Measures of underlying inflation, such as the trimmed-mean inflation rate and the weighted median price, also came in at record highs. These statistics indicate that prices are increasing rapidly across the Australian economy.

The Reserve Bank of Australia (RBA) is expected to increase interest rates by 0.25 percentage points at its next meeting on February 7th and likely several more times throughout 2023 in order to fulfill its mandate of keeping inflation between 2% and 3%. Higher interest rates will encourage households to spend less and save more, and will also make the dollar more valuable. This will help to make imports cheaper and will also lead to higher loan repayments for households with a mortgage.

While economists expect inflation to have peaked, the pace at which it will then fall is still uncertain. If rents continue to rise or wage growth picks up, it's possible that the CPI will continue to rise, resulting in the RBA lifting rates. However, if the rate of inflation starts to fall more quickly towards the 2-3% target band, the RBA may not need to increase interest rates as much.

Overall, there remains a high degree of uncertainty in the outlook of the Australian economy. Policymakers will need to remain flexible when setting macroeconomic policy and be ready to adjust interest rates as the economy changes.