This article discusses the concept of the low fertility and calculates the value of the current replacement-level fertility in China.

本文讨论了低生育水平的内涵，计算了目前中国更替水平的数值。

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The reason is that widening replacement-level fertility means population growth is slowing down anyway.

ECONOMIST: Lower fertility is changing the world for the better

France and most of the Nordic countries have embraced such policies and been rewarded with a rise in fertility close to replacement level.

ECONOMIST: Most of the rich world is short of babies

The odd ones out are America and Britain, which both have lots of women at work and fertility rates close to replacement level (with immigration making up the rest).

ECONOMIST: Most of the rich world is short of babies