Star pupil Philip Lowe gives tips on why inflation is so low

Reserve Bank governor Philip Lowe started his study of economics at high school in Wagga Wagga and finished it with a PhD from the Massachusetts Institute of Technology. Much thanks to his teacher, Mrs King, whose teaching style convinced him economics was interesting as well as important.

The great attraction of high school economics is its emphasis on linking theory to current events.

According to a speech he gave last week, when Lowe did the HSC in 1979, the standard exam question was: why does Australia have both high inflation and high unemployment ("stagflation") and what’s the government doing about it?

In those days there was much interest in the "misery index", which adds the inflation rate to the unemployment rate. We got to peaks well above 20 per cent. Today, however, it’s below 7 per cent.

As the Australian Bureau of Statistics advised this week, the consumer price index rose by just 1.6 per cent over the year to June. Which means it’s been below the Reserve’s inflation target of "between 2 and 3 per cent, on average, over the medium term" for almost five years.

So Lowe’s guess is that, these days, exam questions are likely to ask: why is inflation so low at the same time as unemployment is also low – and what’s the government doing about it?

Just to be of help, he told us how he’d answer the question – which is one of interest and importance to all of us, not just youngsters preparing for their finals.

He started by noting that very low inflation has become the norm in most economies. At present, three-quarters of advanced economies have an inflation rate below 2 per cent.

There’s no single answer, he says, but there are three factors that, together, help explain what’s happened.

First, the credibility of the monetary "frameworks" that central banks eventually adopted when, in the second half of the 1970s, they realised inflation was way too high and needed to be got under control.

It wasn’t until the early '90s that our Reserve Bank adopted its present target for inflation which, as Lowe says, helped cement low inflation “norms” in the economy. In econospeak, it provided an anchor for business and unions’ expectations about how much prices were likely to rise over the next year or two.

"Many people understand that if inflation were to pick up too much, the central bank would respond to make sure the pick-up was only temporary,” Lowe says.

It would do so by raising interest rates and so discouraging borrowing and spending, of course. Economists call this the "monetary policy reaction function".

(It’s one of the reasons for the old view among economists that attempts to use the budget to stimulate demand by cutting taxes or increasing government spending wouldn’t achieve much. The central bank, fearing the stimulus would push up inflation, would react by raising interest rates and so stymie it. In the new world of continuing weak demand and too-low inflation, however, central banks are most unlikely to react to budgetary stimulus in such a way, meaning the new view is that budgetary stimulus is very effective.)

Has inflation targeting worked? Well, annual inflation has averaged 2.4 per cent since the target was adopted, so it certainly seems to have.

The second part of Lowe’s explanation for very low inflation is that spare capacity to produce goods and services (including spare workers who are unemployed or under-employed) in many advanced economies means there’s little upward pressure on prices.

That certainly seems the case in Australia. Our unemployment rate could go a lot lower than its present 5.2 per cent without causing wages to take off – especially with our under-employment rate of 8.3 per cent.

Our labour market seems to be more flexible – and less inflation-prone - than it used to be.

The third part of his explanation is that changes in the structure of the economy caused by technology and globalisation seem to be keeping prices low.

For one thing, digitisation and globalisation seem to be lowering the cost of producing many goods. The entry of China and other emerging economies into the global trading system has added hundreds of millions of factory workers to the global market.

The prices of manufactured goods in the advanced economies have barely increased over the past couple of decades.

For another thing, globalisation and advances in technology are making markets more contestable and increasing competition. This is extending beyond manufacturing to almost every corner of the economy, including the services sector.

Historically, most services couldn’t be traded across national borders. But globalisation – driven mainly by advances in information and communication technology – means many services can now be delivered by somebody in another country.

Examples include preparation of architectural drawings, document design and publishing, and customer service roles (a nice name for call centres). As well, many tasks such as accounting and payroll have been automated.

The internet and its digital “platforms” have revolutionised services such as retail, media and entertainment, and transformed how we communicate, and search for information and compare prices.

"These changes are having a material effect on pricing, with services price inflation lower than it once was. Many firms know that if they don’t keep their prices down, another firm somewhere in the world might undercut them," Lowe says.

"And many workers are concerned that if the cost of employing them is too high, relative to their productivity [an important qualification], their employer might look overseas or consider automation."

More broadly, using the internet for better “price discovery” keeps the competitive pressure on firms.

The end result is a pervasive feeling of more competition. And more competition normally means lower prices.

What’s the government doing about low inflation and the deficient demand that is part of its cause?

Well, if you mean the elected government, the short answer is: not nearly enough. Especially when you remember how little scope the Reserve Bank has left to cut interest rates.

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Change is inevitable. If we embrace it we win; resist it we lose

Will Australia’s future over the next 40 years be bright or pretty ordinary? It could go either way, depending on how we respond to the challenges facing us. So what do we have to do to rise to the occasion?

The challenges, choices and likely consequence we face are spelt out in the report, Australian National Outlook 2019, produced by the CSIRO in consultation with 50 leaders from companies, universities and non-profits. The group was chaired by Dr Ken Henry, former Treasury secretary, and David Thodey, former boss of Telstra.

The report identifies six main challenges we face between now and 2060. First is the rise of Asia and the way it is shifting the geopolitical and economic landscape.

Asia’s middle class is growing rapidly, but unless we improve our ability to compete and also diversify our exports, we risk missing out on this opportunity and will be vulnerable to external shocks.

Next is the challenge of technological change, such as artificial intelligence, automation and biotechnology, which is transforming existing industries and changing the skills required for high-quality jobs.

Third challenge is climate change, the environment and loss of biodiversity. These pose a significant economic, environmental and social threat to the world and to us. We could be on a path to 4 degrees global warming by the end of the century unless significant action is taken.

Then there’s the demographic challenge: at current growth rates Australia’s population may approach 41 million by 2060, with Sydney and Melbourne housing 8 to 9 million people each. At the same time, ageing means the population’s rate of participation in the workforce could drop from 66 per cent to 60 per cent. (I don’t accept that such a rate of population growth is either inevitable or desirable.)

The fifth challenge is that trust in governments, businesses, other organisations and the media has declined. Without a lot of trust, it will be much harder to agree on the often-tough measures needed to respond to all these challenges.

Finally, measures of social cohesion have fallen in the past decade, with many Australians feeling left behind. Inequality, financial stress, slow wage growth and poor housing affordability may be contributing to this.

The report develops two plausible but opposite scenarios of how things may develop over the next 40 years. The “slow decline” scenario is the muddle-through future, in which we resist change for as long as we can. In the “outlook vision” scenario we agree to bite the bullet, resist the lobbying of declining industries, make the needed policy changes and exploit the benefits of new technology and trading opportunities.

Under the low-road scenario, real gross domestic product grows at an average rate of 2.1 per cent a year, whereas under the high-road scenario it grows by 2.8 per cent. This would cause average real growth per person to be 39 per cent higher than under the low-road.

Real wages would be 90 per cent higher in 2060 than today, compared with 40 per cent higher under the low-road.

The low-road approach would allow cities to continue to sprawl, whereas the high-road would involve increasing the density of cities by about 75 per cent compared with today. This would keep our cities highly liveable.

Urban congestion could be reduced by higher density. Vehicle kilometres per person would fall by less than 25 per cent under the low-road, compared with up to 45 per cent under the high-road.

Net carbon emissions would fall by only 11 per cent under the low-road, with total energy use increasing by 61 per cent on 2016 levels, and only a modest improvement in energy productivity (efficiency).

By contrast, net zero emissions would be reached by 2050 under the high-road, with a doubling of energy productivity per unit of GDP and total energy use increasing by less than 45 per cent.

Whereas returns to landowners would increase by about $18 billion a year under the low-road, they’d increase by up to $84 billion a year under the high-road.

There’d be minimal environmental planting in 2060 under the low-road, but between 11 to 20 million hectares under the high-road, accounting for up to a quarter of intensive agricultural land. This “carbon forestry” explains why net zero emissions could be achieved without significant effect on economic growth.

More biodiverse plantings and better land management could help restore our ecosystems. And low-emission, low-cost sources of energy could even become a source of comparative advantage for us, with exports of hydrogen and high-voltage direct-current power.

