首页
登录
职称英语
Back in 1975, economists plotted rising life expectancies against countries’
Back in 1975, economists plotted rising life expectancies against countries’
游客
2024-01-24
7
管理
问题
Back in 1975, economists plotted rising life expectancies against countries’ wealth, and concluded that wealth itself increases longevity. It seemed self-evident: everything people need to be healthy—from food to medical care— costs money.
But soon it emerged that the data didn’t always fit that theory. Economic upturns didn’t always mean longer lives. In addition, for reasons that weren’t clear, a given gain in gross domestic product (GDP) caused increasingly higher gains in life expectancy over time, as though it was becoming cheaper to add years of life. Moreover, in the 1980s researchers found gains in literacy were associated with greater increases in life expectancy than gains in wealth were. Finally, the more educated people in any country tend to live longer than their less educated fellow citizens. But such people also tend to be wealthier, so it has been difficult to untangle which factor is increasing lifespan.
Wolfgang Lutz and his colleagues have now done that by compiling average data on GDP per person, lifespans, and years of education from 174 countries, dating from 1970 to 2010. They found that, just as in 1975, wealth correlated with longevity. But the correlation between longevity and years of schooling was closer, with a direct relationship that did not change over time, the way wealth does. When the team put both these factors into the same mathematical model, they found that differences in education closely predicted differences in life expectancy, while changes in wealth barely mattered.
Lutz argues that because schooling happens many years before a person has attained their life expectancy, this correlation reflects cause: better education drives longer life. It also tends to lead to more wealth, which is why wealth and longevity are also correlated. But what is important, says Lutz, is that wealth does not seem to be driving longevity, as experts thought—in fact, education is driving both of them.
He thinks this is because education permanently improves a person’s cognitive abilities, allowing better planning and self-control throughout the rest of their life. This idea is supported by the fact that people who are more intelligent appear to live longer. [br] What did economists conclude about longevity in 1975?
选项
A、Literacy influenced longevity more than wealth did.
B、Wealth itself could increase life expectancy.
C、Economic growth didn’t always mean longer life.
D、A given growth in GDP caused higher gains in longevity.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3390090.html
相关试题推荐
Threekeyfactsaboutrisingsealevelsneedtobepointedouttotheworld’
Threekeyfactsaboutrisingsealevelsneedtobepointedouttotheworld’
Threekeyfactsaboutrisingsealevelsneedtobepointedouttotheworld’
Threekeyfactsaboutrisingsealevelsneedtobepointedouttotheworld’
Threekeyfactsaboutrisingsealevelsneedtobepointedouttotheworld’
Forcenturies,inthecountriesofsouthandSoutheastAsiatheelephanthas
Forcenturies,inthecountriesofsouthandSoutheastAsiatheelephanthas
Likeaneedleclimbingupabathroomscale,thenumberkeepsrising.In1991
[originaltext]M:Doyouthinkthere’sdiscriminationagainstwomeninEnglandto
[originaltext]M:Doyouthinkthere’sdiscriminationagainstwomeninEnglandto
随机试题
采用内表面光滑的非金属风管进行机械排烟时,现行国家标准规定的最高排烟风速为下列哪
某企业食堂有多个档口供员工选择餐食,员工使用现金进行支付。为了更方便员工就餐,现
根据《软件文档管理指南GB/T16680-1996》,关于软件文档的归档工作,
混凝土面板堆石填筑结束后,应检查各种石料()。A.风化程度 B.级配情况
区别绒毛膜癌与侵蚀性葡萄胎最主要的依据是A.有无转移病灶 B.距葡萄胎排空后时
(2019年真题)2008年国际金融危机前,英国“三头监管体制”中,负责对金融机
下列各项中,属于金融期货性质的有()。 Ⅰ.买卖双方的权利与义务是对称的
与2006年7月相比,2007年同期哪个港口货运吞吐量的同比增长率与沿海港口
阅读下面材料.根据要求写作文。 一位国王总觉得自己不幸福,就派人四处去找一个感
关于PCI考评,说法正确的有()。A.通过整体核算的形式进行 B.适用于
最新回复
(
0
)