September 23 quarter, with mixed news. Inflation up and  cash rate still at 4.1%. What does all of this mean?

The Sept 23 quarterly inflation rate rose from 0.8% to 1.2%, but the annual rate (rolling 12 months) fell from 6.1% to 5.4%.

Meanwhile the cash rate has been sitting at 4.1% since June 23, after 12 rate hikes.

What does all of this mean?

Is the RBA doing enough?

Are more rate hikes required to control inflation?

How does Australia rate against other countries?

Are we ahead of the game on fighting inflation, or behind?

Here is the full story in seven charts:

By  Ashley Owen, CFA

Ashley Owen, CFA  Founder & Principal of Owen Analytics

1. Annual inflation rates – Australia in back half of the pack

Australia’s annual rate is around the middle of the global pack. With a few notable exceptions, inflation is running well above target in the global inflation spike:

Global inflation rates spike October 2023

2. Inflation ‘running rates’ – Australia in middle of the pack

Annual inflation numbers can be misleading because they relate current (or recent) prices to prices a year ago, and much has changed over the past year.

A much better measure is the current ‘running rate’ of inflation. Most countries report inflation monthly, and for these I annualise the last three months inflation rate to get the current ‘running rate’.

Only two countries report only quarterly (Australia and "Noo Zillund"), so I annualise the past two quarters to get the ‘running rate’:

Australia inflation rates  October 2023

3. Inflation trend – Australia doing well in slowing inflation

The current inflation trend is shown in this Chart 3, (which is the difference between chart 2 and 1).

The current Australia inflation trend is shown here in chart 3

The good news is that Australia (plus Brazil, France, Italy, and UK) are slowing inflation – with the current running rate below the annual rate (negative change on the chart).

Below the line is good (declining inflation). Above the line is bad (rising inflation).

Several countries inflation is going the wrong way - back on the rise again (notably in the US, India, Netherlands and South Korea).

Inflation in China is finally rising again after price deflation in the first half of 2023.

4. Cash rates – Australia still lower than most countries

How are central banks going with cash rate hikes to kill off inflation?

Despite a dozen rate hikes here, cash rates in Australia are still lower than in most other countries – in particular our main ‘peers’ – Canada, NZ, US and UK:

Graph showing cash rates in Australia still lower than most other countries – in particular Canada, NZ, US and UK

5. Real cash rates (on annual inflation) – Australia lagging s

Cash rates have risen, but have they risen by enough?

How high should cash rates be to contain inflation?

The key is ‘real’ interest rates (cash rate less inflation).

Chart 5 below shows cash rates less annual inflation rates:

Ashley Owen Chart 5 showing cash rates less annual inflation rates

6. Real cash rates (on inflation running rate) – Australia well below what is required to control inflation

The better measure of real interest rates is the cash rate less the current running rate for inflation:

The better measure of real interest rates is the cash rate less the current running rate for inflation:

Australia currently has a real cash rate of around zero. Most other countries have positive real interest rates.

Real interest rates are the crux of the problem, and they are the prime long term policy measure for central banks.

Throughout history, real interest rates have averaged around 2% to 3%. This is consistent with economic theory, which says that the average real interest rate over time should be around the average real growth rate of the economy – which is also 2% to 3%  in order to prevent inflation from rising. 

This will vary up and down through economic cycles, but the real interest rate will need to be around 2% to 3% over a cycle.  

Even after the aggressive rate hikes over the past year and a half, real interest rates are still around zero to 1%, and inflation is still running well above target.

Although the full impact of recent rate hikes have yet to be passed on in full to borrowers, it is clear that the rate hikes to date have not done enough to bring inflation back to target.

Even when inflation is brought down to target ranges, real cash rates will need to be around 2% to contain inflation. Therefore if inflation is say 2% or 3%, and real economic growth is say 2% (most of which is just population growth in the case of Australia), this would require a real interest rate of 2%, and that would mean cash rates of around 5%.

Ordinarily, the current inflation running rates, plus the slowing trend of inflation, would point to central bankers work almost being done.

Except for two wee problems -  

7. Unemployment rates – Australia lower than most

The first problem is unemployment. Jobs markets are still very tight here and around the world:

Unemployment graph in Austraia October 2023

Wages are rising everywhere. Even the RBA’s own staff rejected an 11% pay rise!

Rising wages without an equivalent rise in output just pushes prices higher and feeds an inflationary spiral.

Government spending sprees

The other missing link is government spending. Central banks are trying to put their foot of the brakes, but their governments are doing everything they can to keep their foot on the accelerator.

We will cover this in future editions.

Stay tuned for another rate hike or so (or 'higher for longer inflation', which is an even worse outcome for investment markets).

‘Till next time – happy investing!

Thank you for your time – please send me feedback and/or ideas for future editions!


This article is written by Ashley Owen, CFA and the views expressed are his own.

Ashley is a well known Australias investment market commentator with over 40 years experience.

e:  This email address is being protected from spambots. You need JavaScript enabled to view it.

LI: LinkedIn

Contact us

This email address is being protected from spambots. You need JavaScript enabled to view it.


0414 443 236