The report says we need to achieve five key shifts to get us on to the high road. First, Industry. We need to allow a change in the structure of our industry, by increasing the adoption of new technology and so increasing productivity. We need to invest in the skills of our workers to keep their labour globally competitive and ready for the technology-enabled jobs of the future.

Second, urban sprawl. We need to plan for higher-density, multicentred and well-connected capital cities to reduce sprawl and congestion. We need to reform land-use zoning, so diverse high-quality housing options bring people closer to jobs, services and amenities. We must invest in transport infrastructure, including mass-transit, autonomous vehicles and "active transit", such as walking and cycling.

Third, energy. We must manage the shift to renewable energy, which will be driven by declining technology costs for generation, storage and grid support. We need to improve energy productivity using new technology to reduce the waste of power by households and industry.

Fourth, land. We need to use digital and genomic technology to improve food technology and to participate in new agricultural environmental markets to capitalise on our unique opportunities in global carbon markets. This will help to maintain, restore and invest in biodiversity and ecosystem health.

Finally, culture. We need to rebuild trust, encourage a healthy culture of risk-taking and deal with the social and environmental costs of reform policies.

Trouble is, a public that’s willing to re-elect the reactionary Morrison government seems more likely to settle for the low-road than strive for the best we could be.

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Who pays for Google and Facebook's free lunch?

There may be banks that are too big to be allowed to fail, but don’t fear that the behemoths of the digital revolution are too big to be regulated. It won’t be long before Google and Facebook cease to be laws unto themselves.

It’s the old story: the lawmakers always take a while to catch up with the innovators. But there are growing signs that governments around the developed world – particularly in Europe and Britain - are closing in on the digital giants.

And here in Australia, the Australian Competition and Consumer Commission is busy with the world’s most wide-ranging inquiry so far, which will report to the newly elected federal government in June. The commission’s boss, Rod Sims, gave a speech about it a few weeks ago, and another this week.

Sims says the commission’s purpose is “making markets work” by promoting competition and achieving well-informed consumers, so as to deliver good outcomes for consumers and the economy.

With this inquiry into the operations of “digital platforms”, he acknowledges that they have brought huge benefits to both our lives as individuals and our society more broadly.

“They are rightly regarded as impressive and successful, and very focused, commercial businesses. Google and Facebook are rapidly transforming the way consumers communicate, access news, and view advertising,” Sims says.

Each month, he says, about 19 million Australians use Google to search the internet, 17 million access Facebook, 17 million watch content on YouTube (owned by Google), and 11 million double tap on Instagram (owned by Facebook, along with WhatsApp).

The inquiry has satisfied itself that this huge size gives the two companies considerable “market power” – ability to influence the prices charged in certain markets.

“However,” Sims says, “being big is not a sin. Australian competition law does not prohibit a business from possessing substantial market power or using its efficiencies or skills to outperform its rivals.”

But the dominance of Google and Facebook does mean their behaviour should be scrutinised to see if it is harming competition or consumers.

To this end, the inquiry is focused on three potential areas of harm. First, the well-publicised issues of privacy and the collection and sale of users’ data.

Second, the digital platforms’ role in the advertising market, which is moving increasingly on line, where it’s estimated that 68¢ in every digital advertising dollar is going to Google (47¢) and Facebook (21¢).

And that’s not including classified advertising, the loss of which has been the biggest single blow to this august organ.

Sims says Google sells "search advertising", aimed at making an immediate sale, whereas Facebook sells "display advertising", aimed a making consumers aware of the product.

The pair sell ad space in their own right while also facilitating the advertising space sold by others, particularly the media companies. But the opacity of their algorithms and arrangements make it hard to know whether they favour their own ads over other people’s.

Advertisers say they don’t know what they’re paying for, where their ads are being displayed or to whom. This makes it harder for media companies to capture their share of advertising moving online.

Of course, higher costs for advertisers translate to higher prices for consumers.

Third is the digital platforms’ effect on the supply of news and journalism, the primary issue given to the inquiry.

Sims says newspapers and free-to-air radio and television are a classic example of a “two-sided market”. They serve consumers but, rather than charging them directly for the service as other businesses do, they cover their costs and profits by charging advertisers for access to their audience. (Newspaper subscriptions and cover prices accounted for only a fraction of their costs.)

Digital platforms aren’t just two-sided, they’re multi-sided. They, too, provide their services free, and charge advertisers, but also collect and sell to advertisers information about their users’ habits.

Google and Facebook select, curate, evaluate, rank, arrange and disseminate news stories. But they use stories created by others; they don’t create any news stories of their own. If they did, we could see this as no more than tough luck for the existing news media.

But as well as using the existing media’s stories to attract consumers and advertisers, about half the traffic on the Australian news media’s websites comes via Google and Facebook. So they have “a significant influence over what news and journalism Australians do and don’t see,” Sims says.

With the existing media having lost so much of its advertising revenue to the platforms, it’s not surprising they’ve had to get rid of at least a quarter of their journalists. There are a few new digital-only news outlets, but even they are having trouble making it pay.

Trouble is, news and journalism aren’t like most commercial products. They not only benefit the individual consumer, they benefit society as a whole. “Society clearly benefits from having citizens who are able to make well-informed economic, social and political decisions,” Sim says.

So news and journalism is a “public good” – if left to the profit-making private sector, not as much news and journalism will be supplied as is in the interests of society.

Public goods are usually paid for or subsidised by governments using taxpayers’ funds. If we want the benefits of Google and Facebook without losing the benefits of active, independent and challenging news media, taxpayers will have to help out.

Sims is canvassing several proposals before completing his final report. Since the former newspaper companies have realised they’ll never get much of a share of digital advertising, they’re now putting more hope in persuading their regular users to pay directly by buying subscriptions.

With the long-established attitude that everything on the internet should be free (or, at least, seem free), they’re finding it hard going.

That’s why I think Sims’ best suggestion is making personal subscriptions to the news media tax deductible, provided the outlet is bound by an acceptable code of conduct.

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Hey pollies: weak wage growth won't fix itself

The economy’s prospects are threatened by various risks from overseas – about which we can do little – and by continuing weakness in wage growth – about which the two sides contesting the May federal election have little desire to talk.

In his major economic speech last week, Scott Morrison gave wages only a passing mention: “by focusing on delivering a strong economy we create the right environment for wages growth, which we are now beginning to see, and more will follow”.

Actually, you need a microscope to see any improvement. The microscope shows that most of it is explained by the Fair Work Commission’s hefty 3.5 per cent increase in minimum wage rates last June.

(And why was it so generous? To offset the effect on pay packets of its earlier decision to phase down Sunday penalty rates.)

Not, however, that Bill Shorten has had a lot more than Morrison to say about the causes and cure of weak wage growth. Presumably, Shorten fears that anything he says about changes to wage fixing will be used to feed yet another scare campaign about him being a patsy for a union takeover.

Two or three years ago, I was happy to entertain the view still publicly espoused by the Reserve Bank (and still happily hidden behind by Morrison) that the wage problem was simply cyclical: wages are taking longer than expected to recover from the ups and downs of the resources boom but, be patient, they’ll come good soon enough.

Sorry, that possible explanation gets harder to believe as each quarter passes without any sign of nominal wage growth moving ahead of weak inflation, so as to give employees their rightful share of the improvement we’ve achieved in the productivity of their labour.

(And thus – ScoMo please note - giving the boost to real household disposable income, then consumer spending and then business investment spending, that has always been the greatest single contributor to “delivering a strong economy”.)

No, as years pass without the cycle restoring real wage growth, it becomes easier to believe the problem arises from some deeper issue with the structure of the economy.

The most popular structural explanation – best espoused by Professor Joe Isaac, an eminent labour economist – is that the “reform” of wage fixing went too far in shifting the balance of industrial bargaining power in favour of employers.

Isaac’s various proposals for reforming the reform – including restoring unions’ right of entry to the workplace, reducing the rigmarole before workers can strike, and restoring permission for industry-wide bargaining – would no doubt have crossed Labor’s mind for serious consideration should it win the election.

But another noted labour economist, former top econocrat Dr Mike Keating, has his doubts. He says he has no great objection to Isaac’s wage-fixing reforms, but doubts they’ll get wages moving because the structural problem is much deeper.

