I see demography as a central subject related to economics.
我认为人口统计学是与经济学相关的核心学科。
Why should you consider taking a course in demography in college?
为什么你应该考虑在大学里修一门人口学的课程呢？
Models from economics and demography become the definitive tools for examining the financial base of social security.
来自经济学和人口学的模型成为检验社会保障财政基础的最权威工具。
其二是人口统计学。
SOME blame demography, others the recession.
有人责怪人口统计，有人归咎于经济衰退。
The growth optimists point to India's favourable demography.
对增长持乐观态度的人们认为印度的优势在于其人口结构。
Now demography and productivity are pushing in the same direction.
现在，人口统计学和生产率形成了合力。
Such an abrupt change is hard to explain by demography alone, however.
如此剧烈的变化是很难仅仅用人口统计学解释的。
For most of human history economic power has been determined by demography.
对于大部分人类历史来说，经济实力取决于人口。
But even if demography guarantees nothing, it can make growth harder or easier.
但是即使人口结构本身不能保证什么，它还是可以让经济增长变得更困难，或更轻松。
It was once a rule of demography that people have fewer children as their countries get richer.
人口统计学上曾经有一条规律：国家越富裕，人们就越少生育。
Populations can rise while fertility declines because of inertia, which matters a lot in demography.
根据人口统计学，生育率降低时人口因为惯性仍然会增长。
Commercial property that flows with the tide of demography has also tended to do better than the rest.
与其他地产相比，随人口趋势波动的商业地产也表现得更好。
From then on, some believe, demography will seriously aggravate Japan's other d-words-debt, deficits and deflation.
一些人认为，自那以后日本的人口问题将使其债务、赤字和通货紧缩问题变得更加严重(可以根据英文首字母将其称为3d问题)。
On some calculations, demography accounted for about a third of East Asia’s phenomenal growth over the past 30 years.
一些计算表明，在东亚过去30年超乎常规的经济增长中，由人口变化带来的增长要占三分之一。
It was once a rule of demography that people have fewer children as their countries get richer. That rule no longer holds true.
人口统计学认为：一个国家的人越富裕，他们的孩子就越少，现在看来，也不尽其然。
Mr Motani argues that deflation in Japan is not so much a monetary problem as a structural one linked to bad business decisions and demography.
Motani认为与其说日本的通货紧缩是一个货币问题的话，不如说是一个与错误的商业决策和人口统计学有关的结构性问题。
By far the biggest difficulty facing the arabs-and the main item in the catalogue of socio-economic woes submitted as evidence of looming upheaval-is demography.
到目前为止阿拉伯面临的最大困难——同时也是为证明日渐逼近的巨变而提交的社会经济问题目录中的最主要项目——就是人口统计学的问题。
Facebook generates most of its revenue from targeted advertisements based on users' demography and interests, so the more data users share publicly the more money it can mint from ads.
基于用户人口统计学和兴趣的目标广告是Facebook收入的主要来源。所以用户公开越多的数据，网站就能赚到更多的钱。
人口情况并非命运。
人口只是一个开始。
Demography, though, is not only about economics.
不过，人口学不仅仅只包括经济层面。
Demography gives you the tools to understand and to address these problems.
人口统计学为你提供了理解和解决这些问题的工具。
Demography makes it harder for people who start at the bottom of the ladder to climb up it.
人口问题已经让从阶梯底层开始的人很难爬上去。
Demography makes it harder for people who start at the bottom of the ladder to climb up it.
人口问题已经让从阶梯底层开始的人很难爬上去。
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