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
2023-06-26
55
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/2783471.html
相关试题推荐
Directions:Nowadaysmigratingtoforeigncountrieshasbecomeapopulartre
[originaltext][22]Anelderlywomanyesterdaymadealegalclaimagainstad
[originaltext][22]Anelderlywomanyesterdaymadealegalclaimagainstad
[originaltext][21]Oneofthecomplaintsofcityresidents,notsurprisingly
[originaltext][21]Oneofthecomplaintsofcityresidents,notsurprisingly
Threekeyfactsaboutrisingsealevelsneedtobepointedouttotheworld’
Threekeyfactsaboutrisingsealevelsneedtobepointedouttotheworld’
Threekeyfactsaboutrisingsealevelsneedtobepointedouttotheworld’
Forcenturies,inthecountriesofsouthandSoutheastAsiatheelephanthas
Forcenturies,inthecountriesofsouthandSoutheastAsiatheelephanthas
随机试题
[originaltext]It’sanotherswelteringdayinthesavannahwoodlandofnorth
IntroductiontoEducationinEnglandEducationisimpor
Cultureisactivityofthought,andreceptivenesstobeautyandhumanefeeli
下列不属于产品保持或成熟期财务指标的是()。A.市场占有率 B.产品类别利润
下列不属于原核细胞型微生物的是A.衣原体 B.细菌 C.支原体 D.放线菌
下列不属于龙胆草适应证的是A、阴肿阴痒 B、黄疸尿赤 C、热极生风 D、带
统计的基本任务是提供有关经济社会发展情况的统计意见,实行统计监督。()
()属于行为导向型的主观考评方法。A.关健事件法 B.合成考评法 C.选择
老年男性尿路感染最主要的易感因素是( )。A.尿流不通畅 B.持续导尿 C
甲股份有限公司(以下简称“甲公司”)为A股上市公司。2015年8月3日,乙有限责
最新回复
(
0
)