In the crowded car market, considering age ratio of consumers, the ratio of youth is more than half.

在拥挤的车市里，消费者的年龄构成，年轻人的比例竟然过半。

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Whether the age ratio is a prophecy or fallacy, the importance of pension activity to markets is clear.

无论年龄比例是预言还是谬论，退休金活动对于市场的重要性显而易见。

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When a country is ageing (median age above 40), it again has a high dependency ratio, this time because of old people.

而当一个国家趋向老迈时(中位年龄在40岁以上)，依赖性比例仍然高，这是因为老人多的原故。

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But by 2050, China's old-age ratio will have risen fourfold to 42, surpassing America's.

ECONOMIST: Demography

That means China's old-age dependency ratio (which compares the number of people over 65 with those aged 15 to 64) will soar.

ECONOMIST: Demography

Certainly productivity increases have softened the ill effects of this trend, but with some 77 million Baby Boomers at or approaching retirement age, the ratio will drop even more, to an estimated 2.1 workers for each retiree.

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