The RBA sets the cash rate. It does not personally ruin your brunch.
Interest rates are a blunt tool. They affect mortgages, savings, business decisions and confidence, but they cannot fix every price rise with one tidy little lever.
The cash rate is the main lever
The Reserve Bank of Australia sets a target for the cash rateCash rate The overnight interest rate banks charge each other for short-term funds. It influences, but does not directly set, the rates households and businesses pay.. Banks then adjust the interest rates they offer borrowers and savers. Not instantly. Not perfectly. But closely enough that everyone notices.
Higher rates tend to slow spending because borrowing costs more and saving looks more attractive. Lower rates tend to encourage spending and investment. Tend to. Economies are not vending machines.
Its job is balance
The RBA is trying to keep inflation under control while supporting employment and financial stability. Those goals can pull against each other. If prices are rising too quickly, higher rates may help. If the economy is weak, higher rates can also make life worse. Helpful.
The catch
Rate changes work with a lag. A decision today can take months to show up in household spending, business hiring and inflation data. That makes certainty in rate commentary mostly costume jewellery.
What it cannot do
The RBA cannot build houses, unclog ports, lower global oil prices, write tax policy or make supermarket competition less weird. It can influence demand. It cannot directly fix every supply problem.
So when rate decisions become political theatre, the useful question is narrower: is inflation being driven by demand the RBA can cool, or by costs it can only make more painful?
The RBA has power. Just not the tidy kind headlines keep implying.