How weak competition forces up food prices along the supply chain

By Millie Muroi, Economics Writer

The first most of us see of our groceries is the end product – after all the planting, growing, shipping and packaging has happened. So when we’re hit with a big bill at the checkout, it’s easy to blame supermarkets for the expensive beef, carrot or turnip that ends up on our forks.

We know Coles and Woolies have received raps on their knuckles for their behaviour recently, including alleged false discounts to lure in customers. But it’s not just customers or the competition watchdog dishing out their disdain. And it’s far from just the supermarkets that have pointed questions to answer.

Dr Andrew Leigh, former economics professor and now assistant minister for competition and treasury, has had a deep-dive into the topic. It turns out the list of possible culprits when it comes to the costly lack of competition is longer than just the supermarkets – and it’s our farmers bearing the brunt of it.

Basically, while our household budgets are getting pushed by pricier produce, farmers are getting squeezed. They’re not just facing higher prices when it comes to key ingredients such as fertiliser and machinery, but also higher costs and unfair terms once their produce is ready to be processed, shipped off and sold.

How do we know this? There are a few key signs.

Concentration is one. “Industries with plenty of competitors tend to deliver better prices, more choices and stronger productivity growth,” Leigh said in a speech this week.

The fewer players there are in a market, the less competitive it tends to be. Less competition usually means lower wages, less choice for consumers and less innovation, with dominant businesses able to charge higher prices than they might otherwise be able to, since they don’t have to worry so much about being undercut or fighting to win over customers with bargains.

Analysis by economic research institute e61 last year found all Australian industries were more concentrated than those in the US, especially in mining, finance and utilities, in which the top four firms have more than 60 per cent market share.

Generally, we see a market as “concentrated” if the biggest four firms control one-third or more of it. In 2016, Leigh and his colleague Adam Triggs found more than half of industries in the Australian economy were concentrated markets. Since then, concentration in Australia has become worse.

Farming, though, is surprisingly competitive – at least for most commodities. So why are we still seeing higher prices at the check-out?

Part of it is thanks to supply chain issues, especially during the pandemic, which meant we couldn’t get as many materials and produce from overseas, reducing supply and driving up prices. Then there’s always the temperamental weather, which can dramatically cut harvests.

But it’s a growing domestic issue which is causing headaches for farmers.

Before anything even springs out of the ground or fattens up in a paddock, farmers are dealt a tricky hand. The largest four fertiliser companies, for example, control nearly two-thirds of the market and the top four hardware suppliers control roughly half of the market, according to Leigh’s analysis of data from IBIS World.

From high-tech harvesters to tractors and seeding equipment, machinery is a big cost paid by farmers. That means when there’s a lack of options and farmers aren’t able to shop around as much, their hip-pockets – and ours – are worse off.

If you think that lack of choice is bad, Leigh says it’s even worse when farmers go to repair and service their equipment.

Farming machinery makers have a lot of power – even more than carmakers – thanks to warranties forcing farmers to go to a specific dealer for servicing, and tech restrictions holding farmers back from accessing the parts, manuals and diagnostic software they need to make repairs themselves.

Then there are seeds. From these little things, big costs can grow. One paper from the US Department of Agriculture’s Economic Research Service in 2023 found the seed sector had become more concentrated. Between 1990 and 2020, the average seed price soared 270 per cent, and 463 per cent for genetically modified types.

The huge price increase partly accounts for the fact seeds have become better – for example, GMO varieties which have made farming more productive. But as Leigh points out, “there are not many other industries where the price of a key input has grown five-fold in 30 years.”

But that’s not all. Once the cattle has been raised or the blueberries grown, farmers have little choice or bargaining power when it comes to processing, transporting and selling produce.

When it comes to slaughtering cattle, the top five Australian processors accounted for about 57 per cent of the market in 2017, meaning cattle farmers had little choice in the prices and options they accepted. For fruit and vegetable processing, the biggest four companies hold about one-third of the market.

When the produce is ready to be sent out, farmers have even less choice. Two companies – ANL and Maersk – account for 85 per cent of the shipping freight industry in Australia, and four companies control 64 per cent of the market if farmers want to send things via rail.

Farmers, especially those who produce at a smaller scale, often become the “meat in a market concentration sandwich”. 

Farmers, especially those who produce at a smaller scale, often become the “meat in a market concentration sandwich”. Credit:Louise Kennerley

As Leigh points out, the risk of spoilage further limits viable options available to farmers.

Then there’s the supermarket sector, where Coles and Woolies control about two-thirds of the market – a higher share than every OECD country except New Zealand and Norway.

Concentration at all these points means farmers are at greater risk of facing power imbalances, which show up in things such as unfair contracts, where terms are obviously lopsided. Bigger players in these concentrated industries can generally muscle in with terms which are worse for farmers, such as restricting them from raising issues or selling things at unfairly cheap prices.

All of this not only puts pressure on farmers, but can reduce their ability and incentive to invest in improving their product and the way they do things.

As Leigh puts it, farmers, especially those who produce at a smaller scale, often become the “meat in a market concentration sandwich”.

There’s no easy fix in all this, but preventing too many mergers, where companies combine and gobble each other up to become even bigger, is key to promoting competition.

Of course, bigger companies are not always worse. Their scale can allow them to do things more cheaply. But too little competition can lead to pumped-up prices which flow all the way through from more expensive seeds and fertiliser to the prices charged by supermarkets.

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One reason for our inflation problem: weak merger law

Nothing excites the business section of this august organ more than news of another merger between two public companies. “Merger” is the polite word for it; usually the more accurate word is “takeover”.

So, is the dominant firm offering a good price for the firm being acquired? And should the shareholders in the dominant firm be pleased or worried about the deal? Will it benefit them, or just the company executives who organised it? A bigger company equals higher salaries and bonuses, no?

The financial press tends to regard takeovers as all good fun. Part of the thrills and spills or living and investing in a capitalist economy. But such mergers change the shape of the economy that provides us with our living. Do they make the economy better or worse?

According to the Albanese government’s Assistant Minister for Competition Dr Andrew Leigh, a former economics professor, some mergers improve the economy, whereas some worsen it.

As he explained in a speech this week, mergers are part of the market mechanism that allows financial capital to go where it’s most needed and will do most good to the consumers, workers and savers who make up an economy.

Most mergers are a healthy way for firms to achieve economies of scale and scope, and to access new resources, technology and expertise, Leigh says.

But mergers can do serious economic harm when firms are motivated by a desire to squeeze competitors out of the market and so capture a larger share of the particular market.

So “the small number of proposed mergers that raise competition concerns warrant close scrutiny” to see whether they should be allowed to proceed, he says.

The point is that, according to economic theory, the main thing ensuring ordinary people benefit from living and working in a capitalist economy is strong competition between the profit-making businesses providing our goods and services, which limits their ability to charge excessive prices and make excessive profits.

Competition obliges businesses to pass on to customers much of the savings they make from using improved technology to increase their economies of scale, while preserving the quality of service provided to their customers.

Similarly, competition between a reasonable number of alternative employers is needed to ensure their workers are fairly paid.

This is why laws controlling mergers are one of the main pillars of policy to keep competition between firms effective, along with prohibitions on the forming of cartels and other collusion between supposedly rival firms, and the misuse of “market power” – the power to keep prices above the competitive level.

Leigh says merger law is unique among those pillars because it’s the preventative medicine of competition law. While the other pillars deal with anticompetitive practices that are already being used, it deals with the likely effect of future anticompetitive actions the merger could make possible.

Fine. Trouble is, reformers have been batting for about 50 years to get effective restrictions on the ability of Australian companies to proceed with mergers designed to limit competition and enjoy excessive pricing power.

Leigh notes that a less-competitive market can add to the cost of doing business, and reduce the incentives and opportunities to invest, grow and innovate. For consumers, a less competitive market leads to higher prices, less choice, and lower growth in wages.

Big companies have resisted previous reforms – sometimes as represented by the (big) Business Council – sometimes, when Labor’s been in power, by big unions in bed with their big employers.

But now the Albanese government is making another attempt to get decent control over mergers that are expected to worsen competition.

And not before time. The challenge in Australia is to name more than a handful of industries not dominated by a few big firms.

Academic research Leigh has been associated with has shown that monopoly power worsens inequality by transferring resources from consumers to shareholders. He found evidence that market concentration – a few firms with a big share of the market – had worsened.

As well, profit margins had worsened and “monopsony hiring power” – few employers in an industry – was a problem in many industries.

After the Albanese government’s election in 2022, Treasurer Jim Chalmers and Leigh set up a Competition Taskforce within the Treasury focused on advising the government on actionable reforms to create a more dynamic and productive economy.

The taskforce’s top priority was to reform our merger laws. Consultations with industries said our piecemeal merger process was unfit for a modern economy and lagged best practice in other countries.

We were one of only three developed countries with a system of notifying proposed mergers that was merely voluntary. The Australian Competition and Consumer Commission (ACCC) complained about inadequate notification of proposed mergers, insufficient public information about the mergers, “a reactive, adversarial approach from some businesses” and limited opportunity to present evidence of likely economic harm arising from a particular merger.

In April this year, Chalmers and Leigh announced what they said were “the most significant reforms to merger rules in almost 50 years”. They would reduce three ways of reviewing merger proposals to a single, mandatory but streamlined path to approval, run by the ACCC.

For merger proposals above a monetary threshold or market-concentration threshold, this means those which would create, strengthen or entrench substantial market power will be identified and stopped. But those consistent with our national economic interest will be fast-tracked.

Challenges to the commission’s decisions will be the responsibility of an Australian Competition Tribunal, made up of a Federal Court judge, an economist and a business leader.