As argued in detail in his book with Professor Stephen Bell, Fair Share, and many articles and blogs, Keating sees our wages problem in the much broader context of the malaise of “secular stagnation” that’s been gripping the US and other advanced economies for at least a decade.

Keating reminds us that wage growth has been weak in most of the advanced economies for several decades, accompanied by rising inequality.

The distribution of earnings (that is, wages, rather than income from all sources) has become more unequal, Keating argues, mainly because of technological change and, to a lesser extent, globalisation.

Technological change has been “skill-biased”, with strong growth in high-skilled employment, and reasonable growth in unskilled jobs, but a decline in middle-level jobs, where routine jobs are being done by computers.

The result is a change in the structure of employment, one which increases earnings inequality. If so, it’s not a problem that could be fixed by higher wage-rates.

Keating says we’ve been slow in Australia to see what’s increasingly been realised overseas and by the international economic agencies: income inequality is bad for economic growth (mainly because the high-paid save rather than spend a higher proportion of their incomes).

But Keating’s more fundamental policy response to the problem of technology-driven weak wage growth and increased inequality is enhanced education and training, to help workers adjust to the challenges posed by new technologies, as well as spur the adoption of those technologies.

He’d give priority to early childhood learning and life-long learning through the TAFE system. He's happy to note this would require us to pay more tax rather than less – another thought the pollies don’t want us thinking about right now.

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Not sure what the economy's up to? Nor are the experts

There are times when the rich world’s macro-economists think they’ve got everything figured, and times when they know they haven’t. The latter is where we are now, with the entire profession scratching its head and wondering what’s causing the economy to behave as it is.

The last time economists thought they had it tabbed was between the mid-1980s and the mid-2000s. The world economy was growing so smoothly they decided we’d entered the Great Moderation and began patting themselves on the back.

Always a bad sign. Next thing we knew the global financial crisis had arrived and with it the Great Recession.

But it’s now a decade since the start of that recession, and it’s clear the advanced economies aren’t back to anything like what they were – even, despite appearances, the American economy.

The problem has various symptoms, but it boils down to slow economic growth, which boils down further to much slower rates of productivity improvement than we’ve been used to. This is surprising when you consider how much digital disruption we’re seeing. Isn’t that aimed at improving productivity?

So why is it happening? That’s anybody’s guess. A host of possible explanations is being advanced and debated. It could be another decade before a new conventional wisdom emerges.

I’ve written before about the thesis that the digital revolution won’t boost productivity the way earlier waves of general-purpose technologies did, about the thesis of “secular stagnation” and yet another idea that the main trouble is decades of weak business investment.

But last week Dr Luci Ellis, a Reserve Bank assistant governor, offered her own thoughts on yet another possible piece in the jigsaw puzzle. Productivity is generated by firms, but Ellis notes that, both in Australia and abroad, the evidence suggests that levels of productivity vary widely between firms, even within the same narrowly defined industry.

“Firms that are highly productive – so-called superstar firms – tend to grow faster, grow employment faster, and pay better than firms that are a long way from the frontier of productivity”, she says.

But there’s a problem. Because these superstar firms are more productive than average, they gain market share at the expense of less-productive competitors.

The leading firms could start moving further and further ahead of the pack.

Those that lag behind would then find it harder and harder to catch up. The result could be that markets become more concentrated.

“The market leader begins to reap monopoly profits, which isn’t good for consumers and might not be good for long-run innovation and [society’s] welfare”, she says.

But must the laggard firms never catch up? That may depend on why so many firms are lagging. If it’s because they lack managerial ability, it ought to be possible for them to copy the leaders’ superior approach or even poach their rival’s managers. If so, this would lift the whole industry’s – and the nation’s – productivity.

But what if the laggards have lower productivity because they aren’t adopting the latest technology the way the superstars are? There’s evidence this is the case in other advanced economies, but Ellis says we don’t yet know if it’s true in Australia.

If this superstar pattern has arisen only recently, it could be something to do with the nature of developments in digital technology and their ease of adoption.

Previous waves of general-purpose technologies, such as electricity or the earlier round of computerisation, had the benefit of reducing the level of skill needed to operate them, whereas innovations such as machine learning and artificial intelligence seem to have a very different character, she says.

“Using machine learning and other emerging techniques to automate routine business processes seems to involve specialist skills and, often, PhD-level training in statistics or computer science. These skills are much rarer and take longer to develop than those required for the jobs that are thereby replaced.

“That doesn’t mean it’s impossible, but it could take a long time,” she says.

And get this: if leading-edge technologies are (at present, anyway) unusually costly or difficult to adopt, they become a kind of barrier to entry protecting the firms that are already using those technologies.

That would be a worry if lagging firms never caught up. And if incumbents never face rivals, they’re more likely to become complacent. “Innovation could slow down, and growth in living standards with it”, she concludes.

So, is this the big reason productivity improvement has slowed throughout the advanced economies? Far too soon to say.

But it makes an important point: the problem, and the solution, lie in the hands of our big companies.

Governments may have a role in spending more – and more wisely – on education and training, but giving up a lot of revenue to cut the rate of company tax isn’t likely to make much difference.

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Digital disruption is changing us for better and worse

The rise of the internet and other aspects of the digital revolution has changed our working and private lives – mainly for the better. But all technological advance has its downside.

We tend to soon take the benefits for granted and are only starting to understand the costs.

To start with the latest, how many of us watched every moment of either or both grand finals, compared with how many of us actually attended the grounds?

If many of us did neither, it’s because digitisation has greatly multiplied the range of rival entertainments available to us – including while we’re supposed to be working.

Of course, the televising of sport – which has commercialised almost every (male) comp – began long before the internet. But it’s now digitally enhanced.

Trouble is, we seem to be watching more sport, but playing less. Is this a net plus?

Staying with leisure, who hasn’t passed many pleasant hours watching YouTube? Or spent hours on Facebook – still the only commercially significant social medium – thinking how much more exciting their friends’ adventures are compared to their own, or how better-looking or happier their grandkids are.

Mobile phones and social media have given us much more frequent contact with family and friends – although I agree with social commentator Hugh Mackay that digital contact is greatly inferior, in terms of emotional satisfaction and effective communication, to face-to-face contact.

We spend so much of our lives staring at screens, which seem to get smaller when we’re on the go, and ever bigger when we’re at home.

Indeed, I sometimes think there can be few white-collar jobs left – from chief executive to office kid - that don’t consist mainly of sitting at a desk in an office, staring at a screen. As a consequence, many jobs have become more office-bound.

Reporters, for instance, use up far less shoe leather. They “attend” a media conference without leaving the office. The hearings of the banking royal commission occurred mainly in Melbourne, but my colleague Clancy Yeates listened to almost every word by staying stuck to his desk in Sydney.

The internet has revolutionised banking, bill paying and how we pay for things in shops or repay a friend – and there’s a lot more to come. You need to be very old to think it noteworthy that these days we rarely darken the doors of our bank branch.

In the day, city workers devoted much of their lunch hours to walking a few streets to pay an electricity bill at the power company’s office. These days, you pay bills via the internet – or set up an arrangement to have them paid automatically.

(Lunch hours are disappearing, too. Eat something at your desk. But while you’re eating, it’s OK to switch from doing spreadsheets to catching up with the news on your favourite newspaper’s website.)

Some people find it harder to manage their money because it’s now less tangible and more conceptual. Pay envelopes stuffed with notes were long ago replaced by direct credits to your bank account. You pay for things with a plastic card (meaning many young people have trouble learning to manage their credit card). We now wave a card – or a phone – to pay the tiniest of amounts in stores.

When the Reserve Bank’s “new payments platform” – allowing you to move money from one account to another if you know, say, the other person’s mobile phone number – is fully adopted, it will be one of the last nails in the coffin of cheques, and bank notes will be a step closer to being used only by people up to no good.

Digital disruption – which has much further to run – almost always brings pain to conventional producers and their workers, but benefits to consumers. Digitised products are always more convenient and usually cheaper. They bring wider choice and easier comparison.

Online shopping is in the process of eliminating the “Australia tax”, whereby Australians pay higher prices for many items than consumers in America and elsewhere, but are sometimes blocked from accessing the cheaper foreign sites.

