If, as seems likely, the combined might of the advanced economies’ central banks pushes the world into recession, the biggest risk isn’t that they’ll drag us down too, but that our Reserve Bank will raise our own interest rates too far.

That’s the message to us – and everyone else – from the International Monetary Fund’s repeated warnings about the unexpected consequences of “synchronised tighten” by the big economies – America, Europe and, in its own way, China, all jamming on the brakes at the same time.

Synchronised macro-policy shifts are a relatively new problem in our more globalised world economy. Until the global financial crisis of 2008, world recessions tended to roll from one country to the next. Since then, everyone tends to start contracting – or stimulating – at the same time.

When you were stimulating while your trading partners weren’t, much of your stimulus would “leak” to their economies, via your higher imports. But, as we learnt in the fight to counter the Great Recession, when everyone’s stimulating together, your leakage to them is offset by their leakage to you, thus making your stimulus stronger than you were expecting.

The fund’s warning is that we’re now about to learn that the same thing happens in reverse when everyone’s hitting the brakes – budgetary as well as monetary – together. Synchronisation will make your efforts to restrain demand (spending on goods and services) more potent than you were expecting.

So the fund’s message to us is: when you’re judging how high interest rates have to go to get inflation heading back down to the target, err on the side of doing too little.

But there are four other factors saying the Reserve should be wary of pushing rates higher. The first is Treasurer Jim Chalmers’ confirmation in last week’s budget that the “stance” of his fiscal policy has also switched from expansionary to restrictive, and so is now adding to the restraint coming from tighter monetary policy.

Chalmers has cut back the Coalition’s spending programs to make room for Labor’s new spending plans, while “banking” the temporary surge in tax revenue arising from the war-caused jump in world energy prices, and the success of the Coalition’s efforts to return us to full employment.

As a result, the budget deficit has fallen from a peak of $134 billion (equivalent to 6.5 per cent of gross domestic product) in 2020-21, to $32 billion (1.4 per cent) in the year to this June. The present financial year should see that progress largely retained, with the deficit rising only a little.