This should make it easier for the majority of mergers to be approved quickly, so the commission can focus on the minority that are a worry on competition grounds.

It’s the great number of our industries dominated by just a few firms that makes us especially susceptible to the inflation surge we’re still struggling to get back under control.

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You can (partly) blame cost-of-living crisis on greedy businesses

The nation’s economists and economist-run authorities such as the Reserve Bank have not covered themselves in glory in the present inflationary episode. They’ve shown a lack of intellectual rigor, an unwillingness to re-examine their long-held views, and a lack of compassion for the many ordinary families who, in the Reserve’s zeal to fix inflation the blunt way, have been squeezed till their pips squeak.

There’s nothing new about surges of inflation. Often in the past they’ve been caused by excessive wage growth, where economists have been free with their condemnation of greedy workers. But this one came at a time when wage growth was weak and barely keeping up with prices.

What economists in other countries wondered was whether, this time, excessive growth in profits might be part of the story. Separate research by the Organisation for Economic Co-operation and Development, the International Monetary Fund, the Bank for International Settlements, the European Commission, the European Central Bank, the US Federal Reserve and the Bank of England suggested there was some truth to the idea.

But if the Reserve or our Treasury shared that curiosity, there’s been little sign of it. Rather, when the Australia Institute replicated the European Central Bank’s methodology with Australian data and found profit growth did help explain our inflation rate, the Reserve sought to refute it with a dodgy graph, while Treasury dismissed it as “misleading” and “flawed”.

One leading economist who has been on the ball, however, is Professor Allan Fels, a former chair of the Australian Competition and Consumer Commission, whose experience of competition and pricing issues goes back to the year before I became a journalist.

In his report this week on price gouging and unfair pricing practices, commissioned by the Australian Council of Trade Unions, he concluded that “business pricing has added significantly to inflation in recent times”.

Fels says his report is “fully independent” of the ACTU, which did not try to influence him. Considering his authority in this area, I have no trouble believing it.

“ ‘Profit push’ or ‘sellers’ inflation’ has occurred against a background of high corporate concentration and is reflected in the surge of corporate profits and the rise in the profit share of gross domestic product,” he finds.

“Claims that the rise in profit share in Australia is explained by mining do not hold up. The profit share excluding mining has risen and [in any case,] energy and other prices associated with mining have been a very significant contributor to Australian inflation,” he says.

Fels says there has been much discussion about inflation and its causes – including monetary policy and fiscal policy, international factors, wages, supply chain disruption and war, but “hardly any discussion that looks at actual prices charged to consumers, the processes by which they are set, the profit margins and their possible contribution to inflation”.

His underlying message is that there are too many industries in Australia which are dominated by just a few huge companies – too many “oligopolies” – which limits competition and gives those companies the ability to influence the prices they can charge.

“Not only are many consumers overcharged continuously, but ‘profit push’ pricing has added significantly to inflation in recent times,” he says, nominating specifically supermarkets, banks, airlines and providers of electricity.

Fels says, “some of Australia’s largest businesses, often [those selling such necessities that customers aren’t much deterred by price rises], are maintaining or increasing margins in response to the global inflationary episode”.

He identifies eight “exploitative business pricing practices” – tricks – that enable the extraction of extra dollars from consumers in a way that wouldn’t be possible in markets that were competitive, properly informed, and that enabled overcharged customers to switch easily from one business to another.

First, “loyalty taxes” set initial prices low and then sharply increase them in later years when customers can’t easily detect, question, or renegotiate them, and where the “transaction costs” of changing to another firm are high. This trick can be found in banking, insurance, electricity and gas.

Second, “loyalty schemes” are often low-cost means of retaining and exploiting consumers by providing them with low-value rewards of dubious benefit.

Third, “drip pricing” occurs when firms advertise only part of a product’s price and reveal other costs as the customer continues through the purchasing process. This trick is spreading in relation to airlines, accommodation, entertainment, pre-paid phone charges, credit cards and other things.

Fourth, “excuse-flation” occurs when general inflation provides camouflage for businesses to raise prices without justification. This has been more prevalent recently. As the inflation rate starts falling, excessive inflation expectations and further cost increases can be built in to prices.

Fifth, “confusion pricing” involves confusing customers with myriad complex price structures and plans, making it difficult to compare prices and so dulling price competition. This is occurring increasingly in mobile phone plans and financial or maintenance service contracts.

Sixth, asymmetric or “rockets and feathers” pricing is a big deal now the rate of inflation is falling. When a firm’s costs rise, prices go up like a rocket; when its costs fall, prices drift down slowly like a feather.

Fels says this trick can be very profitable for businesses. The banks have long been guilty of this stunt, yet I can’t remember a Reserve Bank governor ever calling it out.

Seventh, “algorithmic pricing” is where firms use algorithms to change prices automatically in response to what their competitors are doing. Fels wonders whether this reduces price competition and is analogous to the way now-illegal cartel pricing worked.

Finally, “price discrimination” involves charging different customers different prices for the same product, according to what the firm deduces a particular customer is “willing to pay”. The less competition firms face, the easier it is for them to play this game.

That so few economists and econocrats have been willing to think about these issues doesn’t speak well of their profession’s integrity. If they won’t speak out about businesses’ failings, why should we trust what they do tell us?

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Are the supermarket twins too keen to raise their prices?

The cost-of-living crisis has left many convinced the two big supermarket chains – known to some as Colesworth – have been “price gouging” – raising their prices without justification. “Gouging” is a rude, pejorative phrase that would never cross an economist’s lips (nor mine), but economic theory does say that, when an industry is dominated by just a few huge companies, this will give them the power to manipulate prices to their own advantage.

But anecdotes and even economic theory are one thing, hard evidence is another. And knowing what to do about it is a third. So it’s good that last Friday, Treasurer Jim Chalmers launched a full inquiry into supermarket prices by the Australian Competition and Consumer Commission. Chalmers said this was “about making our supermarkets as competitive as they can be so Australians get the best prices possible”.

The inquiry, which will take a year, will include an examination of online shopping, the effects of loyalty programs and how advances in technology are affecting competition.

The competition watchdog’s chair, Gina Cass-Gottlieb, said the commission will use its compulsory information-gathering powers to collect financial details from the supermarket giants.

The government has also commissioned a former Labor minister and economist, Dr Craig Emerson, to review the effectiveness of the “food and grocery code of conduct”, introduced in 2015 to stop the big supermarkets from using their buying power to extract unreasonably low prices from their suppliers, particularly farmers.

The code is voluntary and has no way of punishing bad behaviour, so hasn’t worked well. It’s drawn few complaints from suppliers, probably because they’re afraid of retaliation by Colesworth. Only if it’s made compulsory and given teeth is it likely to improve the farmers’ lot.

Our groceries market is one of the most concentrated in the developed world. Woolworths has 37 per cent of the market and Coles has 28 per cent, leaving Aldi with 10 per cent and Metcash (wholesaler to IGA stores) with 7 per cent. So our two giants’ combined share of 65 per cent compares with Britain’s top two’s share of 43 per cent. In the United States, the four largest chains make up just 34 per cent of the market.

While we wait for the competition watchdog’s report, what do we know about the chains’ behaviour?

The report of an unofficial inquiry into price gouging and unfair pricing practices, commissioned by the ACTU from a former competition commission chair, Professor Allan Fels, will be published on Wednesday.

But we know from a letter Fels sent to Chalmers last month what it will say about supermarkets. Fels said the inquiry had been inundated with concerns from experts and regular Australians alike on the prices set by the chains.

Fels found that neither Coles nor Woolworths suffered declines in profit during the pandemic because their services had been deemed essential. Since then, however, both have increased their profit margins, thanks to weak competition and their ability to delay passing on any cost reductions.

Fels noted that high prices, including co-ordinated price increases between the two, aren’t actually prohibited by competition law, except where there is unlawful communication or agreement between the firms. (Which, of course, doesn’t prohibit tacit collusion.)

Duopolies have a mutual incentive not to decrease prices where possible, Fels said, particularly on those goods whose prices are closely watched by customers.

“There has not been a price war between the major supermarkets in some years,” he said. This contrasts with the British experience, where Tesco and Sainsbury’s entered an aggressive price war with Aldi.

Here, the entrance of Aldi has been helped by outlawing the ability of the big two to do deals with shopping centre owners preventing rival supermarkets from setting up. Fels said he shared the watchdog’s concern about the big two’s ability to limit competition by engaging in “land banking” – hoarding supermarket sites, so rival companies can’t get a foothold.

Fels worries also about the giants playing “rockets and feathers”. When their costs rise, their prices go up like a rocket, but when their costs fall, their prices drift slowly down like a feather.

Fels found that, as prices have increased, consumers had noticed again and again that once-normal prices were being advertised back to shoppers as “special”.

He quoted one submission to his inquiry asserting that, until August 2022, Coles and Woolies sold a 200-gram jar of Timms coffee for $8. Then Coles increased the shelf price to $12.70 before, a couple of weeks later, reducing the price to $10.70 with a tag saying “was $12.70 per bottle, now ‘down, down!’.”

Another submission asserted that Devondale cheese had gone from $5 to $10 in recent months, but had then been on “special” for $10.

Cass-Gottlieb has said the commission was “carefully looking” at claims that some discounts amounted to deceptive conduct. She also said it was concerned by “was, now pricing”, which might be outlawed.

If all the pain of the cost-of-living crisis at last prompts this government to get tough with the game-playing supermarkets, it will be some consolation.

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The next thing on Albanese's to-do list: fix competition

In a capitalist economy, every capitalist professes to believe in stiff competition. In truth, it’s their biggest hate. Why? Because it limits their ability to put up prices and makes them work harder for their money.