The digital revolution is changing the structure of our economy (as well as all the other advanced economies) in ways we don’t yet know about, don’t fully understand and don’t even know how to measure properly.

While the punters bang on about the cost of living, the Reserve Bank says one reason consumer price inflation stays so low is that heightened competition in retailing – most of it related directly or indirectly to digitisation – is forcing down prices, or holding them down.

Now we’re told that weak growth in wages is explained partly by the slowness with which advances in technology are spreading from the leading firm in an industry to the rest of them.

If so, that’s another downside from the digital revolution.

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Digging up a lot more coal won't bring more jobs

One thing I admire about greenies is their soft hearts. Whereas big business pushes its self-interest to the exclusion of all else, environmentalists worry that, in their efforts to save the planet, some workers may lose their jobs.

What worries me, however, is the greenies’ soft heads. Many of them profess to a soul above such sordid (and boring) matters as economics, but the less you know about economics the more easily you’re taken in by developers’ and politicians’ promises of Jobs and Growth.

Greenies know that the “green economy” creates jobs and growth, but worry that their opposition to the building of new thermal coal mines would cost jobs and growth.

So does the miners’ union. Hence the advent of “just transition” – the notion that the transition from fossil fuels to renewables needs to be “just” in that people who lose their jobs in the fossil fuel industries get treated fairly.

Fair enough. Trouble is, if you think the goal is to eliminate the need for workers and regions to change, rather than to help workers adjust to the reshaped economy – you end up doing crazy things like insisting new solar and wind farms are built near the old coal mines, rather than where there’s most sun and wind.

A particular sore point at present is the greenies’ implacable opposition to the establishment of Adani’s Carmichael coal mine in the Galilee Basin of Queensland. What about all the potential jobs and growth that wouldn’t happen?

Well, perhaps it’s not as big a problem as it seems. The thing about the economy that non-economists keep forgetting is that “everything’s connected to everything else”. And as the economists at the Australia Institute remind us in a new paper, when you trace through the linkages you realise that development of the Galilee Basin could be expected to displace a lot of mining jobs – maybe even more than it created.

First point, the Adani mine would be huge. It aims to produce 60 million tonnes of coal a year, making it three times the size of the highest producing mine in NSW.

And if some government subsidises a railway linking Adani’s mine to the nearest port, this would clear the way to building other mines in the Galilee Basin, which could take the basin’s total production to 150 million tonnes a year by 2035.

Australia is already the world’s largest coal exporter. Modelling by commodity analysts Wood Mackenzie, commissioned last year by the world’s largest coal export port, Port of Newcastle, estimates that such increased production would raise the world supply of internationally traded coal by about 15 per cent.

Wood Mackenzie estimates that, assuming the Paris agreement has little effect and world demand for traded thermal coal rises by 10 per cent out to 2035, the excess of supply over demand would cause coal prices to be $3 a tonne lower than otherwise in 2026, rising to $25 lower in 2030.

(Such an assumption about world demand is optimistic for coal producers and pessimistic for the planet. Coal use has been falling in Europe, the US and China, with global coal demand falling by 2 per cent in 2016, for the second year in a row. The International Energy Agency sees the traded thermal coal market as having contracted by 60 per cent in 2040 if countries keep their Paris commitments. If so, coal prices would fall by a lot more than Wood Mackenzie suggests.)

The lower world prices caused by the development of the Galilee Basin would discourage development of new mines – and thus the maintenance of production levels, as existing mines are worked out - in other coal producing regions.

Wood Mackenzie estimates that, by 2035, production in NSW’s Hunter Valley would be 86 million tonnes a year lower than would have been the case had the Galilee development not gone ahead.

For Queensland, this relative reduction would be 17 million tonnes a year for the Bowen Basin and 13 million for the Surat Basin. So, plus 150 million from the Galilee versus minus 116 million from the rest.

The Australia Institute economists’ study seeks to translate these relative reductions in production into relative reductions in employment. Based on Adani’s estimates of labour productivity in its mines, the whole Galilee Basin would employ between 7,800 and 9,800 people to produce 150 million tonnes per year by 2035.

By contrast, their most optimistic estimate is relative reductions of 9100 jobs in the Hunter Valley, 2000 in the Bowen Basin and 1400 in the Surat Basin, a total of 12,500.

How could a net increase in production yield a net decline in jobs? Much greater scope for economies of scale in the Galilee Basin. And that's before you take account of rapid advances in automation, such as driverless trucks controlled remotely from head office in Brisbane.

If we want Jobs and Growth in the future, mining ain’t the place to look.

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Retailers affecting the economy in ways we don’t see

As uncomprehending punters complain of the soaring cost of living, and the better-versed ponder the puzzle of exceptionally weak increases in prices and wages, don't forget to allow for the strange things happening in retailing.

It's a point the Reserve Bank's been making for months without it entering our collective consciousness the way it should have.

The debate over the cause of weak price and wage growth has been characterised as a choice between a "cyclical" (temporary) problem as we recover only slowly from the resources boom, and a "structural" (long-lasting) problem caused by the effects of globalisation and industrial relations "reform" that's robbed employees of their power to bargain collectively.

To the annoyance of protagonists on both sides, I've taken a bit-of-both position. But the Reserve has raised a different structural contributor to the problem: the consequences of greatly increased competition in a hugely significant sector of the economy, retailing.

The media have focused on the digital disruption aspect, with the arrival in Oz of the ultimate category killer, Amazon Marketplace.

But that happened only late last year and, although retailers may already have been tightening up on wage increases and other costs in anticipation of greater threat from online competitors, much of those consequences are yet to be felt.

Of greater significance to date is the arrival of new foreign bricks-and-mortar competitors such as Aldi and Costco.

As Dr Luci Ellis, an assistant governor of the Reserve, said last month, "Australia has seen a marked increase in the number of major retail players. Foreign retailers have entered the local market in recent years and continue to do so.

"This has also induced the existing players to reduce their costs to stay competitive, for example by improving inventory management. This has probably been a bit easier for larger or less-diversified retailers than for smaller firms.

"Whether through lower costs, narrower margins or a combination of both, this competitive dynamic has weighed on prices for consumer durables.

"And for staples such as food, competition and related changes in pricing strategies (such as 'everyday low price' strategies) have contributed" to keeping prices low.

If you doubt that adds up to much, try this. According to the consumer price index, prices of food and non-alcoholic beverages (including restaurant and take-away meals) were almost unchanged over 15 months to December, and rose only 3.6 per cent over the previous six and a half years.

Prices of clothing and footwear fell by 3.5 per cent over the 15 months to December, and fell by 4.6 per cent over the previous six and a half years.

Prices of furniture and household equipment fell by 1.5 per cent over the 15 months to December, and rose by just 4.5 per cent over the previous six and a half years.

As Reserve Bank governor Dr Philip Lowe has remarked, this is good news for consumers, although not for some retailers – nor their employees, for that matter.

Sometimes I think everyone would be a lot happier if prices and wages were growing by 4 per cent a year rather than 2 per cent. This would be a delusion, of course, but the beginning of behavioural economic wisdom is to realise that illusions abound in the economy.

Low inflation is not a bad thing to the extent that it's caused by increased competition forcing down businesses' profit margins – and goodness knows the two big supermarket chains have plenty of profitability to cut into.

Indeed, the benefit to consumers – who, remember, include all employees – makes competition-caused low inflation a good thing. (What's not a good thing is low inflation caused by weak demand.)

And particularly where increased competition involves innovation and digital disruption, it usually brings consumers greater choice and convenience, not just lower prices.

The downside of increased competition and digital disruption, however, is the adverse consequences for employees. Some may lose their jobs; many may find pay rises a lot harder to extract from bosses worried about whether their business has a viable future.

Retailing is our second biggest employer, with about 1.2 million full-time and part-time workers. And whereas the overall wage price index rose by 2.1 per cent over the year to December, in retailing it rose by only 1.6 per cent. This was lower than all other industries bar mining, on 1.4 per cent.

It's likely to be some years yet before the disruption of retailing has run its course, and this may mean structural change in the sector acts as a continuing drag on wage growth overall.

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A bigger, better public sector will secure our future

There are important lessons to be learnt from the latest news about where our strong growth in employment is coming from. But if we listen to the nostrums of the Smaller Government brigade, we'll get them exactly wrong.

