"The broader demographic story won't bite fully on China's growth until both of these sources of slack have been exhausted," he said.According to Paul Cheung, Singapore's former chief statistician, China has "plenty of manpower" and "a lot of lead time" to manage the demographic challenge."They are not in a doomsday scenario right away," Prof Cheung said.He also pointed to how countries like Japan and Singapore had managed to provide a safety net for their ageing citizenry while maintaining relative economic stability.

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