Just this week, big business has been saying that, if only we could get proper tax reform – by which they mean lower taxes on companies and the highly paid – we’d get more productivity and more innovation.

In truth, what’s far more likely to improve innovation and productivity is stiffer competition, particularly in those many industries dominated by just a few giant corporations.

The federal government doesn’t have a minister for competition, but it does have an assistant minister: Dr Andrew Leigh, a former economics professor.

Last year, the Albanese government announced a rolling two-year review of competition and set up a taskforce within Treasury. It’s supported by an expert advisory panel with some big names: Dr Kerry Schott as chair, David Gonski, the former boss of the Australian Competition and Consumer Commission, Rod Sims, and the new boss of the Productivity Commission, Danielle Wood.

This week Leigh gave us an update on what the taskforce had been doing and discovering. But he started with a locker room pep talk on why competition is the key to making capitalism – or “the market system” as economists prefer to call it – benefit the customers more than the capitalists.

“Competition provides a check on unbridled profit-seeking by business. In a competitive market, innovators can bring new products and services to market, without fear of being shut down by entrenched monopolists,” he says.

Competition limits unearned privilege and seeks to treat everyone fairly. Competition guides labour and capital to their most valuable uses and combinations, driving the productivity improvement that underpins sustainable wages growth.

“For workers, genuine competition between businesses provides greater opportunities to switch jobs, allowing workers to make the most of their skills and secure better pay and conditions.”

“For consumers, competition provides more choices, allowing people to shop around and find better value products and services. Indeed, the most obvious benefit of competition is in delivering cheaper prices. There is no better tool than competition policy for keeping real prices down.”

And, Leigh adds, competition is also crucial if Australia is to make the most of the big shifts involved in digitisation, growth in the care economy and the transition to net zero carbon emissions.

But Leigh warns of “worrying signs the intensity of competition has weakened over recent decades, with evidence of increased market concentration and [profit margins] in several industries.”

“Other countries find themselves at similar crossroads and many are – like us – reviewing their competition policy settings,” he says.

Our taskforce is taking a fresh approach to competition policy: digging out and analysing large sets of data to understand what the problems are and help craft solutions to them.

The digital revolution is producing masses of “microdata” on what businesses are doing, while making it easier for statisticians to measure the growth in the economy earlier and more accurately.

It gives academic economists great ability to analyse what’s happening in particular industries, and gives the econocrats a better understanding of what and how to regulate the things business gets up to.

For the first time, the taskforce has developed a database that tracks company mergers throughout the whole economy. Believe it or not, it does this by looking at the flows of workers moving to different employers.

This will allow it to track the effects of mergers on the performance of businesses, on employment and on industry concentration – that is, fewer firms controlling more of a particular market.

The new database has already revealed three worrying things. First, because notifying the competition regulator the ACCC of an intended merger is voluntary, it hears of about 330 mergers a year, whereas there are between 1000 and 1500 mergers occurring annually.

Second, for the most part, it’s huge firms swallowing smaller firms, rather than medium and small firms joining. Get this: the largest 1 per cent of firms account for about half the acquisitions.

Larger companies made more acquisitions over the course of the 2010s. And mergers were most common in manufacturing, retail, professional services, and health and social services.

Third, the firms that are the targets of takeovers are more than twice as likely to own a patent and almost twice as likely to own a trademark.

Remember that patents give inventors a long-term legal monopoly over the use of some invention. So this finding raises the fear that at least some takeovers are motivated by a desire to gobble up an effective competitor, or may even be “killer acquisitions” aimed at killing inventions that threaten the profits of some big player.

Leigh says we can expect to hear more from the government this year on mergers and how they should be regulated. The taskforce issued a consultation paper in November asking for opinions on whether the present arrangements remain fit for purpose.

The ACCC has already proposed a significant increase in its power to block mergers considered likely to substantially lessen competition.

And, last December, the federal government secured agreement from the state treasurers to revitalise national competition policy and commit to developing an agenda for pro-competitive reforms.

Meanwhile, Leigh points to findings by British academics Geoff and Gay Meeks that reveal only one in five research papers find that the typical merger boosts the profits or the sharemarket value of the merged business.

They point out that mergers often boost the remuneration of the company’s managers, while leading to layoffs among workers.

Leigh acknowledges that mergers aren’t necessarily a bad thing, but the small number of proposed mergers that do raise competition concerns warrant close scrutiny.

He says that “for the sake of shareholders, workers and citizens, it is important to ensure that Australia’s regulatory system is not facilitating value-destroying mergers”.

Many of the nation’s chief executives may not agree with that, but most of the rest of us would.

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Want better productivity? Cut population growth

A simple reading of orthodox economics tells you that the urge to maximise profits leads businesses to continuously improve the productivity of their activities. But, as former competition tzar Rod Sims has often reminded us, improving productivity is just one way to increase profits, and there are other ways to do it that are a lot easier.

One other way is to increase your share of the market by having a better product. Or better, coming up with a marketing campaign that merely cons people into believing your product is better.

Another way to increase market share is to undercut your competitors’ prices. But in oligopolies dominated by only a few big players, which many of our markets are, the threat of mutually damaging retaliation is so great that price wars are rare.

(This why the big four banks were so shocked and offended when the Macquarie group, a huge financial group with deep pockets and a small bank, decided recently to get itself a slice of the lucrative home loan market by offering below-market interest rates.)

Another way to increase profits is to take over a competitor. This may or may not increase profitability – percentage return on the share capital invested in the business – to the benefit of shareholders. But the managers of the now-bigger business will have to be paid commensurately higher wages and bonuses.

But the simplest, easiest way to increase profits? Sell into an ever-growing market. And how do you do that? Persuade the government to maintain a high rate of immigration. This is a mission on which big business has had great success in recent decades.

Polling shows the public does not approve of high immigration. With some justification, the punters tend to blame it for road congestion and rising housing costs.

But the Howard government and its Coalition successors did a roaring trade in keeping the punters’ disapproval focused on poor people who arrived uninvited on leaky boats, while they were quietly ushering in all the immigrants that business was demanding. These people arrived by plane, and so drew no media attention.

Is it mere coincidence that productivity improvement has been weak during the period in which immigration-driven population growth has been so strong? I doubt it, though of course, I’m not claiming this is the only factor contributing to weak productivity improvement.

While it makes self-interested, short-sighted sense for businesspeople to be so untiring in their clamour for ever more immigration, the strange thing is that the virtue of rapid population growth goes almost wholly unquestioned by the nation’s economists.

Population growth is an article of faith for almost every economist. For a profession that prides itself on being so “rational”, it’s surprising how little thinking economists do about the pros and cons of immigration. There’s little empirical evidence to support their unwavering commitment to high immigration, but they don’t need any evidence to keep believing what almost all of them have always believed.

Before we get to the narrowly economic arguments, let’s start with the bigger picture. The primary reason for doubting the sense of rapid population growth is the further damage every extra person does to the natural environment.

As the sustainable population advocates put it: too many people demanding too much of our natural environment.

Economists have gone from the beginning of their discipline assuming that the economy and the environment can be analysed in separate boxes. This further assumes that any adverse interaction between the two is so minor it can be safely ignored.

In an era of climate change and growing loss of species, this is clearly untenable. The economy and the natural environment that sustains it have to be joined up. But when it comes to population growth, these are dots the profession hasn’t yet joined.

Even on narrowly economic considerations, however, economists long ago stopped checking their calculations. It’s obvious that a bigger population means a bigger economy, and since economists are the salespersons of economic growth, what more do you need to know?

Well, you need to know that economic growth achieved merely through population growth leads to what the salespersons are promising the punters: a higher material standard of living. Simply, higher income per person.

If there is evidence higher population growth leads to higher income per person, I’ve yet to see it. I have seen a study by the Productivity Commission that couldn’t find any. And I have seen a study showing that the higher a country’s population growth, the lower its growth in gross domestic product per person.

But it doesn’t surprise me that the committed advocates of population growth don’t wave around any evidence they have to support their faith. What is well understood, though the advocates seem to have forgotten it, is that, whatever economic benefits immigration may or may not bring, it comes with inescapable economic costs.

Which are? That every extra person dilutes our existing per-person investment in business equipment and structures, housing stock and public infrastructure: schools, hospitals, police stations, roads and bridges, and much else.

In other words, every extra person requires us to spend many resources on preventing this population growth from diminishing our economic and social capital per head, and thereby making us worse off.

Economists call this “capital widening”, as opposed to “capital deepening”, which means providing the population with more capital equipment and infrastructure per person.

Trouble is, there’s a limit to how much the nation can save – or borrow from overseas – to finance our investment in housing, business equipment and structures, and public infrastructure. So resources we have to devote to capital widening, thanks to population growth, are resources we can’t devote to the capital deepening that would increase our standard of living.

Using immigration to raise our living standards is like trying to go up a down escalator. You have to run just to stop yourself going backwards. This is smart?

In practice, it’s worse than that. There’s a big government co-ordination problem. It’s the federal government that’s responsible for immigration levels, and that collects most of the taxes the immigrants pay, but it’s mainly the state governments that are lumbered with organising the extra housing and building the extra sewers, roads, transport, schools, hospitals and other facilities needed to avoid congestion and overcrowding.

Another thing to remember is that the easier you make it for businesses to get the skilled workers they need by bringing them in from abroad, the more you tempt them not to go to the expense and inconvenience of bothering with apprentices and trainees.

This is why so many businesses were caught short when, during the pandemic, their access to imported skilled labour was suddenly cut off. No wonder they were shouting to high heaven about the need to reopen their access to cheap labour. A lot of it was actually unskilled labour from overseas students, backpackers and others on temporary visas, who are easy to take advantage of.

