China has seen a significant increase in the size and influence of its middle class, but an ageing population is set to hinder the nation’s growth. In the US, the size of the middle class fell from 61 per cent of the population in 1971 to 50 per cent in 2022 amid flat wage growth and a drop in university enrolments. This Post story was reported by Ralph Jennings and He Huifeng and narrated by James Aitken.

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