The (trend) figures we got from the Australian Bureau of Statistics last week showed employment growth of 370,000 – or 3.1 per cent – over the year to November. More than 80 per cent of the new jobs were full-time.

Great news.

But my esteemed colleague Peter Martin delved deeper and came upon a bigger story: the strong growth in employment has not been spread evenly across the economy, but is heavily concentrated in just two industries: "healthcare and social assistance" and construction.

It's also concentrated disproportionately in Victoria and NSW, and among women workers.

Why? Because, though employment in health and aged care has been growing strongly for years, the latest bout can be attributed mainly to the delayed rollout of the national disability insurance scheme initiated by Julia Gillard. Most of these extra workers would be female.

And because the strong growth in construction employment can be attributed mainly to a boom in infrastructure spending by the Victorian and NSW governments, much of it induced by Joe Hockey's incentive payment to state governments which engaged in "asset recycling" by using the proceeds from privatisation to build new infrastructure.

Oh no! You mean the growth in employment isn't the real deal? It's just some kind of temporary budget stimulus? It's not coming from the productive private sector, just from the unproductive, parasitical public sector, which wouldn't exist without the private sector's blood to suck upon?

Remember what I said last week about neoliberalism being ideology masquerading as economics? That last paragraph was a classic case.

It's true that, in some sense, the disability scheme and state infrastructure projects are instances of fiscal (budget) stimulus. But the notion that government deficit spending "crowds out" private sector spending is true only when the economy is booming and already at full employment – which we clearly aren't at present.

Just imagine how much weaker the economy would be now if government spending hadn't caused full-time employment to grow by up to 300,000 jobs over the past year.

The news that so much of the past year's employment growth has come from public deficit spending is actually vindication of the Reserve Bank's longstanding call for monetary policy (interest-rate) stimulus to be backed up by fiscal stimulus.

Note, too, that while even all full-time construction jobs are temporary in the sense that all projects end, employment associated with the disability scheme will continue indefinitely.

And, since governments tend to outsource both their construction projects and their disability care packages, most of the new jobs would actually be classed as in the private sector.

Of course, the notion that the private sector is productive but the public sector isn't is sheer economic illiteracy. We've long lived in a "mixed economy" in which most goods and services are produced by the private sector but, for good reason, some services are produced (or, at least, funded) by the public sector.

As I also wrote last week, economists are doing battle against the misapprehension scaring our youth that robots will reduce the amount of work needing to be done – the latest incarnation of what economists have long called the (fixed) "lump of labour fallacy".

While it's true new technology has been destroying jobs since the start of the Industrial Revolution, it's equally true that in those two centuries we've never yet run out of other jobs we'd like to pay someone to do for us.

Since the 1960s, a large share of these green-fields jobs has gone to women, facilitating their (continuing) mass movement back into the paid workforce after child-bearing.

But here's the most important lesson to learn from the news that most of the growth in good, full-time jobs in recent times has come from the government: much of the new demand for people to do new things for us will involve new jobs delivering services in, or funded by, the public sector.

That's because almost all the services best provided or funded by the public sector are "superior goods" – things we want more of as we get richer: education and training, healthcare, aged care, disability care and much else, even law and order.

So the greatest threat to continued growth in the "lump of labour" comes not from robots, but from those wanting to put some arbitrary cap on the size of government – and, of course, on the amount of tax we pay.

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Robots won't reduce the amount of work we need to do

For me, one of the most significant economic developments of this year was realising how pessimistic many of our youth have become about their prospects of ever landing a decent full-time job.

To be sure, some degree of frustration on their part is understandable. Although it's true we avoided a severe recession following the global financial crisis of 2008, it's equally true that, until recently, employment growth has been weaker than usual in the years since then.

And the burden of this weaker growth has fallen disproportionately on young people leaving education to look for their first full-time job.

What's less understandable is the way older, and supposedly more knowledgeable, people have sought to demonstrate how with-it and future-focused they are by spreading wildly exaggerated predictions about how many jobs will be taken by robots, scaring the pants off our youth and convincing them they're doomed to a life of "precarious employment" in the "gig economy".

I'm sorry to say that the otherwise-worthy Committee for Economic Development of Australia was responsible for writing on many young minds the near certitude that 40 per cent of jobs in Australia are likely to be automated in the next 10 to 15 years.

The good news, however, is that, for once, economists were moved by all the amateur analysis they were hearing to join the debate about the future of work. Dr Alexandra Heath, of the Reserve Bank, dug out the hard evidence about how the nature of work is changing and Dr David Gruen, of the Department of Prime Minister and Cabinet, put worries about the shrinking number of jobs into their historical context.

But the charge has been led by Professor Jeff Borland, of the University of Melbourne, one of our top labour-market economists.

With a colleague, Dr Michael Coelli, Borland examined the papers behind the claim of 40 per cent of jobs being lost to robots, and found it built on questionable foundations. In their figuring, the 40 per cent was likely to be nearer 9 per cent.

And last week Gruen rejoined the fray, giving a big speech about it in, of all places, Jakarta.

Predictions about what will happen in the economy can be based on the belief that it will respond to new developments in much the same way it responded in the past to similar developments, or on the belief that "this time is different".

People who know little economic history are always tempted, as many people are now, to assume this time is different.

But economists have learnt the hard way that this time is rarely very different. The fact is, people have been predicting that the latest technology would reduce the number of jobs since the Luddites at the start of the Industrial Revolution.

Gruen reminds us that, in 1953, the great Russian-American economist Wassily Leontief wrote that "labour will become less and less important ... More and more workers will be replaced by machines."

Borland notes that, in the 1960s, Lyndon Johnson established a presidential commission to investigate fears that automation was permanently reducing the amount of work available.

In 1978, Monash University held a symposium on the implications of new technologies, with the convenor predicting that, by 1988, at least a quarter of the Australian workforce would be made redundant by technological change.

Then there was Labor legend Barry Jones' prediction in his best-selling Sleepers Wake! that "in the 1980s, new technologies can decimate labour force in the goods producing sectors of the economy".

Gruen admits that "there is no doubt that, over the past two centuries, waves of technological change have eliminated jobs, and rendered some occupations obsolete.

"But they have also facilitated the creation of new jobs to take their place – either directly, or indirectly as a result of rising standards of living generating new demands."

There are two processes at work, he says. One is that technology takes jobs away – this is the bit we can all see. What we can't see is the second process, the invention of new complex tasks, leading to new jobs.

The history of technological advance over the past 200 years has shown the second process has broadly kept pace with the first.

Computers have been changing the way businesses do their business – and destroying jobs – since the early 1980s. If that's all there was to it, there ought to be far fewer jobs today.

But the number of Australians with jobs has increased by a factor of 2.7 since the mid-1960s, while the average number of hours worked per person has remained broadly stable. Fact.

Like the economists, I find it hard to believe this relationship is about to break down because "this time is different".

What's true is that the nature of work has been changing – slowly – for the past 30 years or so, and this trend is likely to continue. It may accelerate, but it hasn't yet.

Using research by Heath, Gruen says routine cognitive jobs (such as office assistants, sales agents, brokers and drivers) and routine manual jobs (factory workers, construction, mechanics) are in less demand, whereas non-routine manual jobs (nurses, waiters, security staff) and non-routine cognitive jobs (engineers, management, healthcare, designers) are in increasing demand.

It's the changing nature of work, not a fall in the amount of it, we should be preparing for.

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Our bulldust detectors are on the blink

The world has always been full of bulldust, which is why everyone should come equipped with a bulldust detector.

Trouble is, we're living in a time of bulldust inflation. Some of the things we're being told are harder and harder to believe. But a lot of people's detectors seem to be on the blink.

Part of the reason for the step-up may be that there are so many people shouting that anyone else hoping to be heard has to start shouting too.

These thoughts are prompted by the runaway success of the claim that 40 per cent of jobs in Australia are likely to be automated in the next 10 to 15 years.

This is a fantastic claim in the original, dictionary sense: imaginative or fanciful; remote from reality.

And yet it seems many thousands of people have accepted its likelihood without question.

Similar predictions have been made about America, and are just as widely believed.