Have you joined the dots? If giving business what it wants – high immigration to grow the market and provide ready access to skilled and unskilled workers – hasn’t induced business to increase the productivity of its labour, why don’t we try the opposite?

Make it harder for business to increase profits without improving productivity and investing in training our local workforce. Of course, this would require us to value productivity improvement more highly than population growth.

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AI will make or break us - probably a bit of both

Depending on who you talk to, AI – artificial intelligence – is the answer to the rich world’s productivity slowdown and will make us all much more prosperous. Or it will lead to a few foreign mega tech companies controlling far more of our lives than they already do.

So, which is it to be? Well, one thing we can say with confidence is that, like all technological advances, it can be used for good or ill. It’s up to us and our governments to do what’s needed to ensure we get a lot more of the former than the latter.

If all the talk of AI makes your eyes glaze (or you’re so old you think AI stands for artificial insemination), let’s just say that AI is about making it possible for computers to learn from experience, adjust to new information and perform human-like tasks, such as recognising patterns, and making forecasts and decisions.

Scientists have been talking about AI since the 1950s, but in recent years they’ve really started getting somewhere. It took the telephone 75 years to reach 100 million users, whereas the mobile phone took 16 years and the web took seven.

You’ve no doubt seen the fuss about an AI language “bot”, ChatGPT, which can understand questions and generate answers. It was released last year and took just two months to reach 100 million users.

This week the competition minister, Dr Andrew Leigh, gave a speech about AI’s rapidly growing role in the economy. What that’s got to do with competition we’ll soon see.

He says the rise of AI engines has been remarkable and offers the potential for “immense economic and social benefits”.

It “has the potential to turbocharge productivity”. Most Australians work in the services sector, where tasks requiring the processing and evaluation of information and the preparation of written reports are ubiquitous.

“From customer support to computer programming, education to law, there is massive potential for AI to make people more effective at their jobs,” Leigh says.

“And the benefits go beyond what shows up in gross domestic product. AI can make the ideal Spotify playlist for your birthday, detect cancer earlier, devise a training program for your new sport, or play devil’s advocate when you’re developing an argument.”

That’s the optimists’ case. And there’s no doubt a lot of truth to it. But, Leigh warns, “it’s not all upside”.

“Many digital markets have started as fiercely competitive ecosystems, only to consolidate [become dominated by a few big companies] over time.”

We should beware of established businesses asserting their right to train AI models on their own data (which is how the models learn), while denying access to that data to competitors or new businesses seeking to enter the industry.

Leigh says there are five challenges likely to limit the scope for vigorous competition in the development of AI systems.

First, costly chips. A present, only a handful of companies has the cloud and computing resources needed to build and train AI systems. So, any rival start-ups must pay to get access to these resources.

As well, the chipmaker Nvidia has about 70 per cent of the world AI chips market, and has relationships with the big chip users, to the advantage of incumbents.

Second, private data. The best AI models are those trained on the highest quality and greatest volume of data. The latest AI models from Google and Meta (Facebook) are trained on about one trillion words.

And these “generative” AI systems need to be right up-to-date. But the latest ChatGPT version uses data up to only 2021, so thinks Boris Johnson and Scott Morrison are still in power, and doesn’t know the lockdowns are over.

Which brings us, third, to “network effects”. If the top ride-hailing service has twice as many cars as its rival, more users will choose to use it, to reduce their waiting times. So, those platforms coming first tend to get bigger at the expense of their rivals.

What’s more, the more customers the winners attract, the more data they can mine to find out what customers want and don’t want, giving them a further advantage.

This means network effects may fuel pricing power, entrenching the strongest platforms. If AI engines turn out to be “natural monopolies”, regulators will have a lot to worry about.

Fourth, immobile talent. Not many people have the skills to design and further develop AI engines, and training people to do these jobs takes time.

It’s likely that many of these workers are bound by “non-compete” clauses in their job contracts. If so, that can be another factor allowing the dominant platforms to charge their customers higher prices (and pay their workers less than they should).

Finally, AI systems can be set up on an “open first, closed later” business plan. I call it the drug-pusher model: you give it away free until you get enough people hooked, then you start charging.

Clearly, the spread of AI may well come with weak competitive pressure to ensure customers get a good deal and rates of profit aren’t excessive.

Just as competition laws needed to be updated to deal with the misbehaviour of the oil titans and rail barons of 19th century America, so too we may need to make changes to Australian laws to address the challenges that AI poses, Leigh says.

The big question is how amenable to competition the development of AI is. In other, earlier new industries, competition arose because key staff left to start a competing company, or because it made sense for another firm to operate in a different geographic area, or because customers desired a variant on the initial product.

“But if AI is learning from itself, if it is global, and if it is general, then these features may not arise.” If so, concentration maybe more likely than competition.

Get it? If we’re not careful, a few foreign mega tech companies may do better out of AI than we do.

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Albanese's big chance to improve inflation, productivity and wages

Are Anthony Albanese and his ministers a bunch of nice guys lacking the grit to do much about their good intentions? Maybe. But this week’s announcement of a review of competition policy raises hope that the nice guys intend to make real improvements.

The review, which will provide continuous advice to the government over the next two years, has been set up because “greater competition [between Australia’s businesses] is critical for lifting dynamism, productivity and wages growth [and] putting downward pressure on prices”, Treasurer Jim Chalmers says.

As I wrote on Monday, the great weakness in our efforts to reduce high inflation has been our assumption that its causes are purely macroeconomic – aggregate demand versus aggregate supply – with no role for microeconomics: whether businesses in particular industries have gained the power to push their prices higher than needed to cover their increased costs.

But it seems Chalmers understands that. “Australia’s productivity growth has slowed over the past decade, and reduced competition has contributed to this – with evidence of increased market concentration [fewer businesses coming to dominate an industry], a rise in markups [profit margins] and a reduction in dynamism [ability to change and improve] across many parts of the economy,” he says.

The former boss of the Australian Competition and Consumer Commission, Rod Sims, had some pertinent comments to make about all this at a private business function last week.

He observes that “companies worked out long ago that the essence of corporate strategy is to gain market power and erect entry barriers. Profits from ‘outrunning’ many competitors from a common starting point are generally small; profits from gaining market power are usually large.

“Businesspeople know that when the number of competitors gets too large, price competition is often the result, and that this ‘destroys shareholder value’ or, alternatively put, helps consumers.”

Sims says the goals of growing and sharing the economic pie are being damaged in Western economies, and in Australia, by inadequate competition leading to market power. But, aside from the specialists, the economics profession more broadly has been slow to realise this and factor it into policy responses.

Australia has an extremely concentrated economy, Sims says. We have one dominant rail freight company operating on the east coast, one dominant airline with two-thirds of the market, two beer companies, two ice-cream sellers and two ticketing companies, all with a 90 per cent share of their markets.

We have two supermarkets with a combined market share of about 70 per cent. We have three dominant energy retailers and three dominant telecommunications companies. We have four major banks, with a 75 per cent share of the home mortgage market.

This is much greater concentration than in other developed countries. And, as you’d expect, the profit margins of these companies generally exceed those of comparable companies overseas.

The centuries that businesses have spent pursuing economies of scale explain why we don’t have – and shouldn’t want - the huge number of small firms assumed by the economic theory burnt on the brains of most economists.

But, Sims argues, our relatively small population doesn’t justify the much greater concentration of our industries. For one thing, studies of Australian industry sectors show that the returns to scale stop increasing well before market shares are anything like as high as they are in Australia.

For another, Australia’s modest size doesn’t explain why our industries are getting ever more concentrated, so that our key players are less likely to be challenged by competitors.

And it’s not just our high concentration, it’s also that we see large asset-managing institutions with big shareholdings in most of the firms dominating an industry. Thus, asset managers have an interest in keeping the whole industry’s profits high by limiting price competition between the companies.

One study, of 70,000 firms in 134 countries, found that the average prices charged by our listed companies were 40 per cent above the companies’ marginal cost of production in 1980, and about the same in the late 1990s. But by the early 2000s, average prices were 40 per cent above marginal cost. By 2010, they’d risen to 50 per cent above, and by 2016 it was nearly 60 per cent.

Analysis by federal Treasury has found that our companies’ markups increased over the 13 years to 2017.

The evidence in Australia and overseas is that in concentrated industries we see less dynamism, lower investment and lower productivity, Sims says. Our productivity performance has been very poor at a time when our focus on pro-competition public policy appears to have been lost.

It’s not hard to believe that the latter explains the former. “We run harder when competing versus when we run alone,” Sims says.

Our Treasury’s research also shows that firms in concentrated markets are further from the productivity frontier as there’s less incentive to keep up.

And market concentration also has implications for wage levels. Where labour mobility – the ease with which people move between employers – is reduced, wage levels are lower.

But high industry concentration means fewer firms that workers can move to, bringing relevant skills, and fewer new firms entering the industry. Less competition for workers means lower wages.

“Non-compete clauses” make the problem worse. Recent Australian studies have shown that more than one in five employees are prevented from working for competitors under such contract terms, often even in fairly low-skilled jobs.

Another finding is that the benefits of improved productivity are less shared with workers in concentrated industries. The share of productivity gains going to workers has declined by 25 per cent in the last 15 years, Sims says.

So next time some business person, politician, Reserve Bank governor or other economists tells you higher productivity automatically increases everyone’s wage, don’t fall for it. Used to be true; isn’t any more.

All this says that if the Albanese government is fair dinkum about getting inflation down and productivity and wages up, it will at least ban non-compete clauses and tighten up our merger laws.

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We won't fix inflation while economists stay in denial about causes

Led on by crusading Reserve Bank governors, the nation’s economists are determined to protect us from the scourge of inflation, no matter the cost in jobs lost.

