On one hand, a low dependency ratio can generate more output and hence export more.
一方面，低抚养比会造成更多的产出，从而增加出口。
Dependency ratio Proportion of children and old people in a population in comparison with everyone else.
抚养率指在总人口中，儿童和老人与其他人口的比率。
In rural areas the dependency ratio will rise far more steeply than in cities as young people move out and the elderly stay behind.
由于农村地区的年轻人移居城镇，把老年人滞留在农村，农村地区的抚养系数将会比城市的抚养系数上升幅度更大。
When fertility is high and a country is young (median age below 20), there are huge numbers of children and the overall dependency ratio is high.
一个国家生育率高，表示这个国家很年轻（中位年龄在20岁以下），小孩数量庞大，依赖性比例相当高；
More children would increase the dependency ratio until they were old enough to join the workforce , but reduce labour shortages in the long term.
孩子多了，在他们长大到有劳动能力之前会增加抚养比率，但是从长远的眼光看会减少劳动力短缺。
The OECD expects Japan’s dependency ratio (of working-age to retirement-age citizens) to fall to 1.2 by 2050 and Germany’s to 1.6; Britain’s, by contrast, would be a relatively healthy 2.4.
OECD（经济合作与发展组织）预计到2050年日本的抚养比率（工作人口与退休人口的比率）会将降至1.2，德国则降至1.6；相反，英国会在2.4，相当稳健。
The OECD expects Japan’s dependency ratio (of working-age to retirement-age citizens) to fall to 1.2 by 2050 and Germany’s to 1.6; Britain’s, by contrast, would be a relatively healthy 2.4.
OECD（经济合作与发展组织）预计到2050年日本的抚养比率（工作人口与退休人口的比率）会将降至1.2，德国则降至1.6；相反，英国会在2.4，相当稳健。
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