Two big tipping points in 2019 went largely unnoticed


The improvement has been especially impressive so far this century – global life expectancy jumped by 5 years between 2000 and 2015, the fastest increase since the 1960s. (The biggest regional gain was in Africa where life expectancy climbed by 9.4 years in that period to 60 years.)

The traditional population pyramid – with a small number of old people at the top and a large number of young people at the bottom – is starting to look more like a rectangle in most nations as age cohorts of about equal size stretch out across the life span.

By 2030, about two-thirds of the world’s middle class consumers will reside in Asia.Credit:iStock

A second tipping point has to do with wealth: Kharas and Fengler argue half the world’s population, or 3.8 billion people, can now be considered middle class or richer. Another 3.8 billion people still live in households that are poor or vulnerable to poverty.

The economists define the global middle class as households which spend more than $US11 per person per day (Dr Kharas was involved in developing this definition for the Organisation for Economic and Development in 2010).

While many people in that category have a lower standard of living than what Australians might consider middle class, they do have discretionary income that can be used to buy consumer goods such as motorcycles, refrigerators or washing machines.

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Once a family reaches that level of spending power they can afford to go to movies or dine out and invest more in education and healthcare.

What’s more, there’s evidence new entrants to the middle class will be happier than those still trapped in poverty.

Kharas and Fengler reckon the global middle class is expanding at about four people per second. That’s a combination of those born into existing middle class households (one person per second) and those graduating into it as a result of economic growth in their country (three people per second).

By 2030 the world “will be mostly rich and largely old”.

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Over the next decade 800 million people above the age of 30 will be added but there will be 100 million fewer people under the age of 30. In the same period 1.8 billion more people will move into the ranks of the global middle class while the number of poor and vulnerable will shrink by 1.1 billion.

“From now on, the world will have ever fewer poor people, about the same number of youth and young adults, and many more old and rich people,” the economists write.

A world with a middle class majority will face new challenges. One obvious example is the threat of higher greenhouse gas emissions caused by increased consumption.

“A majority middle-class world could have important effects on carbon emissions and climate change,” Kharas has warned.

New technologies and effective government policies will be needed to limit carbon footprints, especially in cities.

The growing global middle class will also reshape politics as it pressures governments to perform better.

The striking global improvements in longevity and incomes highlighted by Kharas and Fengler get little attention in wealthy nations such as Australia.

When the polling firm YouGov recently asked people from 17 countries whether they thought the world was getting better or worse, very few gave a positive answer. In Australia, only 3 per cent said the world was getting better, a similar share to France, Great Britain, Germany and Singapore.

And yet the rapid growth of the global middle class is especially important for Australia.

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By 2030 about two-thirds of that group will live on our doorstep in Asia. By then the middle-class markets of  China and India are expected to be comparable in size to America’s middle-class market.

As incomes grow there will be added demand from Asian consumers for many goods and services Australia is good at delivering, such as agricultural produce, tourism, education, healthcare and professional activities.

Making the most of that opportunity won’t be easy. It will require Australians to become much more familiar with Asian languages, societies and cultures. But if we get it right, Asia’s ballooning middle class has the potential to drive Australia’s exports, and economic growth, for many decades.

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