But there’s a black hole in their thinking about the causes of inflation, only some of which must be stamped on. Others can be ignored. Meanwhile, here’s another sermon demanding the government act to raise productivity.

In your naivety, you may think that inflation is caused by businesses putting up their prices. But economists know that’s not the problem. Businesses raise their prices only in response to “market forces”. When demand for their products exceeds the supply, businesses seize the chance to raise their prices.

In your ignorance, you may think they do this out of greed, a desire to increase “shareholder value” at the expense of their customers. But that’s the wrong way to look at it.

In raising their prices, businesses aren’t being opportunistic, they’re only doing what comes naturally, playing their allotted role in allowing the “price mechanism” to bring demand and supply back into balance.

As balance is restored, the price will fall back, pretty much to where it was before. What? You hadn’t noticed? Funny that, neither had I.

No, what causes prices to keep rising at a rapid rate is when the greedy workers and their unions force businesses to increase their wages in line with the rise in the cost of living. Can’t the fools see that this merely perpetuates the rapid rise in prices?

So, what we need to get inflation down quickly is for workers to take it on the chin. They can have a bit of a pay rise – say, 2.5 per cent – but nothing more, especially when there’s been no increase in the productivity of their labour.

This will cut the workers’ real incomes and lower their standard of living, of course, but that can’t be helped. It’s the only way we can make them stop spending as much, so businesses won’t be able to get away with continuing to raise their prices by more than 2.5 per cent.

But cutting real wages probably won’t be enough to stop businesses raising their prices so high, so we’ll need to raise interest rates and really put the squeeze on workers with big mortgages. Sorry, nothing else we could do.

Yet another worry is our return to full employment. If the demand for labour exceeds its supply, that would allow the suppliers of labour – aka workers – to raise their prices – aka wages – and that would never do.

Indeed, our history-based calculations say the unemployment rate has already fallen below the level that causes wage and price inflation to take off. It hasn’t yet, but it will.

But not to worry. As incoming Reserve Bank governor Michele Bullock explained in a speech extolling full employment, the Reserve estimates it should only be necessary to raise the rate of unemployment by 1 percentage point to 4.5 per cent to get inflation back down to where we want it.

What! Cried the punters in stunned amazement. To get inflation down you will knowingly put about 140,000 workers out of work? How could you be so utterly inhuman?

What stunned and amazed the nation’s economists is that anyone should be surprised or offended by this. Don’t they know that’s the way we always do it? And 140,000 job losses would be getting off lightly.

Just so. When, as now, the Reserve Bank and the government accidentally overstimulate the economy, allowing businesses to increase their prices by more than they need to, what we always do to stop businesses raising their prices is bash up their customers until the fall-off in households’ spending – caused partly by people losing their jobs – makes it impossible for businesses to keep increasing their prices.

Problem solved. Standard practice is to put a stop to businesses’ opportunism – their “rent-seeking” as economists say – by bashing up their workers and customers until the businesses desist.

But what never happens is that the level of prices falls back to about where it was before the econocrats stuffed up – as the economists’ price-mechanism theory promises it will.

Why doesn’t the theory work? Because what’s required to make it work is intense competition between many small firms. When one firm decides to raise its prices and fatten its profit margin, the others undercut it and it either pulls its head in or goes out backwards.

In the real world, industries are increasingly dominated by just a few huge firms – firms that have become so mainly by taking over their smaller competitors. This is true in all the rich economies, but none more so than ours.

Economists know that “oligopolies” form because it’s easier for a few big firms to gain a degree of control over the prices they charge (whereas the price-mechanism theory assumes they’re too small to have any control).

The few big players compete on marketing and advertising, and using minor product differentiation, but never on price. When prices rise, they rise together – and rarely come back down.

Economists know all this – it’s knowledge gained and taught by economists – but it’s classed as “microeconomics”, whereas the econocrats seeking to manage the economy and keep inflation low specialise in “macroeconomics”. And they never join the dots – though that’s changing in other countries.

This year the European Central Bank, the International Monetary Fund and the Organisation for Economic Co-operation and Development have delved into the national accounts and determined that rising profit margins explain a high proportion of the recent inflation surge.

But when the Australia Institute replicated this analysis for Australia, both Treasury and the Reserve Bank used dodgy graphs and dubious arguments to dismiss its work as “flawed”.

Entrenched inflation only emerged as a problem in the 1970s. After much debate, the world’s economists decided the problem was caused by powerful unions, whose expectations of continuing high inflation caused a “wage-price spiral”, which could only be broken by using high interest rates to put the economy into recession.

This is the thinking we’ve had full strength from the Reserve for the past year or more. Since the 1970s, however, multiple developments have weakened the unions’ bargaining power, while decades of takeovers have increased our big businesses’ pricing power – without the econocrats noticing.

And despite their unceasing sermons about the need for governments to increase national productivity, it’s never occurred to them that the primary driver of productivity improvement is intense competition between businesses.

The calls by successive heads of the Australian Competition and Consumer Commission for stronger powers to block mergers that would “substantially lessen competition” have gained no support from the Reserve, Treasury or economists generally.

But we won’t fix inflation until we have stronger laws defending competition.

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Less competition reduces the power of interest rates to cut inflation

The ground has been shifting under the feet of the world’s central bankers, including our own Dr Philip Lowe, the outgoing chief of the RBA. This has weakened the power of higher interest rates to get inflation down.

Like all economists, central bankers believe their theory – their “model” – gives them great understanding of how the economy works and what they have to do to keep inflation low and employment high.

They know, for instance, that inflation – rising prices – occurs when the demand for goods and services exceeds the economy’s ability to supply those goods and services. So they can use an increase in interest rates to discourage businesses and households from spending so much.

This will reduce the demand for goods and services, bringing it into alignment with supply and so stop it causing prices to rise so quickly. It will also slow the rate at which the economy’s growing, of course.

But, with a bit of care, they won’t need to push interest rates so high the economy goes into “recession”, when demand (spending) becomes so weak that the economy gets smaller, causing some businesses to go bust and many workers to lose their jobs.

This theorising has worked reasonably well for many years, leading central bankers to be confident they know how to fix the present surge in inflation.

But the economy keeps changing, particularly as we keep using advances in technology to improve the range of goods and services we produce, and the way we produce them.

One consequence of our businesses’ unending pursuit of labour-saving technology – more of the work being done by machines and less by humans – has not been fewer jobs, but bigger factories and businesses.

As in all the rich economies, many industries are now dominated by just a few huge companies. In our case, we’re down to just four big banks, three big power companies, three big phone companies, two airlines and two supermarket chains. And that’s before you get the handful of giants dominating the rich world’s internet hardware, software and platforms.

Trouble is, when just a few firms dominate an industry, they gain “market power” – the power to hold their prices well above their costs; to increase their “markup”, as economists say.

The size of markups is a measure of the degree of competition in an industry. When competition between firms is strong, markups are low. When competition is weak, markups are high.

There is much empirical evidence that industries in the rich countries have become more concentrated over time, and markups have risen. And, as I’ve written before, Australia’s no exception to this trend.

In economics, “monopoly” means just one seller. “Monopsony” means just one buyer. So, when a firm has a degree of monopoly power, it can overcharge its customers. When a firm has a degree of monopsony power – when workers don’t have many employers to pick from – it can underpay its workers.

Researchers have found much evidence of labour-market power. And again, I’ve written before about the evidence this, too, is happening in Australia.

But this week, at the annual Australian Conference of Economists, federal Competition Minister Andrew Leigh, himself a former economics professor, drew attention to two recent International Monetary Fund research papers suggesting that a lack of competition is reducing the effectiveness of monetary policy – the manipulation of interest rates – in influencing inflation.

The first paper, by Romain Duval and colleagues, uses American data and data from 14 advanced economies to find that, compared with low-markup firms, high-markup firms are less likely to respond to changes in interest rates. The level of their sales changes less, as do their decisions about future investment in production capacity.

So, fat markups mean companies are less likely to change their behaviour. They’re not likely to cut their investment spending, for example.

This means more of the pressure to respond to higher rates will fall on households with big mortgages, but also on firms with low markups.

The second paper, by Anastasia Burya and colleagues, uses online job ads from across the United States to find that in regions where firms have a lot of labour-market power – that is, where workers don’t have much choice of where to work – those firms can hire workers without having to offer higher wages to attract the people they need.

This is the opposite of what standard theory predicts. It’s bad news for workers, who could have expected strong demand for labour to push up wages.

But another way to look at it is that, where big firms have labour-market power, there’s little relationship between employment and the change in wages. If so, conventional calculations of the “non-accelerating-inflation rate of unemployment” – the lowest point to which unemployment can fall without causing wages to take off – will give wrong results, encouraging central banks to keep unemployment higher than it needs to be.

And at times when price inflation is too high, unemployment will have to rise by more than you’d expect to get the rate of inflation back down to where you want it. How do you bring about a bigger rise in unemployment? By increasing interest rates more than you expected you’d have to.

So, whether it’s inadequate competition in the markets for particular products, or inadequate competition in the market for workers’ labour, lack of competition makes monetary policy – moving interest rates – less effective than central bankers have assumed it to be.

The model of how markets work that central bankers (and most other economists) rely on assumes that the competition between firms – including the competition for workers – is intense.

In the real world, however, markets have increasingly become dominated by just a few huge firms, which has given them the power to keep prices higher than they should be, and wages lower than they should be.

Leigh, Minister for Competition, gets the last word: “If you care about central banks being able to do their jobs, then you should care about a competitive and dynamic economy.”

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Ever wondered why your wages aren't rising?