As I've written before, two economists, Jeff Borland and Michael Coelli, of Melbourne University, who didn't believe it – because they could find no evidence to support it – traced the origins of the claim and the flimsy assumptions on which it was based.

Which led them to ask the question I'm asking: why do people so readily believe propositions they should find hard to believe?

The authors found a quote from a leading American economist, Alan Blinder, of Princeton University, in his book, After the Music Stopped.

"The consequences of adverse economic events are typically exaggerated by the Armageddonists​ – a sensation-seeking herd of pundits, seers and journalists who make a living by predicting the worst.

"Prognostications of impending doom draw lots of attention, get you on TV, and sometimes even lead to best-selling books . . .

"But the Armageddonists are almost always wrong," Blinder concludes.

What? Journalists? Bad news?

Blinder is right in concluding we take a lot more notice of bad news than good. Borland and Coelli observe that "You are likely to sell a lot more books writing about the future of work if your title is 'The end of work' rather than 'Everything is the same'.

"If you are a not-for-profit organisation wanting to attract funds to support programs for the unemployed, it helps to be able to argue that the problems you are facing are on a different scale to what has been experienced before.

"Or if you are a consulting firm, suggesting that there are new problems that businesses need to address, might be seen as a way to attract extra clients.

"For politicians as well, it makes good sense to inflate the difficulty of the task faced in policy-making; or to be able to say that there are new problems that only you have identified and can solve," the authors say.

I'd add that if you're a think tank churning out earnest reports you hope will be noticed – if only so your generous funders see you making an impact – it's tempting to lay it on a bit thicker than you should.

By now, however, it's better known that there are evolutionary reasons why the human animal – maybe all animals – takes more interest in bad news than good news.

It's because we've evolved to be continually searching our environment for signs of threat to our wellbeing.

All of us are this way because we've descended from members of our species who were pretty nervy, cautious, suspicious types. We know that must be true because those of our species who weren't so cautious didn't survive long enough to have offspring.

In ancient days, the threats we were most conscious of were to life and limb – being eaten by a wild animal. These days we keep well away from wild animals, but there are still plenty of less spectacular, more psychological threats – real or imagined – to our wellbeing.

This instinctive concern for our own safety is no bad thing. It helps keep us safe. It's an example of the scientists' "precautionary principle" – the dire prediction may not come to pass, but better to be on the safe side and take out some insurance, so to speak.

By contrast, failing to take notice of good news is less likely to carry a cost.

Except that, like many good things, it can be overdone. If we're too jumpy, reacting to every little thing that comes along, we're unlikely to be terribly happy. And unremitting stress can take its toll on our health.

Which brings us to the media. Journalists didn't need evolutionary psychologists to tell them the customers find bad news more interesting. Bad news has always received a higher weighting in the assessment of "newsworthiness".

But I have a theory that the news media have responded to greater competition – not just between them but, more importantly, with the ever-increasing number of other ways of spending leisure time – by turning up the volume on bad news.

This can create a feedback loop. People wanting their messages to be broadcast by a media that's become ever-more obsessed by bad news respond by making those messages more terrible.

I'm not sure the media have done themselves a favour by making the news they're trying to sell more depressing, BTW.

But Borland and Coelli offer a further possible explanation of why we're inclined to believe that the technological change which has been reshaping the jobs market for two centuries without great conflagration is about to turn disastrous: the cognitive bias that causes people to feel "we live in special times" – also known as "this time is different".

"An absence of knowledge of history, the greater intensity of feeling about events which we experience first-hand, and perhaps a desire to attribute significance to the times in which we live, all contribute to this bias," they say.

If so, a lot of people will continue believing stuff they should doubt.

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Jobs in the services sector have smartened up

So much for our ailing economy. Did you see that 264,000 additional jobs have been created in the first eight months of this year, with 88 per cent of them full-time?

That's a remarkable increase of 2.2 per cent in total employment, according to trend figures issued by the Australian Bureau of Statistics this week.

Where did all those jobs come from? We won't know for certain for a week or two, but I can tell you now: not from agriculture, the production of goods (mining, manufacturing, utilities and construction) or the distribution of goods (transport, postal and warehousing; wholesale and retail trade), but from household and business services.

How can I be sure all the net increase in jobs will have come from the services sector? Because that's been the case for about the past 40 years.

This isn't all that surprising. As the Reserve Bank's head of economic analysis, Dr Alexandra Heath, observed in a speech last week, one of the most pronounced changes in the structure of our economy [and all advanced economies] has been its move away from a goods-producing economy towards a more services-oriented economy.

This isn't because we're producing fewer goods – we aren't – but because the growth in our production of services has been much faster.

"Australians are producing more services, consuming more services and trading more services with other economies than ever before," Heath says.

One reason for the shift to a services-based economy is that Australian households have experienced remarkable growth in their real incomes, she says.

We've had uninterrupted growth for more than 25 years, and real income per household has more than doubled since the early 1960s.

"As incomes rise," she says, "households typically spend more of their income on household services – such as health, education and restaurant meals – than on goods."

But demand for business services – that is, businesses providing services to other businesses - has seen its share of gross value-added grow from less than 20 per cent in the early 1990s to more than 25 per cent today.

The category includes professional and technical services; information, media and telecoms; rental, hiring and real estate; and financial and insurance services.

Part of this growth is just the reclassification of existing activity from goods to services as businesses that produce and distribute goods have increasingly outsourced non-core activities to specialist providers in the services sector.

The trend to outsourcing has been encouraged by technological advance that's lowered the cost of communication and logistics (moving things around) and meant that the scope and complexity of what can be outsourced have increased over time.

(Though, in my humble opinion, firms that outsource their telephone answering to overseas call centres where people you can't understand repeat scripted lines regardless of the context, and have little power to fix your problem because the firm back in Oz doesn't really trust them, will one day reap the customer revenge they so richly deserve.)

It should involve cost savings to outsourcing firms because specialist providers are able to achieve greater economies of scale and pass some of the benefits on to their customers.

So outsourcing is an example of one of the key building blocks of our modern prosperity: ever-greater specialisation and exchange, leading to ever-greater productivity. (This ought to be true when profit-driven businesses do it; it's not always true when governments do it badly or with ulterior motives.)

But outsourcing doesn't explain all the growth in business services. Some of those services are totally new.

And Heath says there's evidence that the nature of the work being done in the business services sector is generally changing faster than in other sectors. "This all suggest that business services are at the centre of how technological change is transforming the Australian economy," she says.

Traditional business services, such as accounting and legal, have been joined by management consulting, internet providers and computer system design.

The growth in outsourcing of business services, and the increasing integration of business services with other sectors of the economy, fit with evidence that "supply chains" are getting longer. That is, there's an increasing number of stages through which goods and services pass.

Not surprisingly, the goods production sector is the most fragmented – has the longest supply chain – because it uses the most "intermediate" inputs to produce its final products.

Research suggests that the reorganisation of production associated with the lengthening of supply chains has led to a shift towards more high-skilled labour, Heath says.

There's growing evidence that advances in computer technology have helped drive a shift from routine to non-routine jobs, creating new jobs as well as making others obsolete.

The share of people employed in the business services sector has almost doubled over the past 50 years, to be about 20 per cent of the workforce. Most of this growth has been in "non-routine cognitive" jobs, as you'd expect when computerisation is an important driver.

(Similar forces are working in the household services sector – all those extra doctors, teachers and academics – although it has also seen a significant increase in demand for non-routine manual jobs.)

If you look more directly at the types of skills and abilities required in the business services sector you see that, since the mid-1990s, there's been a shift towards occupations requiring higher-level cognitive skills such as systems analysis, persuasion, originality, written expression, complex problem solving and critical thinking.

Heath concludes that the business services sector "has played a key role in the way the economy has responded to technological progress.

"In the process, business services have become more important, more specialised and more integrated with other sectors. There is some evidence that this has been associated with higher productivity growth."

Figures from the labour market "also support the idea that business services industries are at the heart of how technological change is transforming the structure of the economy".

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How the threat from robots was exaggerated

You'd have to have been hiding under a rock not to know that 40 per cent of jobs in Australia – about 5 million of them – are likely to be automated in the next 10 to 15 years.

