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？

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。

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。

Demography also includes the study of non-living objects like light bulbs and taxi cabs and buildings because these are also populations.

人口统计学还包括对非生物物体的研究，如灯泡、出租车和建筑物，因为这些也属于种群。

Demography is not destiny.

人口情况并非命运。

The other is demography.

其二是人口统计学。

Demography is a start.

人口只是一个开始。

SOME blame demography, others the recession.

有人责怪人口统计，有人归咎于经济衰退。

The main character is a man, the focal subject demography.

故事的主人公是一个男人，人口调查是聚焦的重点。

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。

They remain unconsciously wedded to 20th-century demography, ” he says.

他们仍然无意识地停留在20世纪的人口数据中。

None of this means that Europe has broken the chains of its demography.

这并不意味着欧洲挣脱了人口锁链。

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。

But the big horse-race message out of Super Tuesday is that demography is destiny.

不过这场超级星期二的大拉力赛带来的讯息却是人口决定命运。

But demography will bring profound changes, says Christopher Lockwood (interviewed here).

但人口统计会带来深刻的变化，克里斯托弗·洛克伍德(Christopher Lock wood)这样评价。

Demography counts too: as Asians are roughly half the human race, they deserve representation.

人口也是一个重要因素：亚洲有约占全人类总数近一半的人口，他们有作为表率的资格。

Some studies reckon that demography explains as much as a third of Asia's economic growth.

一些研究推测非洲经济增长的三分之一都归功于人口迁移。

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。

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。

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。

Demography, which has disguised the extent of the problem so far, will eventually exacerbate it.

人口统计掩饰了这个问题的严重程度，但最终会恶化问题。