It’s dawning on people that when the competition between businesses isn’t strong, firms can raise their prices by more than the increase in their costs, and so fatten their profit margins. What’s yet to dawn is that weak competition also allows businesses to pay their workers less than they should.

In standard economic theory, it’s the intense competition between firms that prevents them from overcharging for their products and earning more than a “normal” profit.

Normal profit gives the owners of the firm just sufficient return on the capital they’ve invested to stop them leaving the industry and trying their luck elsewhere.

The theory assumes the industry has numerous firms, each one too small to influence the market price. In today’s world, however, many markets are dominated by just two, three or four huge firms.

These firms are big enough to influence the market price, especially when it’s so easy for them to collude tacitly with their rivals.

We see the four big banks doing this every time interest rates are raised. They have an unspoken agreement not to compete on price.

EverI say they have “pricing power”, but many economists say they have “monopoly power”. How can a handful of firms have monopoly power? Because economists don’t use that term literally. On a scale of one to 1000 firms, we’re right down the monopoly end.

Dr Andrew Leigh, the Assistant Minister for Competition, and a former economics professor, has been giving a series of speeches about recent empirical studies on how competitive our markets are.

In one, he quoted the findings of Jonathan Hambur, a researcher who pivots between Treasury and the Reserve Bank, that Australian firms’ “mark-ups” – the gap between their cost of production and their selling price – have been rising steadily.

But in a further speech this month, Leigh turned the focus from what “market concentration” (among a few massive companies) means for the industry’s customers, to what it means for its employees.

So, in econospeak, we’re moving from monopoly to “monopsony”. Huh? Taken literally, monopoly means a market in which there’s a single seller meeting the demand for the product. Monopsony means there’s a single buyer from the people supplying the inputs to production. Workers supply the firm with the labour it needs.

The term was introduced by Joan Robinson, a colleague of Keynes at Cambridge, who was among the first to question the standard theory of how markets work. She was 30 in 1933 when she published her dissenting view that truly competitive markets were rare.

She argued that monopsony was endemic in the labour market and employers were using it to keep wages low. If there are few employers competing for workers, those workers have fewer “outside options” (to move to another firm offering higher pay or better conditions).

This limits workers’ bargaining power and gives employers the power to keep wages lower.

At the time, few economists took much interest. But in recent years there’s been a growing focus on market power by academic economists.

For instance, monopsony was cited in a US Supreme Court ruling against Apple in 2019. A report by Democrats in the US House of Representatives accused Amazon of using monopsony power in its warehouses to depress wages in local markets.

Evidence from the US, Britain and Europe has demonstrated that increases in labour market concentration – fewer employers to work for – are associated with lower wages.

Leigh says economists have long known that people in cities tend to earn more than those in regional areas. His own research found that when someone moves from a rural area to a major Australian city, their annual income rises by 8 per cent.

“The economics of monopsony suggests that an important part of the urban wage premium can be explained by greater employer competition in denser labour markets,” Leigh says.

Leigh reminds us that Australia’s average full-time wage ($1808 a week last November) was only $18 a week higher than it was 10 years ago, after allowing for inflation. Many things would explain this pathetic improvement, but one factor could be employers’ monopsony.

We know that the rate at which people move between employers has fallen. But over a person’s working life, the biggest average wage gains come when people switch employers. And when some people leave, the bargaining power of those who stay is increased.

This decline in people moving could be caused by increased employer monopsony. Hambur has done a study of employment concentration between 2005 and 2016.

He found that, within industries where concentration rose, growth in real wages over the decade was significantly lower.

When a firm has a large share of the industry’s employment, the gap between the value of the work a worker does, and the wage they’re paid in return, tends to grow.

He found that employment in regions close to major cities is twice as concentrated as in the cities. In remote areas it’s three times.

Read this carefully: Hambur found that labour markets had not become more concentrated over the decade. But at every degree of concentration, its negative impact on wages had more than doubled.

So, employers’ market power could well be a factor helping to explain the virtual absence of real wage growth over a decade. Hambur finds that the greater impact of employer concentration may have caused wage growth between 2011 and 2015 to be 1 per cent lower than otherwise.

This would help explain why not all the (weak) growth in the productivity of labour during the period was passed through to real wages – as conventional economists and business people always assure us it will be. Weak competition allowed employers to keep a lot of it back for themselves.

Part of the competitive process is new firms entering the industry. New firms usually poach staff away from the existing firms. But we know the rate of new entry has declined.

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RBA inquiry should propose something much better

The inquiry into the Reserve Bank, due to report this month, will be disappointing if it does no more than suggest modest improvements in the way it does its job. The question it should answer is: should we give so much responsibility to an institution with such a limited instrument – interest rates – and with such a narrow focus?

In Reserve Bank governor Dr Philip Lowe’s lengthy appearance before the House of Representatives Economics Committee last month, he spent much of his time reminding critics that he only has one tool, so he can’t do anything to resolve the problems they were complaining about.

He’s right. But if the problems are real, and he can’t do anything about them, why should the central bank be the top dog when it comes to managing the economy, and Treasury’s job be limited to worrying about debt and deficit?

Shouldn’t the greatest responsibility go to an institution with more instruments, and ones capable of doing more tricks?

By the way, if you’re wondering why I’ve had so much to say recently about the limitations of monetary policy and the questionable convention of making it dominant in the management of the macroeconomy, it’s because it’s the obvious thing to do while we’re holding an inquiry into Reserve Bank’s performance.

Frenchman Olivier Blanchard, one of the world’s top macroeconomists, recently caused a storm when he tweeted about “a point which is often lost in discussions of inflation and central bank policy”.

“Inflation,” he wrote, “is fundamentally the outcome of the distributional conflict between firms, workers and taxpayers. It stops only when the various players are forced to accept the outcome.”

Oh, people cried, that can’t be right. Inflation is caused when the demand for goods and services exceeds the supply of them.

In truth, both propositions are correct. At the top level, inflation is simply about the imbalance between demand and supply. At a deeper level, however, “distributional conflict” between capital and labour can be the cause of that imbalance.

Businesses add to inflation when they seek to increase their profit margins. Workers and their unions add to inflation when they seek to increase their real wages by more than the productivity of labour justifies.

But this way of thinking is disconcerting to central bankers because – though there may well be a way of reducing inflation pressure by reducing the conflict between labour and capital – there’s nothing the Reserve can do about it directly.

Central banks’ interest-rate instrument can fix the problem only indirectly and brutally: by weakening demand (spending) until the warring parties are forced to suspend hostilities. So distributional conflict is the first thing monetary policy (the manipulation of interest rates) can’t really fix.

Then there’s inflation caused by other supply constraints, such as the pandemic or wars. Again, monetary policy can’t fix the constraint, just bash down demand to fit.

The next things monetary policy doesn’t do are fairness and effectiveness. When we’re trying to reduce inflation by reducing people’s ability to consume goods and services, it would be nice to do so with a tool that shared the burden widely and reasonably evenly.

A temporary increase in income tax or GST would do that, but increasing interest rates concentrates the burden on people with big mortgages. This concentration means the increase has to be that much greater to achieve the desired slowing in total consumer spending.

A further dimension of monetary policy’s unfairness is the way it mucks around with the income of savers. Their interest income suddenly dives when the Reserve decides it needs to encourage people to borrow and spend.

In theory, this is made up for when the Reserve decides to discourage people from borrowing and spending, as now. In practice, however, the banks drag their feet in passing higher interest rates on to their depositors. But it’s rare for the Reserve even to chivvy the banks for their tardiness.

Governments need to be free to encourage or discourage consumers from spending. But where’s the justification for doing this by riding on the backs of young people saving for a home and old people depending on interest income to live on?

The next thing monetary policy doesn’t do is competition. What’s supposed to keep prices no higher than they absolutely need to be is the strength of competition between businesses. You’d think this would be a matter of great interest to the Reserve, especially since there are signs that businesses increasing their “markups” are part of the present high inflation.

But only rarely does the Reserve mention the possibility, and only in passing. It gives no support to the Australian Competition and Consumer Commission’s efforts to limit big firms’ pricing power.

The final thing monetary policy doesn’t do is housing. The Reserve is right to insist that its increases in interest rates aren’t the main reason homes have become so hard to afford.

The real reason is the failure of governments to increase the supply of homes in the places people want to live – close to the centre of the city, where the jobs are – exacerbated by their failure to provide decent public transport to outer suburbs.

But the ups and downs of mortgage interest rates must surely be making affordability worse. To this, Lowe’s reply is that, sorry, he’s got a job to do and only one instrument to do it with, so he can’t be worried about the collateral damage he’s doing to would-be young home buyers.

Well, he can’t be worried, but his political masters can. And if they’re not game to fix the fundamental factors driving up house prices, they should be willing to create an instrument for the short-term management of demand that doesn’t cause as many adverse side effects as using interest rates does.

The one big thing going for monetary policy as a way of keeping the economy on track is that the Reserve’s independence of the elected government allows it to put the economy’s needs ahead of the government’s need to sync the economy with the next election.

But, as various respected economists have pointed out, there’s no reason the government can’t design a fiscal instrument, giving another body the ability to raise or lower it within a specified range, and making that body independent, too.

It’s the Reserve Bank inquiry’s job to give the government some advice on why and how it should make a change for the better.

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Central banking: don't mention business pricing power

Despite the grilling he got in two separate parliamentary hearings last week, Reserve Bank governor Dr Philip Lowe’s explanation of why he was preparing mortgage borrowers for yet further interest rate increases didn’t quite add up. There seemed to be something he wasn’t telling us – and I think I know what it was.

We know that, as well as rising mortgage payments, we have falling real wages, falling house prices and a weak world economy. So it’s not hard to believe the Reserve’s forecasts that the economy will slow sharply this year and next, unemployment will rise (it already is), and underlying inflation will be back down to the top of the 2 per cent to 3 per cent target range by the end of next year.

