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
2024-01-27
28
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 Wolfgang Lutz and his colleagues find?
选项
A、Relationship between education and longevity changed over time.
B、Longevity and education were more closely correlated.
C、Differences in wealth predicted differences in longevity.
D、Wealth and longevity did not have any correlation.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3399737.html
相关试题推荐
[originaltext]Oilissooversuppliedgloballythatcountriesarerunningou
[originaltext]With32countriescompetinginthemonth-longWorldCup,it’s
[originaltext]With32countriescompetinginthemonth-longWorldCup,it’s
[originaltext]Tradebetweendifferentcountriesisoneofthemostimportan
Inthesecondhalfofthetwentiethcentury,manycountriesoftheSouth(发展中国
Inthesecondhalfofthetwentiethcentury,manycountriesoftheSouth(发展中国
[originaltext]Andorra,oneofthesmallestcountriesintheworld,islocat
[originaltext]Andorra,oneofthesmallestcountriesintheworld,islocat
Thenumberofpostgraduatestudentstravellingfromnon-EUcountriestostud
Thenumberofpostgraduatestudentstravellingfromnon-EUcountriestostud
随机试题
Thispartistotestyourabilitytodopracticalwriting.Youarerequiredtow
[originaltext]Conversationsarereallykindofinteresting.Iguessit’sa
使用ping命令可以进行网络检测,在进行一系列检测时,按照由近及远原则,首先执行
加强腹股沟管前壁的疝修补术有A.McVay法 B.Bassini法 C.Ha
A.软坚 B.纳气 C.利尿 D.凉血 E.明目生牡蛎除平肝潜阳外,还具
粉末中显微特征有分枝状石细胞、草酸钙方晶、晶鞘纤维的药材是A:桑白皮B:厚朴
《国家中长期教育改革的发展规划纲要(2010--2020年)》提出,把()作
某柱下独立基础的底面尺寸为2.5m×2.5m,基础埋深2.0m,上部结构传至基础
公司经营者也是利益最大化的追求者,其具体目标与股东不尽一致。下列各项不属于公司经
下列属于过热器损坏原因的有( )。A.锅炉满水、汽水共腾或汽水分离效果差而造成过
最新回复
(
0
)