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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Don't be so sure we'll soon have inflation back to normal

Right now, we’re focused on getting inflation back under control and on the pain it’s causing. But it’s started slowing, with luck we’ll avoid a recession, and before long the cost of living won’t be such a worry. All will be back to normal. Is that what you think? Don’t be so sure.

There are reasons to expect that various factors will be disrupting the economy and causing prices to jump, making it hard for the Reserve Bank to keep inflation steady in its 2 per cent to 3 per cent target range.

Departing RBA governor Dr Philip Lowe warned about this late last year, and the Nobel Laureate Michael Spence, of Stanford University, has given a similar warning.

A big part of the recent surge in prices came from disruptions caused by the pandemic and the invasion of Ukraine. Such disruptions to the supply (production) side of the economy are unusual.

But Lowe and Spence warn that they’re likely to become much more common.

For about the past three decades, it was relatively easy for the Reserve and other rich-country central banks to keep the rate of inflation low and reasonably stable.

You could assume that the supply side of the economy was just sitting in the background, producing a few percentage points more goods and services each year, in line with the growth in the working population, business investment and productivity improvement.

So it was just a matter of using interest rates to manage the demand for goods and services through the undulations of the business cycle.

When households’ demand grew a bit faster than the growth in supply, you raised interest rates to discourage spending. When households’ demand was weaker than supply, you cut interest rates to encourage spending.

It was all so easy that central banks congratulated themselves for the mastery with which they’d been able to keep things on an even keel.

In truth, they were getting more help than they knew from a structural change – the growing globalisation of the world’s economies as reduced barriers to trade and foreign investment increased the trade and money flows between the developed and developing economies.

The steady growth in trade in raw materials, components and manufactured goods added to the production capacity available to the rich economies. Oversimplifying, China (and, in truth, the many emerging economies it traded with) became the global centre of manufacturing.

This huge increase in the world’s production capacity – supply – kept downward pressure on the prices of goods around the world, thus making it easy to keep inflation low.

Over time, however – and rightly so – the spare capacity was reduced as the workers in developing countries became better paid and able to consume a bigger share of world production.

Then came the pandemic and its almost instantaneous spread around the world – itself a product of globalisation. But no sooner did the threat from the virus recede than we – and the other rich countries – were hit by the worst bout of inflation in 30 years or so.

Why? Ostensibly, because of the pandemic and the consequences of our efforts to limit the spread of the virus by locking down the economy.

People all over the world, locked in their homes, spent like mad on goods they could buy online. Pretty soon there was a shortage of many goods, and a shortage of ships and shipping containers to move those goods from where they were made to where the customers were.

Then there were the price rises caused by Russia’s war on Ukraine and by the rich economies’ trade sanctions on Russia’s oil and gas. So, unusually, disruptions to supply – temporary, we hope – are a big part of the recent inflation surge.

But, the central bankers insist, the excessive zeal with which we used government spending and interest-rate cuts to protect the economy and employment during the lockdowns has left us also with excess demand for goods and services.

Not to worry. The budget surplus and dramatic reversal of interest rates will soon fix that. Whatever damage we end up doing to households, workers and businesses, demand will be back in its box and not pushing up prices.

Which brings us to the point. It’s clear to Lowe, Spence and others that disruptions to the supply side of the economy won’t be going away.

For a start, the process of globalisation, which did so much to keep inflation low, is now reversing. The disruption to supply chains during the pandemic is prompting countries to move to arrangements that are more flexible, but more costly.

The United States’ rivalry with China, and the increasing imposition of trade sanctions on countries of whose behaviour we disapprove, may move us in the direction of trading with countries we like, not those offering the best deal. If so, the costs of supply increase.

Next, the ageing of the population, which is continuing in the rich countries and spreading to China and elsewhere. This reduction in the share of the population of working age reduces the supply of people able to produce goods and services while the demand for goods and services keeps growing. Result: another source of upward pressure on prices.

And not forgetting climate change. One source of higher prices will be hiccups in the transition to renewable energy. No new coal and gas-fired power stations are being built, but the existing generators may wear out before we’ve got enough renewable energy, battery storage and expanded grid to take their place.

More directly, the greater frequency of extreme weather events is already regularly disrupting the production of fruit and vegetables, sending prices shooting up.

Drought prompts graziers to send more animals to market, causing meat prices to fall, but when the drought breaks, and they start rebuilding their herds, prices shoot up.

Put this together and it suggests we’ll have the supply side exerting steady underlying – “structural” – pressure on prices, as well as frequent adverse shocks to supply. Keeping inflation in the target range is likely to be a continuing struggle.