So, why is Lowe still so anxious? Because, he says, it’s just so important that the present high rate of inflation doesn’t become “ingrained”. “If inflation does become ingrained in people’s expectations, bringing it back down again is very costly,” he said on Friday.

Why is what people expect to happen to inflation so crucial? Because their expectations about inflation have a tendency to be self-fulfilling.

When businesses expect prices to keep on increasing rapidly, they keep raising their own prices. And when workers and their unions expect further rapid price rises, they keep demanding and receiving big pay rises.

This notion that, once people start expecting the present jump in inflation to persist, it becomes “ingrained” and then can’t be countered without a deep recession has been “ingrained” in the conventional wisdom of macroeconomists since the 1970s.

They call it the “wage-price spiral” – thus implying it’s always those greedy unionists who threw the first punch that started the brawl.

In the 1970s and 1980s, there was a lot of truth to that characterisation. In those days, many unions did have the industrial muscle to force employers to agree to big pay rises if they didn’t want their business seriously disrupted.

But that’s obviously not an accurate depiction of what’s happening now. The present inflationary episode has seen businesses large and small greatly increasing their prices to cover the jump in their input costs arising from pandemic-caused supply disruptions and the Ukraine war.

Although the rate of increase in wages is a couple of percentage points higher than it was, this has fallen far short of the 5 or 6 percentage-point further rise in consumer prices.

So Lowe has reversed the name of the problem to a “prices-wages spiral”. In announcing this month’s rate rise, he said that “given the importance of avoiding a prices-wages spiral, the board will continue to play close attention to both the evolution of labour costs and the price-setting behaviour of firms in the period ahead”.

Lowe admits that inflation expectations, the thing that could set off a prices-wages spiral, have not risen. “Medium-term inflation expectations remain well anchored,” but adds “it is important that this remains the case”.

If that’s his big worry, Treasury secretary Dr Steven Kennedy doesn’t share it. Last week he said bluntly that “the risk of a price and wage spiral remains low, with medium-term inflation expectations well anchored to the inflation target.

“Although measures of spare capacity in the labour market show that the market remains tight, the forecast pick-up in wages growth to around 4 per cent is consistent with the inflation target.”

So, why does Lowe remain so concerned about inflation expectations leading to a prices-wages spiral that he expects he’ll have to keep raising the official interest rate?

There must be something he’s not telling us. I think his puzzling preoccupation with inflation expectations is a cover for his real worry: oligopolistic pricing power.

Why doesn’t he want to talk about it? Well, one reason could be that the previous government has given him a board stacked with business people.

A better explanation is that he’s reluctant to admit a cause of inflation that’s not simply a matter of ensuring the demand for goods and services isn’t growing faster than their supply.

Decades of big firms taking over smaller firms and finding ways to discourage new firms from entering the industry has left many of our markets for particular products dominated by two, three or four huge companies – “oligopoly”.

The simple economic model lodged in the heads of central bankers assumes that no firm in the industry is big enough to influence the market price. But the whole point of oligopoly is for firms to become big enough to influence the prices they can charge.

When there are just a few big firms, it isn’t hard for them reach a tacit agreement to put their prices up at the same time and by a similar amount. They compete for market share, but they avoid competing on price.

To some degree, they can increase their prices even when demand isn’t strong, or keep their prices high even when demand is very weak.

I suspect what’s worrying Lowe is his fear that our big firms will be able keep raising their prices even though his higher interest rates have greatly weakened demand. If so, his only way to get inflation back to the target band will be to keep raising rates until he “crunches” the economy and forces even the big boys to pull their horns in.

It’s hard to know how much of the surge in prices we saw last year was firms using their need to pass on to customers the rise in their input costs as cover for fattening their profit margins.

We do know that Treasury has found evidence of rising profit margins – “mark-ups”, as economists say – in Australia in recent decades.

And a study by the Federal Reserve Bank of Kansas City has found that mark-ups in the US grew by 3.4 per cent in 2021.

But for Lowe (and his predecessors, and peers in other central banks) to spell all that out is to admit there’s an important dimension of inflation that’s beyond the direct control of the central banks.

If he did that, he could be asked what he’s been doing about the inflation caused by inadequate competition. He’d say competition policy was the responsibility of the Australian Competition and Consumer Commission, not the Reserve. True, but what an admission.

In truth, the only person campaigning on the need to tighten competition policy in the interests of lower inflation is the former ACCC chair, Professor Rod Sims. Has he had a shred of public support from Lowe or Kennedy? No.

Final point: what’s the most glaring case of oligopolistic pricing power in the country? The four big banks. Since the Reserve began raising interest rates, their already fat profits have soared.

Why? Because they’ve lost little time in passing the increases on to their borrowing customers, but been much slower to pass the increase through to their depositors. Has Lowe been taking them to task? No, far from it.

But his predecessors did the same – as no doubt will his successors, unless we stop leaving inflation solely to a central bank whose only tool is to fiddle with interest rates.

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Why the customer doesn't always come first

The world is a complicated place. I have no doubt that the capitalist, market-based way of running an economy delivers the best results for workers and consumers. But that doesn’t mean companies never do bad things, nor that every business always does the right thing by its customers.

The father of modern economics, Adam Smith, famously said that “it is not from the benevolence of the butcher, the brewer, or the baker that we expect our dinner, but from their regard to their own interest”.

But, he argued, the “invisible hand” of “market forces” – the interaction of demand and supply in moving prices up and down – takes all the self-interest of businesses and the self-interest of consumers and turns them into businesses getting adequately rewarded for delivering just the right combination of goods and services to all the people in the economy.

There’s a huge amount of truth to that simple – if hard to believe – proposition. But it’s not the whole truth. One way to think of it is that, as Winston Churchill said of democracy, it’s the worst way of doing it – except for all the other ways. In this case, except for leaving all the decisions about what and how much to produce to the government.

So, to say capitalism is the best way of organising an economy isn’t to say it’s without fault. That it never does things badly.

In a speech this week, Rod Sims, the former chairman of the Australian Competition and Consumer Commission, but now a professor at the Australian National University, said that although companies regularly proclaim that they put their customers first, “companies clearly do not always have the interests of their customers in mind”.

So what are the reasons that, almost 250 years after Smith’s discovery, capitalism doesn’t always give consumers a good deal.

Sims can think of six reasons market forces don’t live up to their billing.

For a start, meeting customer needs may not be the main way companies increase their profits. Businesses are motivated to make profits and to increase those profits. But being the best at meeting the needs of customers isn’t the only way, or even the dominant way, firms succeed, Sims says.

For a firm to stay ahead of its rivals by continually improving its products and services is difficult. And eventually another firm works out how to do things better and cheaper than you.

“Commercial strategy therefore is largely about building defences against the forces of competition. To make it more difficult for other firms to develop a better product. Or, if they do, to limit their access to customers,” he says.

Another reason is that company executives are under considerable sharemarket pressure to increase short-term profits. Companies strive to grow because this attracts investors, the value of their shares rises and their top executives get bigger bonuses.

Sims says many companies set high growth targets to meet the expectations of the sharemarket. Often these targets are higher than the economy’s growth, meaning not all firms can meet or exceed market expectations.

So, in some cases, company executives see no alternative but to push the boundaries to achieve the targets they’ve been set.

That’s bad, but it becomes worse if the poor behaviour of a few causes normal competitive pressure to keep getting better than the others to reverse and become a race to the bottom.

Sims says that in well-functioning markets firms compete on their merits. Firms that offer what consumers value, displace firms that don’t. But the opposite can occur if poor behaviour goes undetected and unpunished, so it gives bad players a competitive edge.

“Firms can win customers through misrepresenting their offers and employing high-pressure selling tactics,” he says. As well as hurting consumers, such behaviour hurts rival firms, tempting them to protect their market share by employing the same questionable tactics.

Yet another problem occurs when firms see nothing wrong with what they’re doing, but their customers do. They (and economists) see nothing wrong with offering a better price – or interest rate – to new customers than they’re charging their existing customers.

But those older customers commonly react with outrage when they discover they’ve gone for years paying more than they needed to. They feel their loyalty has been abused.

Speaking of loyalty, Sims’ final explanation of why customers may be treated badly is that executives may feel their obligations to their company compel them to pursue profit to the maximum, even if their behaviour pushes too close to the boundaries of the law and isn’t the behaviour they would engage in privately.

So, what should be done about all these instances of “market failure” – where markets don’t deliver the wonderful benefits advertised by economists?

Sims has two remedies. First, as he argued strongly while boss of the competition and consumer commission, it needs stronger merger laws to help it prevent anti-competitive mergers. The courts require evidence about what will happen after a merger has occurred, but it’s hard for the commission to prove what hasn’t yet happened.

“The courts seem largely unwilling to accept commercial logic; that if you have market power you will use it. The courts can sometimes seem naive,” he says.

Second, we need a law against unfair practices, as they have in the United States, Britain and most of Europe.

“Our current laws are poorly suited to stopping behaviour ranging from online manipulation of consumers, to processors saying they will reject farm goods unless the prices agreed before the goods were shipped are now lowered.”

In the end, it’s simple. All the claims that capitalism will deliver a great deal for consumers are based on the assumption that businesses face stiff competition from other businesses to keep them in line.

But when too many markets are dominated by a few huge companies, service goes down and prices go up by more than they should.

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RBA warning: our supply-side problems have only just begun

In one of his last speeches for the year, Reserve Bank governor Dr Philip Lowe has issued a sobering warning. Even when we’ve got on top of the present inflation outbreak, the disruptions to supply we’ve struggled with this year are likely to be a recurring problem in the years ahead.