Ask a young person what they know about the future of work and that's it. Which may help explain why so many of them seem angry and depressed about the economic future they're inheriting.

This information is widely known because it's the key finding of a major report, Australia's future workforce?, published in 2015 by the Committee for Economic Development of Australia, a well-regarded business think tank, derived from modelling it commissioned.

It's the sort of proposition you see many references to on social media, particularly because it chimes with a similar widely known prediction made in 2013 that 47 per cent of American jobs could be automated in the next 20 years.

Neither figure is a fact, of course, just a prediction about the distant future based on "modelling".

Why is it that if a prediction is big enough and gloomy enough, everyone keeps repeating it and no one thinks to question it? Why do we accept such frightening claims without asking for further particulars?

Why doesn't anyone ask the obvious question: how – would – they – know?

Because the prediction is based on "modelling"? That if it came out of a computer, it must be true?

Because the modelling for Australia reached similar results to the modelling for America? Sorry, it's actually the same model applied to different figures for each country.

Fortunately, not everyone is as easily convinced that the sky is falling. Two economists from Melbourne University, Professor Jeff Borland and Dr Michael Coelli, have taken a very hard look at the modelling undertaken for the committee by Professor Hugh Durrant-Whyte, of Sydney University, and other engineers at National Information and Communication Technology Australia.

Durrant-Whyte's modelling simply applies to Australia modelling of US occupations by Carl Frey, an economic historian, and Dr Michael Osborne, an engineer, of the Oxford Martin School for a sustainable future at Oxford University.

Frey and Osborne provided some colleagues with descriptions of 70 US occupations and asked them to judge whether they were "automatable" or not. This sample was then analysed and used to classify all 702 US occupations according to their likelihood of being automated.

Any occupation with a predicted probability of automation of more than 70 per cent was classed as being at "high risk" of automation.

Borland and Coelli make some obvious criticisms of this methodology. First, the colleagues found that 37 of the sample of 70 occupations were at risk of automation. Should these subjective assessments prove wrong, the whole exercise is wrong.

For instance, the colleagues judged that surveyors, accountants, tax agents and marketing specialists were automatable occupations, whereas Australian employment in these has grown strongly in the past five years.

Frey and Osborne say the need for dexterous fingers is an impediment to automation, but their method predicts there is an automation probability of 98 per cent for watch repairers.

Second, Frey and Osborne's modelling makes the extreme assumption that if an occupation is automated then all jobs in that occupation are destroyed. The advent of driverless vehicles, for instance, is assumed to eliminate all taxi drivers and chauffeurs, truck drivers, couriers and more.

Third, their modelling assumes that if it's technically feasible to automate a job it will be, without any need for employers to decide it would be profitable to do so. Similarly, it assumes there will be no shortage of the skilled workers needed to set up and use the automated technology.

More broadly, their modelling involves no attempt to take account of the jobs created, directly and indirectly, by the process of automation.

No one gets a job selling, installing or servicing all the new robots. Competition between the newly robotised firms doesn't oblige them to lower their prices, meaning their customers don't have more to spend – and hence create jobs – in other parts of the economy.

All that happens, apparently, is that employment collapses and profits soar. But if it happens like that it will be the first time in 200 years of mechanisation and 40 years of computerisation.

In 2016, the Organisation for Economic Co-operation and Development commissioned Professor Melanie Arntz and colleagues at the Centre for European Economic Research to offer a second opinion on Frey and Osborne's modelling.

Arntz and co noted that occupations categorised as at high risk of automation often still contain a substantial share of tasks that are hard to automate.

So they made one big change: rather than assuming whole occupations are automated, they assumed that particular tasks would be automated, meaning employment in particular occupations would fall, but not be eliminated.

They found that, on average across 21 OECD countries, the proportion of jobs that are automatable is not 40 per cent, but 9 per cent.

Those countries didn't include Oz, so Borland and Coelli did the figuring – "modelling" if you find that word more impressive – and found that "around 9 per cent of Australian workers are at high risk of their jobs being automated".

Why are we so prone to believing those whose claims are the most outlandish?

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All the things that aren't causing weak wage growth

There's just one problem to remember before we work ourselves into a complete tizz over the War on Wages, convincing ourselves globalisation and digital disruption mean we'll never get a steady job or a decent pay rise again.

It's this: so far we've heard a lot of suspiciously confident predictions about the way robots and digitisation are about to destroy millions of jobs, a lot of anecdotes about law-breaking employers, a lot of scary stories about "the gig economy" and "portfolio jobs", a lot of adults assuring impressionable school children they'll have 10, or is it 17, different jobs in their working lives, a lot of propagandising by the unions about the rise of "precarious employment" and a lot of speculation about how all this somehow explains why wages growth is the slowest it's been since the early 1990s.

Know what we haven't got a lot of? Hard evidence that any of all that has actually started happening to any significant extent.

This is not to say some version of all that won't happen at some time in the future. I can't say it won't since I don't know that the future holds, unlike all the self-proclaimed experts with their precise predictions.

(Next time you hear someone telling you exactly how many jobs robots will have destroyed by 2020, or how many jobs or occupations you'll have in the next 40 years, ask yourself this question: How – would – they – know?)

But if there's no evidence this frightening future has got going yet, there's no way it can explain why wage growth has been so weak for the past three or four years.

For once, let's take a close look at what we actually know has been happening.

It is true that, as we saw in this column two weeks ago, the structure of occupations in the workforce is changing. Research by Dr Alexandra Heath, of the Reserve Bank, shows the share of routine jobs has fallen by 14 percentage points, while the share of non-routine jobs has risen by 14 points.

Similarly, the share of manual jobs has fallen by 5 percentage points, while the share of cognitive jobs has risen to the same extent.

But this is a long-term trend. These figures are for the change over the 30 years to 2016, and there's no sign of the trend accelerating over recent years.

A lot of detailed – and reassuring – research on the official statistics has been done by one of our leading labour-market economists, Professor Jeff Borland, of the University of Melbourne, and reported on his website, Labour Market Snapshots.

For one thing, Borland's been searching for evidence that our jobs are being taken by robots – and failing to find it. He breaks the issue into two parts.

First, has computerisation reduced the total amount of work needing to be done by humans, as many people assume?

No. The total amount of work available per head of population has bounced around with the ups and downs of the business cycle but, overall, has shown no downward trend. The latest figures show, if anything, a bit more hours of work per person than there were in the mid-1960s.

Second, consistent with Heath's research, Borland finds evidence that the progressive introduction of computers, which began in the early 1990s, is probably changing the types of jobs being done by workers.

But he, too, finds that the pace of change in the composition of employment "is no quicker today than in the period before computers".

"So while computers may be having some impact on the Australian workplace, most claims about their impact are vastly overstated," Borland concludes.

Next, Borland shines his statistical spotlight on all the claims about work becoming more insecure or "precarious".

You don't have a proper, full-time permanent job. You get a bit of work here and a bit there. If you do have a job, it never lasts long.

The Australian Bureau of Statistics has long published figures for job "tenure" – how long people have been with their current employer.

If all the talk of growing instability was a genuine trend – as opposed to the experience of a relatively small number of individuals – you ought to be able to see it in the job tenure figures.

But you can't. The reverse, in fact. Borland finds that, from the early 1980s to the present, the proportion of workers who've been in their job for 10 years or more has been steadily increasing. This is greatest for women, for whom it's gone from 12 per cent to 25 per cent.

At the same time, the proportion of all workers in their job for less than a year has been decreasing.

Next, how insecure do workers feel? When the bureau asks employees whether they expect to be with their present employer for the next 12 months, the proportion of men who don't has been steady at about 9 per cent between May 2001 and May this year.

Over the same period, the proportion for women has fallen steadily from 11 per cent to 9.5 per cent.

From all the talk, you'd expect the proportion of employees working for labour hire companies and temporary agencies to be rising strongly.

It ain't. Actually, between 2001 and 2015 it's fallen from a tiny 3.1 per cent to a tinier 2.2 per cent.

And though it's true the proportion of jobs that are part-time is continuing to rise, over the 10 years to 2016 it rose at the slowest rate for any decade since the mid-1960s.

Of course, none of this is to deny that wages growth in Australia has been surprisingly weak for several years, as it has been in other developed economies.

