The world’s second-most-populous nation could shed the equivalent of the entire French population within a decade, according to projections by New York-based research firm Rhodium Group. A net decline of roughly sixty million people would depress labour productivity and domestic consumption most acutely in the wealthy coastal provinces that have propelled China’s four-decade economic miracle. Already, fiscal transfers to social security funds have swelled to a record 2.9 trillion yuan last year—more than a tenth of general budget expenditure—and are set to climb further as a shrinking cohort of young families fails to offset the rising ranks of pensioners. Viewed from Hong Kong, where data on China’s regional disparities is closely parsed, the demographic stress is redrawing the map of economic power in real time.

That internal rebalancing is nowhere more visible than in the intensifying duel between Guangdong and Jiangsu. Each boasts a gross domestic product comparable to G7 members Italy or Canada, and for decades Guangdong has reigned as China’s top provincial economy, its export-oriented Pearl River Delta a byword for breakneck industrialisation. Yet Jiangsu has been closing the gap, outpacing the national growth rate in the first quarter and carving out a niche in strategic emerging sectors. Analysts in London suggest the rivalry is less about a simple change of guard than about whether a province less dependent on an ageing, low-cost workforce can sustain momentum where Guangdong’s traditional model is faltering.

Against this backdrop, the rise of Chinese consumer brands illustrates both the ambition and the vulnerability of the country’s homegrown champions. Anta, founded by a teenage dropout who hawked 600 pairs of shoes in Beijing in the late 1980s, has vaulted onto the global stage by assembling a stable of premium labels including Arc’teryx, Salomon and a recent stake in Puma, setting itself up as a direct challenger to Nike and Adidas. The narrative of a plucky upstart conquering world markets, however, collides with the reality of a domestic consumer base that is beginning to shrink in absolute terms. If coastal metropolises from Shanghai to Guangzhou see their populations dwindle, the spending power that fuels brands such as Anta will erode just as they seek to break into mature foreign markets.

Observers in Moscow, where Russian media have relayed the Rhodium findings, note that the demographic squeeze also exposes the long-ignored costs of China’s economic ascent. A guest commentary in Zurich has drawn attention to the lot of the ordinary Chinese worker, pointing out that even as incomes shot up during the liberalisation era, rampant hiring in rural factories raised early alarm bells among party ideologues about the exploitation Marx decried. The persistent reliance on low labour costs, which let coastal exporters flood global markets, now confronts a structural reckoning: a dwindling workforce will push wages up or accelerate automation, neither of which is painless for a society with a patchy social safety net.

From Washington, the demographic trend is being watched less for its humanitarian dimensions than for its capacity to reshape trade and supply chains. If China’s manufacturing heartland loses its demographic dividend faster than expected, multinationals may accelerate diversification to South and Southeast Asia. Yet Beijing is not standing still. Jiangsu’s pivot to higher-value industries hints at a policy bet: that innovation and productivity gains can offset a declining headcount. Whether that gamble succeeds will determine not just whether Anta overtakes Nike, but whether China’s entire growth model can survive the quiet, inexorable departure of millions of citizens it once seemed to have in limitless supply.