Economists think of the economy as having two sides. The supply side refers to our production of goods and services, whereas the demand side refers to our spending on those goods and services, partly for investment in new production capacity, but mainly for consumption by households.

Lowe notes that, until inflation raised its ugly head, the world had enjoyed about three decades in which there were few major “shocks” (sudden big disruptions) to the continuing production and supply of goods and services.

When something happens that disrupts supply, so that it can’t keep up with demand, prices jump – as we’ve seen this year with disruptions caused by the pandemic and its lockdowns, and with Russia’s attack on Ukraine.

What changes occurred over the three decades were mainly favourable: they involved increased supply of manufactured goods, in particular, which put gentle downward pressure on prices.

This made life easier for the world’s central banks. With the supply side behaving itself, they were able to keep their economies growing fairly steadily by using interest rates to manage demand. Put rates up to restrain spending and inflation; put rates down to encourage spending and employment.

The central banks were looking good because the one tool they have for influencing the economy – interest rates – was good for managing demand. Trouble is – and as we saw this year – managing demand is the only thing central banks and their interest rates can do.

When prices jump because of disruptions to supply, there’s nothing they can do to fix those disruptions and get supply back to keeping up with demand. All they can do is strangle demand until prices come down.

So, what’s got Lowe worried is his realisation that a lot of the problems headed our way will be shocks to supply.

“Looking forward, the supply side looks more challenging than it has been for many years” and is likely to have a bigger effect on inflation, making it jump more often.

Lowe sees four factors leading to more supply shocks. The first is “the reversal of globalisation”.

Over recent decades, international trade increased significantly relative to the size of the global economy, he says.

Production became increasingly integrated across borders, and this lowered costs and made supply very flexible. Australia was among the major beneficiaries of this.

Now, however, international trade is no longer growing faster than the global economy. “Trading blocs are emerging and there is a step back from closer integration,” he says. “Unfortunately, today barriers to trade and investment are more likely to be increased than removed.”

This will inevitably affect both the rise in standards of living and the prices of goods and services in global markets.

The second factor affecting the supply side is demographics. Until relatively recently, the working-age population of the advanced economies was steadily increasing. This was also true for China and Eastern Europe – both of which were being integrated into the global economy.

And the participation of women in the paid labour force was also rising rapidly. “The result was a substantial increase in the number of workers engaged in the global economy, and advances in technology made it easier to tap into this global labour force,” Lowe says.

So, there was a great increase in global supply. But this trend has turned and the working-age population is now declining, with the decline projected to accelerate. The proportion of the population who are either too young or too old to work is rising, meaning the supply of workers available to meet the demand for goods and services has diminished.

The third factor affecting the supply side is climate change. Over the past 20 years, the number of major floods across the world has doubled and the frequency of heatwaves and droughts has also increased.

This will keep getting worse.These extreme weather events disrupt production and so affect prices – as we know all too well in Australia. But as well as lifting fruit and vegetable prices (and meat prices after droughts break and herd rebuilding begins), extreme weather can disrupt mining production and transport and distribution.

The fourth factor affecting the supply side is related: the transition from fossil fuels to renewables. This involves junking our investment in coal mines, gas plants and power stations, and new investment in solar farms, wind farms, batteries and rooftop solar, as well as extensively rejigging the electricity network.

It’s not just that the required new capital investment will be huge, but that the transition from the old system to the new won’t happen without disruptions.

So, energy prices will be higher (to pay for the new capital investment) and more volatile when fossil-fuel supply stops before renewables supply is ready to fill the gap.

Lowe foresees the inflation rate becoming more unstable through two channels. First, shocks to supply that cause large and rapid changes in prices.

Second, the global supply curve becoming less “elastic” (less able to respond to increases in demand by quickly increasing supply) than it has been in the past decade.

Lowe says bravely that none of these developments would undermine the central banks’ ability to achieve their inflation target “on average” - that is, over a few years – though they would make the bankers’ job more complicated.

Well, maybe. As he reminds us, adverse supply shocks can have conflicting effects, increasing inflation while reducing output and employment. The Reserve can’t increase interest rates and reduce them at the same time.

As Lowe further observes, supply shocks “also have implications for other areas of economic policy”. Yes, competition policy, for instance.

My conclusion is that managing the economy can no longer be left largely to the central bankers.

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Hey RBA boomer, things have changed a lot since the 1970s

Sorry, but Reserve Bank governor Dr Philip Lowe’s call for ordinary Australians to make further sacrifice next year in his unfinished fight against “the scourge of inflation” doesn’t hold water. His crusade to save us all from a wage-price spiral is like Don Quixote tilting at windmills only he can see.

In one of his last speeches for the year, Lowe “highlighted the possibility of a wage-price spiral” in Australia. A lesson from the high inflation we experienced in the 1970s and ’80s is that “bringing inflation back down again after it becomes ingrained in people’s expectations is very costly and almost certainly involves a recession”.

He noted that this was a real risk in “a number of other advanced economies [which] are experiencing much faster rates of wages growth”.

But not to worry. “This is an area we are watching carefully.” The Reserve Bank board is “resolute in its determination to return inflation to target, and we will do what is necessary to achieve that”.

Oh. Really? Like the smartest of the business economists, I’ve been thinking that having raised the official interest rate by 3 percentage points in eight months, Lowe may have decided he’s done enough. But this tough-guy talk hints at more to come – maybe a lot more.

One thing I am pretty sure of, however. After the caning Lowe’s been given for saying repeatedly that he didn’t expect to be raising interest rates until 2024, when he does decide he has done enough, he won’t be saying so.

To leave his options open – and pacify the urgers in the financial markets who want him to do a lot more – he’ll say it’s just a pause to see how the medicine’s going down. And add something like “the board expects to increase interest rates further over the period ahead, but it is not on a pre-set course”.

One reason Lowe doesn’t have to raise rates as far as many overpaid money-market people imagine is that with real wages having fallen in recent years, and expected to keep falling, the nation’s employers are doing his job for him.

Raise mortgage interest rates or cut real wages – whichever way you do it, the result is to put the squeeze on households, to stop them spending as much (on the things the people who cut their wages are hoping to sell them – no, doesn’t make sense to me, either).

So, we’re back to Lowe’s professed fear of a wage-price spiral. The entire under-50 population must be wondering what such a thing could be. Lowe spelt it out while answering questions after his speech.

“The issue that many central banks have been worried about – and I include us in this – is [that] this period of high inflation will lead the workforce to say: ‘Well, inflation is high, I need compensation for that’.”

“And let’s say we all accepted the idea, which [has] a natural appeal: ‘inflation is 7 per cent, I should be compensated for that in my wages’. If that were to happen, what do you think inflation would be next year? Seven per cent, plus or minus.

“And then we’ve got to get compensated for that 7 per cent, and 7 per cent. . . This is what happened in the ’70s and ’80s and ... that turned out to be a disaster,” Lowe said.

“So I know it’s very difficult for people to accept the idea that wages don’t rise with inflation. And people are experiencing a decline in real wages. That’s tough. The alternative, though, is more difficult,” he added.

This is a reasonable description of how the wage-price spiral worked in the olden days. But as a plausible risk for today, it has two glaring weaknesses.

First, it assumes that if workers decide they want a 7 per cent pay rise, bosses have no choice but to hand it over. This is fantasy land.

The plain truth is that these days, workers lack the industrial muscle to force big pay rises on employers. The best-placed workers on enterprise agreements are getting rises of 3 to 4 per cent, but some are still getting rises in the twos.

The lowest-paid quarter of workers, dependent on award wage minimums, get their rises determined annually by the Fair Work Commission – but these are granted in retrospect, not prospect. This July, a handful of them got a rise of 5.2 per cent, but most got 4.6 per cent.

The bargaining power workers had in the ’70s has been reduced by more than four decades of globalisation, technological change and wage-fixing “reform”. In 1976, 52 per cent of workers were members of a union. Now it’s down to just 12.5 per cent.

Yet another reason a wage-price spiral couldn’t happen today is that most enterprise agreements run for three years. The system prohibits me from striking for a pay rise this year higher than the one I already agreed to two years ago.

The second respect in which Lowe’s fear of a wage-price spiral rising from the dead is silly is the assumption that if workers get a 7 per cent pay rise, businesses will automatically and easily put their prices up by 7 per cent. This makes sense arithmetically only if you think that wage costs constitute the whole of businesses’ costs. In truth, the Bureau of Statistics’ input-output tables say that economy-wide, wages account for only about a quarter of total input costs.

So, on average, a 7 per cent wage rise justifies a price rise of less than 2 per cent. Since business competitors would be paying much the same, you might think any firm that turned a 2 per cent cost increase into a 7 per cent price rise would be asking to be undercut by its competitors and lose its share of the market.

Of course, such an outrageous assault on the pockets of the industry’s customers would be possible if the industry was dominated by just a few big firms. They could – and have, and do – reach an unspoken agreement to each put their prices up by the same excessive amount.

It’s clear that Lowe knows a lot about how financial markets work, but not much about labour markets. But I find it hard to believe he could be so ill-informed as not to see the weaknesses in his wage-price spiral boogeyman.

The other possibility is that what’s really worrying him is a mass outbreak of oligopolistic pricing power. Getting that back under control really could take a recession.

Monetary policy (manipulating interest rates) is no cure for market power. The only answer is stronger competition policy and tougher policing by the Australian Competition and Consumer Commission. But neither the Reserve Bank nor Treasury has had much enthusiasm for this.

Much less controversial to blame inflation on greedy workers and tell the mums and dads it’s their duty to the nation to tighten their belts and lose their jobs until the problem’s solved.

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