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Source: The Conversation (Au and NZ) – By Ian Martin McDonald, Emeritus Professor, The University of Melbourne

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At last, the government and the Reserve Bank are singing from the same song sheet. Both say they will keep supporting the economy (the government with big deficits, the Reserve Bank with ultra-low interest rates) until the unemployment rate is well below 5%.

Australia’s leading economists back them.

Of the 60 leading economists surveyed by the Economic Society ahead of the budget, more than 60% wanted stimulus until the unemployment rate was below 5%.

One in five economists wanted stimulus until the rate was below 4%. Five wanted a rate below 3%.



The Conversation, CC BY-ND

The official unemployment rate is currently 5.1%. We’ll get an update on Thursday.

How much lower we can push it without creating increasing inflation is in large measure a technical question, one myself and colleague Jenny Lye have attempted to estimate using 50 years of data on variables including union membership and unemployment benefits between 1967 and 2017.

Union power and the level of unemployment benefits help determine how low unemployment can go before employers are forced to increase wage rises.

Power and benefits

Union power is important because the greater is union power, the higher is the rate of unemployment required to keep union-driven wage inflation in check.

Unemployment benefits are important because they contribute to the attractiveness of unemployment and thus to the difficulty employers face to prevent employees walking.

The more people are paid in unemployment benefits, the higher the rate of unemployment needs to be to keep employer-driven wage inflation in check.

We call the minimum rate of unemployment consistent with non-increasing wage inflation “umin”. An unemployment rate above “umin” means the rate of wage increases will remain steady. If it’s below “umin”, wage increases will start to climb.




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Our estimates have umin changing from 2% in the late 1960s, to 6% in the mid 1970s and 1990s, to less than 4% after the global financial crisis.

Our most recent estimate, for 2017, is 3.3%.

That estimate — that Australia could have a 3.3% unemployment rate without increasing wage inflation — is lower than the 4.5% estimate by researchers at the Reserve Bank and the 4.75% estimate adopted by the Treasury.

It is also much lower than the 5% unemployment Australia achieved pre-COVID.


umin estimates, Australia 1967-2017

umin is the minimum rate of unemployment consistent with non-increasing inflation. Upper and lower estimates = 95% confidence level.


Taken together, our series of estimates suggest that since 2012 we could have achieved much lower unemployment than we have without troubling inflation.

Whether umin has edged higher or lower since our most recent estimate in 2017 depends in part on the size of subsequent changes in union power and unemployment benefits.

An advantage of our estimates is that they help explain why umin has varied over time.

By contrast, the Reserve Bank and Treasury estimates shed no light on causes. They derive from statistical relationships between unemployment and wages which have changed over time without an explanation of why tat has happened.




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Our estimates quantify the impacts of union power and unemployment benefits.

In 1975, when 51% of the workforce was unionised and unemployment benefits were as high as 28% of male after-tax average earnings, we estimate umin at 5.7%.

Since then union membership has fallen to 17%, and unemployment benefits have fallen to 23% of male after-tax earnings.

One or both of them would need to fall further to get umin down to the 2% we used to have.

We can reach 3.3% but perhaps not 2%

When umin was 2% between 1967 and 1971 unemployment benefits were lower than they are today, averaging 14.7% of male after-tax average earnings.

Our estimates suggest that with union membership where it is today, unemployment benefits would need to fall a further 5 percentage points (from 23% to 18% of male after-tax earnings) to get umin back down to 2%.

It is important to realise that cutting umin would not automatically cut the rate of unemployment to umin.




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The government would need to stimulate the economy in order to get it there, as it now says it is willing to do.

The gains to well-being of cutting unemployment to umin are substantial, especially for those at the end of the job queue and new entrants to the labour force, such as young people. Our calculations suggest there is little to be lost from trying to achieve them.

But it would be wise to tread carefully. Jeff Borland of Melbourne University laid out a reasonable approach in his response to the Economic Society survey.

He said if we get the unemployment rate down to 4% and find that inflationary pressures are not present, we should “try to push lower”.

The Conversation

Ian Martin McDonald has received funding from the Australian Research Council.

ref. Our estimates suggest we can get Australia’s unemployment down to 3.3% – https://theconversation.com/our-estimates-suggest-we-can-get-australias-unemployment-down-to-3-3-161900

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