But in our guessing game about what might be causing that weakness, let's not get too fanciful.

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Occupations are changing as the jobs total grows

Have you heard that most of the jobs being created in the economy these days are part-time? No? Good. Yes, you have? Sorry, your info's out of date.

It was true last year, but not this year. As this week's figures for the labour force from the Australian Bureau of Statistics showed, of the 176,000 additional jobs created in the first six months of this year, 93 per cent were full-time.

That, BTW, was an exceptionally rapid annualised rate of growth of 2.9 per cent. Doesn't sound like the economy's dead yet.

Admittedly, it was a very different story last year. The calendar year saw growth in total employment of just 100,000 jobs – a very weak 0.8 per cent – of which 135 per cent were part-time.

Huh? Think about it: there must have been a fall of 35,000 in the number of full-time jobs. And there was.

It was a particularly bad year, and with all the happy scare stories about the rise of the "gig economy" it was enough to convince a lot of education-leavers that their chances of ever getting a decent, full-time job were low.

Moral: don't count your nightmares before they've hatched.

Dr David Gruen, a deputy secretary in the Department of Prime Minister and Cabinet, noted in a speech this week that "the displacement of jobs by technology ... is one of the developments that is leading to a sense of unease among many in the community."

People may fear that their own job may be taken over by a machine, or worry there'll be insufficient meaningful jobs for their kids.

Maybe, maybe not. Before we leap to cataclysmic conclusions, Gruen reminds us that fears of technological advances rendering many jobs obsolete is an idea with a long pedigree – back to the Luddites going around smashing machines in the early 1800s.

In the 200 years since then, employers have never ceased seeking out the newest and best labour-saving technology, but so far this has failed to cause mass unemployment.

Coming to today, Gruen says there's little sign of a quickening in the rate of change in occupations that might signal big, new technology-driven changes in the labour market. Nor is there any sign of the rapid improvement in the productivity of labour that you'd expect to see if there was widespread replacement of workers with machines.

But what's been clear for some time, he says, is that jobs across the economy are not equally susceptible to being displaced by technology and automation.

"Routine or predictable tasks are more susceptible to displacement than non-routine tasks. This observation applies to both manual and cognitive tasks – whether manual or cognitive, routine tasks are easier to automate than non-routine ones."

Dr Alex Heath, of the Reserve Bank, has used the stats bureau's figures on workers by occupation to see how these distinctions have affected our workforce over the 30 years to 2016.

She finds no sign of a recent quickening in the pace of change in occupations, but she certainly does find such change over the 30 years since 1986.

The proportion of routine manual jobs (such as labourers and machinery operators) in total employment has fallen from 40 per cent to 30 per cent, while the proportion of routine cognitive jobs (such as salespeople and clerical workers) has fallen from 27 per cent to 24 per cent.

In contrast, the number of non-routine manual jobs (such as nurses and hospitality workers) has risen from 6 per cent to 11 per cent, with non-routine cognitive jobs (such as management and professional occupations) rising from 27 per cent to 36 per cent.

This means routine jobs' total share of the workforce fell by 14 percentage points, whereas non-routine jobs' share rose by 14 points.

The share of routine and non-routine manual jobs fell by 5 percentage points, meaning the share of all cognitive jobs rose by the same.

(If you're wondering, over that 30-year period, total employment grew by almost 5 million jobs – an increase of more than 70 per cent – with the extra jobs spread about equally between part-time and full-time.)

Gruen says we should expect these trends to continue. But he makes a point first made by American economist Daron Acemoglu, that there's not one big trend going on in the workplace, but two.

The one that gets all the headlines is automation – jobs being taken over by machines. But the trend that gets much less notice – thus contributing to the public's excessive anxiety – is the continuous creation of new, useful, complex (that is, non-routine) jobs.

We've seen that, for at least the past 30 years in Oz, both trends have been at work. One displacing jobs, the other creating them. And so far, their effect on the composition of jobs has been roughly equal, and hasn't prevented continued growth in the total number of jobs.

Of course, it remains possible that the digital revolution will cause an acceleration in trend of displacement of jobs by machines, thus overwhelming the creation of new, complex jobs.

But another American economist, David Autor, has explained that certain tasks are particularly hard to automate.

These are tasks "that people understand tacitly and accomplish effortlessly, but for which neither computer programmers nor anyone else can enunciate the explicit 'rules' or procedures ... [The] tasks that have proved most vexing to automate are those demanding flexibility, judgment and common sense – skills that we understand only tacitly".

Of course, it's possible that "machine learning" may overcome these problems, but there's another constraint on machines taking all our jobs away to remember: the need for interpersonal skills in a growing number of jobs, plus our human preference for being served or helped by humans, not robots.

Don't discount the human factor.

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Have a touchy-feely holiday break from the economic grind

I hope your "face time" with family and friends over the holiday break wasn't done using a mobile phone.

A phone call may be better than nothing, but it turns out that regular, in-the-flesh, face-to-face communication reduces the risk of depression in older adults.

That's according to research by Alan Teo, a psychiatrist at the Oregon Health and Sciences University, and others.

"Meeting friends and family face-to-face is strong preventive medicine for depression. Think of it like taking your vitamins, and make sure you get a regular dose of it," Teo advised.

Thanks to my own painstaking research (I googled it), I can tell you we know from previous studies that having social support and staying connected with people is good for your physical and mental health. It even helps you live longer.

Teo and his mates examined the results of a survey of about 11,000 people aged 50 or more between 2004 and 2010.

They found a correlation between the types of interactions people had with others and their likelihood of showing symptoms of depression two years later.

"We found that all forms of socialisation aren't equal. Phone calls and digital communication with friends or family members do not have the same power as face-to-face social interactions in helping to stave off depression," Teo said.

But what, pray tell, has this to do with the economics I'm paid to write about?

Well, in the silly season it doesn't have to. But as it happens, it does. One of the most important discoveries of economists in the past decade or so is the almost magical economic properties of face-to-face contact.

For this new knowledge we're indebted mainly to the guru of urban economics, professor Edward Glaeser, of Harvard, as set out in his important 2011 book, Triumph of the City.

Economic geographers have long understood the significance of "economies of agglomeration". We crowd into ever-bigger cities because close proximity between a business, its workers, its customers, its suppliers and even its competitors does wonders to improve productivity.

Unfortunately, what's good for our material standard of living isn't necessarily good for the soul.

Glaeser's contribution was to realise that, in the era of the knowledge economy, firms want to crowd together in the very centre of the biggest cities – regardless of sky-high rents – because knowledge spreads most effectively though face-to-face contact between the smartest people.

Here in Oz, pioneering empirical work by Jane-Frances Kelly of the Grattan Institute, has shown how more and more of our gross domestic product is being generated in the CBDs of our four biggest cities.

While she was at it, she publicised Reserve Bank research showing convincingly that, in every capital city, house prices are rising fastest in those suburbs closest to centre and slowest in those suburbs furthest out.

So if you think the golden rule of real estate is position, position, position, you're behind the curve. In big cities these days its proximity, proximity proximity. And that gets back to the economic value of face-to-face contact.

Unfortunately, however, what's good for our material standard of living isn't necessarily good for the soul.

When we're crammed in together in trains, lifts or waiting rooms, we know almost instinctively to avoid invading people's "personal space", avoid conversation and even eye contact.

But research by Nicholas Epley, of the University of Chicago's Booth School of Business, and Juliana Schroeder, of the University of California, Berkeley's Haas School of Business, shows our instincts are wrong.

In a series of experiments, those commuters who were instructed to strike up conversation with a stranger reported having the most positive experience, compared with those instructed to sit in silence or behave as they usually would.

When it comes to the advent of the knowledge economy, the information revolution and digital disruption, there are two errors we can make: underestimating the extent to which it's already changing the way the economy works (see above), and overestimating the extent to which it's changing the way humans work – and are happiest working.

You can be sure the world's model-bound economists will make – are making – the first error. And since their model copes with human nature only by assumption, they won't even be conscious of the second.

For the rest of us, however, the thing is to remember new technology raises three distinct questions: first, what new tricks is it actually capable of doing for us, second, do we really want it to do that trick for us and, finally, assuming we do, what will we eventually feel about the wisdom of that choice? See intro.

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