Central banks in New Zealand and Korea have pushed ahead with further super-sized interest rate rises as they attempt to tame rampant inflation.

Both have been at the forefront of global central bank moves to quell inflation, lifting rates from pandemic lows in the second half of 2021, many months ahead of most other central banks, including the Reserve Bank of Australia (RBA), which first moved in May.

The Reserve Bank of New Zealand (RBNZ) increased its benchmark overnight cash rate target from 2 to 2.5 per cent on Wednesday, while the Bank of Korea (BoK) also raised rates by 50 basis points earlier that morning to 2.25 per cent.

It is the third meeting in a row that New Zealand's central bank has lifted rates by half a percentage point, and the move was expected by almost all analysts.

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Traders are currently pricing in a roughly 50/50 chance that the RBA will follow its neighbour across the ditch with a third consecutive 50-basis-point rate rise in August.

Such a move would take Australia's cash rate to 1.85 per cent.

Those who do not expect a half-a-percentage-point rise are expecting that the RBA will raise the cash rate by 25 basis points to 1.6 per cent.

Are interest rates nearing their peak?

Many economists are now coming to the view that the string of aggressive rate rises in many countries may be nearing an end.

While Marcel Thieliant from Capital Economics expects another 50-basis-point rate rise in New Zealand next month, taking its cash rate to 3 per cent, he also expects it will not go much higher than that.

"Our view remains that the ongoing housing downturn will weigh heavily on residential investment and constrain household spending, ultimately forcing the bank to stop hiking once the policy rate reaches 3.5 per cent by year-end," he wrote.

Mr Thieliant's colleague who covers Asia, Gareth Leather, sees a similar outlook for Korea.

"We think inflation will stop rising soon and will start to drop back sharply early next year," he noted.

"We expect headline inflation to start falling from August.

"Meanwhile, weaker economic growth – caused by the slowdown in the global economy and the drag from recent policy tightening – should cause underlying price pressures to subside."

While financial markets are pricing in further rate increases for Korea in 2023, Mr Leather thinks the BoK will stop hiking this year.

Some leading Australian economists also expect the RBA to soon slow down its pace of rate increases.

"A more cautious approach will be appropriate once policy has moved to 'neutral' in August," wrote Westpac's chief economist Bill Evans in the bank's latest consumer sentiment report, which recorded a steep drop in confidence.

The Commonwealth Bank's economists are among those expecting the Reserve Bank to slow down its rate rises to 25 basis points next month, and they are expecting the cash rate to peak at 2.1 per cent by the end of this year.