Bankers and consultants have long touted the opportunities of emerging Asia’s rapidly expanding middle classes to their clients. As incomes have risen, foreign direct investment has duly flooded in, fuelling further growth. But in recent years, the momentum behind the Asian consumer has been slowing. The dual economic shocks of the Covid-19 pandemic and Russia’s invasion of Ukraine, which pushed up food and energy prices, hit households’ disposable incomes. Distressed borrowing and a dearth of well-paying jobs hindered the recovery. The White House’s aggressive protectionist agenda will be yet another setback for the region’s export-orientated industrial economies.

Since 2004, developing Asia has added close to 200mn households to its middle class, according to research by Oxford Economics (defined as those with disposable income between $20,000 to $70,000 per year). A significant chunk of that rise has been driven by China and India, the world’s most populous nations. But in both countries, consumers are now struggling. In China, households are still haunted by a real estate crash in 2021, triggered by loose credit and overzealous developers. In India, middle earners have taken on hefty unsecured loans, partly to bridge a rise in the post-pandemic cost of living. Many are now struggling to repay their debt, as the Financial Times reported this week. China and India are also grappling with high youth unemployment.

But the strains on Asia’s new middle classes are broad-based. In Indonesia the number of people considered to be middle class by its government has declined by a fifth over the past six years. Economists reckon the nation’s over-reliance on the commodities sector, which has tended to produce poorly paid work, is partly to blame. In Thailand, the authorities are desperately trying to reduce the burden of household debt which, at around 90 per cent of GDP, is among the highest in the region.