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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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Too soon to say how hard virus will hit economy

To judge by the gyrations of the world’s sharemarkets, the coronavirus has us either off to hell in a handcart or the markets are panicking about something bad that’s happening, but they’re not sure what’s happening, how long it will last or how bad it will end up being. I’d go with the latter.

So would Reserve Bank deputy governor Dr Guy Debelle. He said in a speech this week that there’s been a large increase in the financial markets’ "risk aversion and uncertainty".

"The virus is going to have a material economic impact but it is not clear how large that will be. That makes it difficult for the market to reprice financial assets," he said.

That’s central-bankerspeak for "they’ve got no idea what will happen". Which is hardly surprising, since no one else has, either. More from Debelle’s speech as we go.

But understand this. Farr’s law of epidemics, developed in the mid-19th century, says that the number of cases of a new disease rises and then falls in a roughly symmetrical pattern, approximating a bell-shaped curve.

Depending on how quickly the disease spreads, the bell can have a steep rise and fall or a shallow one. Epidemiologists seek to make the bell as shallow as possible by slowing the disease’s spread. This allows the health system to avoid being overwhelmed – reducing the likelihood of panic and chaos, and making it more likely those who most need medical attention get it.

In theory, it allows more time for the development of a vaccine or useful drugs, but the World Health Organisation has said it will take about 18 months for a coronavirus vaccine to be widely available.

At this stage, the main way of slowing the spread is "social distancing" – reducing the contact between people by cancelling sporting events, closing schools or workplaces or ordering people to work at home. Of course, many people are doing their own social distancing by staying away from restaurants and bars.

The virus has now arrived in most countries. Its spread is well advanced in China, Iran, Italy and South Korea, but much less so in Singapore and Hong Kong, where the authorities got in earlier with their social distancing measures.

Such measures, however, cause considerable inconvenience, especially to parents, and disruption to the economy – both to the production of goods and, more particularly, services, and to their purchase and consumption. Not to mention the associated loss of income.

Some of this economic activity may merely be postponed – so that there’s a big catch-up once the epidemic subsides. But much of it – particularly the performance of services (if you miss a restaurant meal or a haircut you don’t catch up by having two) – will be lost forever.

Obviously, China is central to the story for both the world economy and ours. China’s economy was hit hard by the virus and the drastic but belated measures to slow its spread, though the number of cases does seem to have passed its peak and rapidly declined. Debelle said "the Chinese economy is now only gradually returning to normal. Even as this occurs, it is very uncertain how long it will take to repair the severe disruption to supply chains."

The globalisation of the world economy in recent decades is a major part of the story of this virus. It means people in any part of the world are almost instantly informed about unusual things happening anywhere else in the world. It’s good to be better informed, but sometimes it can be frightening.

For another thing, globalisation has greatly increased the trade between countries, particularly trade in services, such as tourism and education. Trade in services has been greatly facilitated by the emergence of cheap air travel.

It’s all the overseas air travel everyone does these days that has caused epidemics that break out in one part of the world to spread around the world within a few weeks. More pandemics has become one of the big downsides of globalisation.

And when governments try to limit the spread of a virus by banning the entry of people from countries where the virus is known to have spread widely, this disrupts and damages those of that country’s industries who sell their services to foreign visitors.

(When the government stops you supplying a service to willing buyers, economists classify this as a shock to the "supply side" of the economy. When your sales fall because customers become more reluctant to buy whatever you’re selling, that’s a "demand-side shock" to the economy.)

Our imposition of a ban on non-residents entering Australia from China has hit our tourism industry and our universities. Debelle said that, since January, inbound airline capacity from China has fallen by 90 per cent. Until recently, he said, tourist arrivals from other countries had held up reasonably well, "but that may no longer be true".

The Reserve estimates that Australia’s services exports will decline by at least 10 per cent in the March quarter, roughly evenly split between tourism and education. Since services exports account for 5 per cent of gross domestic product, this suggests the travel ban will subtract 0.5 percentage points from whatever growth comes from other parts of the economy during the quarter.

Another consequence of growing globalisation is the emergence of "global supply chains" – the practice of multinational companies manufacturing the components of their products in different countries, before assembling them in one developing country and exporting them around the world.

China is at the heart of the supply chains for many products. So Debelle’s remark about the delay in repairing "the severe disruption to supply chains" is ominous. The Reserve’s business contacts tell it supply chain disruptions are already affecting the construction and retail industries – but there’s sure to be more of this "supply-side shock" to come.

And the shock to demand as - whether through virus-avoidance, necessity or uncertainty - consumers avoid spending money, has a long way to run. But, Debelle said, it’s "just too uncertain to assess the impact of the virus beyond the March quarter".

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