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金融财务中级05:04economics

What Causes an Economic Recession?

经济衰退因何发生

这则 TED-Ed 动画用不列颠的「青铜衰退」开场,深入浅出地讲清了衰退的本质:供需失衡。短片系统梳理了通货膨胀、利率、债务、外部冲击、繁荣过热、群体心理乃至政策副作用等诱因,并说明它们如何环环相扣。语速中等、术语规范,是积累金融与经济学英语词汇、理解宏观经济逻辑的绝佳听力材料。

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台词(32 句)

00:06
For millennia, the people of Britain had been using bronze to make tools and jewelry, and as a currency for trade.

几千年来,不列颠的居民一直用青铜来制造工具和首饰,并把它当作交易的货币。

00:15
But around 800 BCE, that began to change: the value of bronze declined, causing social upheaval and an economic crisis— what we would call a recession today.

但大约在公元前 800 年,情况开始改变:青铜的价值下跌,引发了社会动荡和一场经济危机——也就是我们今天所说的「衰退」。

00:28
What causes recessions? This question has long been the subject of heated debate among economists, and for good reason.

是什么导致了衰退?这个问题长期以来一直是经济学家激烈争论的话题,而且不无道理。

00:36
A recession can be a mild decline in economic activity in a single country that lasts months, a long-lasting downturn with global ramifications that last years, or anything in between.

衰退可以是某个国家持续数月的轻微经济下滑,也可以是波及全球、持续数年的长期低迷,或介于两者之间的任何情况。

00:49
Complicating matters further, there are countless variables that contribute to an economy’s health, making it difficult to pinpoint specific causes.

更复杂的是,影响一国经济健康的变量数不胜数,很难精确指出具体的成因。

00:59
So it helps to start with the big picture: recessions occur when there is a negative disruption to the balance between supply and demand.

所以不妨先从大局入手:当供给与需求之间的平衡受到负面冲击时,衰退就会发生。

01:07
There’s a mismatch between how many goods people want to buy, how many products and services producers can offer, and the price of the goods and services sold, which prompts an economic decline.

人们想购买的商品数量、生产者能提供的产品和服务数量,以及这些商品和服务的售价之间出现了错配,从而引发经济下滑。

01:19
An economy’s relationship between supply and demand is reflected in its inflation rates and interest rates.

一国经济中供需之间的关系,会体现在它的通货膨胀率和利率上。

01:27
Inflation happens when goods and services get more expensive. Put another way, the value of money decreases.

当商品和服务变得更贵时,就发生了通货膨胀。换句话说,就是货币贬值了。

01:35
Still, inflation isn’t necessarily a bad thing. In fact, a low inflation rate is thought to encourage economic activity.

不过,通胀未必是坏事。事实上,人们普遍认为,低通胀率能够刺激经济活动。

01:43
But high inflation that isn’t accompanied with high demand can both cause problems for an economy and eventually lead to a recession.

但如果高通胀没有旺盛需求相伴,就会给经济带来麻烦,并最终导致衰退。

01:52
Interest rates, meanwhile, reflect the cost of taking on debt for individuals and companies. The rate is typically an annual percentage of a loan that borrowers pay to their creditors until the loan is repaid.

而利率反映的则是个人和企业举债的成本。利率通常是贷款的年化百分比,借款人要按此向债权人支付,直到还清贷款为止。

02:05
Low interest rates mean that companies can afford to borrow more money, which they can use to invest in more projects.

低利率意味着企业能负担得起借更多的钱,并用这些钱去投资更多项目。

02:12
High interest rates, meanwhile, increase costs for producers and consumers, slowing economic activity.

而高利率则会抬高生产者和消费者的成本,令经济活动放缓。

02:19
Fluctuations in inflation and interest rates can give us insight into the health of the economy, but what causes these fluctuations in the first place?

通胀和利率的波动能让我们洞察经济的健康状况,但这些波动最初又是由什么引起的呢?

02:29
The most obvious causes are shocks like natural disaster, war, and geopolitical factors.

最明显的原因,是自然灾害、战争和地缘政治因素这类冲击。

02:35
An earthquake, for example, can destroy the infrastructure needed to produce important commodities such as oil.

比如一场地震,可能摧毁生产石油等重要大宗商品所需的基础设施。

02:42
That forces the supply side of the economy to charge more for products that use oil, discouraging demand and potentially prompting a recession.

这会迫使经济中的供给方对用到石油的产品提价,从而抑制需求,并可能引发衰退。

02:51
But some recessions occur in times of economic prosperity— possibly even because of economic prosperity.

但有些衰退恰恰发生在经济繁荣之时——甚至可能正是因为繁荣才发生。

02:59
Some economists believe that business activity from a market’s expansion can occasionally reach an unsustainable level.

一些经济学家认为,市场扩张带来的商业活动,有时会达到难以为继的水平。

03:06
For example, corporations and consumers may borrow more money with the assumption that economic growth will help them handle the added burden.

例如,企业和消费者可能会借入更多的钱,以为经济增长能帮他们扛住这份额外的负担。

03:14
But if the economy doesn’t grow as quickly as expected, they may end up with more debt than they can manage.

但如果经济增长没有预期的那么快,他们最终背上的债务可能就会超出自己的偿还能力。

03:21
To pay it off, they’ll have to redirect funds from other activities, reducing business activity.

为了还债,他们不得不把原本用于其他活动的资金挪过来,从而减少了商业活动。

03:27
Psychology can also contribute to a recession. Fear of a recession can become a self-fulfilling prophecy if it causes people to pull back investing and spending.

心理因素也可能助推衰退。对衰退的恐惧一旦让人们收缩投资和消费,就可能变成一个自我实现的预言。

03:38
In response, producers might cut operating costs to help weather the expected decline in demand.

作为应对,生产者可能会削减运营成本,以熬过预期中的需求下滑。

03:44
That can lead to a vicious cycle as cost cuts eventually lower wages, leading to even lower demand.

这会引发恶性循环:削减成本最终会压低工资,进而导致需求进一步萎缩。

03:52
Even policy designed to help prevent recessions can contribute. When times are tough, governments and central banks may print money, increase spending, and lower central bank interest rates.

甚至连旨在预防衰退的政策也可能成为诱因。经济艰难时,政府和央行可能会印钞、增加支出,并下调央行利率。

04:05
Smaller lenders can in turn lower their interest rates, effectively making debt “cheaper” to boost spending.

于是较小的放贷机构也会随之下调利率,等于让债务变得更「便宜」,以刺激消费。

04:12
But these policies are not sustainable and eventually need to be reversed to prevent excessive inflation.

但这些政策难以长期维持,最终必须逆转,以防止通胀过高。

04:18
That can cause a recession if people have become too reliant on cheap debt and government stimulus.

如果人们已经过度依赖廉价债务和政府刺激,这种逆转就可能引发衰退。

04:25
The Bronze recession in Britain eventually ended when the adoption of iron helped revolutionize farming and food production.

不列颠的那场「青铜衰退」,最终随着铁器的普及而结束——铁器给农业和粮食生产带来了革命性的变化。

04:33
Modern markets are more complex, making today’s recessions far more difficult to navigate. But each recession provides new data to help anticipate and respond to future recessions more effectively.

现代市场更为复杂,令今天的衰退更加难以驾驭。但每一次衰退都提供了新的数据,帮助我们更有效地预判和应对未来的衰退。