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How Do Higher Interest Rates Lower Inflation?

Interest rates are the main tool the RBA uses to keep inflation low and stable.

Higher interest rates can be difficult for many Australians. But bringing inflation down is important because high inflation hurts everyone. Discover below how the RBA uses higher interest rates to slow the economy and lower inflation.

High inflation hurts everyone

Inflation measures how fast prices are rising. When inflation is too high, the cost of everyday items like groceries, clothes and rent can rise too quickly, making it hard to keep up. But it doesn’t stop there: high inflation can feed on itself and quickly get out of control.

One reason that prices can rise too quickly is when total spending on goods and services in Australia is greater than what the economy can sustainably produce. Think of a popular concert. When lots of people want tickets but there aren’t enough available, ticket prices rise more quickly.

So, one way to stop prices from going up too fast is to slow total spending in the economy. The aim is to bring spending more in line with what the economy can produce. This is the RBA’s job – to keep inflation low and stable by keeping the economy in balance.

Learn more about inflation.

The RBA raises interest rates to bring inflation down

When inflation is too high (and is expected to stay high), the RBA can raise interest rates to help rebalance the economy. Higher interest rates tend to slow total spending in the economy and this in turn helps to lower inflation. We know higher interest rates are difficult for many Australians. But bringing inflation down is important because high inflation hurts everyone.

The RBA raises interest rates by changing the ‘cash rate’, Australia’s official interest rate. Changes in the ‘cash rate’ influence other interest rates across the economy, including rates on home loans, business loans and savings accounts.

Interest rates influence the spending, saving and borrowing decisions of all households and businesses. This makes interest rates an effective tool for managing inflation.

Let’s step through some examples.

Overall spending in the economy slows

Higher interest rates affect all households and businesses, regardless of whether they currently have a loan.

When millions of households and businesses decide to reduce their spending even a little, it makes a difference. Over time, spending slows across the economy.

Slower spending leads to lower inflation

When spending slows and comes more in line with how much the economy can produce, prices don’t rise as quickly.

For example, if higher interest rates mean less families go on holidays or they choose shorter holidays, then hotels and caravan parks will have more vacancies, and their prices won’t rise as quickly.

The same mechanism also works for many other prices in the economy. Slower spending helps inflation return to a low and stable rate, within the RBA’s target range of 2 to 3 per cent.

Check your understanding

Fact or fiction?

The RBA raises interest rates to slow spending and lower inflation.

Fact

Higher interest rates aim to slow spending in the economy. This helps bring down inflation over time.

Fact or fiction?

Changes in interest rates affect more than just people with mortgages.

Fact

Interest rates influence decisions around spending, saving and investing and therefore affect a wide range of households and businesses.

Fact or fiction?

Inflation can rise quickly when spending in the economy grows faster than the rate the economy can produce goods and services.

Fact

When demand grows faster than supply, prices tend to rise more quickly.

Fact or fiction?

Low and stable inflation benefits everyone.

Fact

Low and stable inflation protects the value of money and makes it easier to plan with confidence.