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
60
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/2783469.html
相关试题推荐
元曲的兴起对于中国民族诗歌的发展和文化的繁荣有着深远的影响。TherisingofYuanoperahasgreatinfluencesont
[originaltext][22]Anelderlywomanyesterdaymadealegalclaimagainstad
[originaltext][22]Anelderlywomanyesterdaymadealegalclaimagainstad
[originaltext][21]Oneofthecomplaintsofcityresidents,notsurprisingly
Threekeyfactsaboutrisingsealevelsneedtobepointedouttotheworld’
Threekeyfactsaboutrisingsealevelsneedtobepointedouttotheworld’
Forcenturies,inthecountriesofsouthandSoutheastAsiatheelephanthas
Forcenturies,inthecountriesofsouthandSoutheastAsiatheelephanthas
Forcenturies,inthecountriesofsouthandSoutheastAsiatheelephanthas
Likeaneedleclimbingupabathroomscale,thenumberkeepsrising.In1991
随机试题
Themanhaslittletrouble___________thetiresofhiscar.A、tofixB、fixC、fixi
PARINGONCAMPUSApermitisrequiredforallstudentsw
Women-centeredHistoryInthepast,mostpeoplebelievedthatthecontributions
[originaltext]M:Secondthingyoujustmentionedinnetworking,forthosekids
()股指期货没有每日价格最大波动限制。A、新加坡交易的日经225指数期货B、香港恒生指数期货C、英国的FT—SE100指数D、沪深300股指期货
不从眶上裂中经过的颅神经是A.第Ⅴ对 B.第Ⅲ对 C.第Ⅳ对 D.第Ⅱ对
哪一项是婴儿消化系统解剖生理特点A.8个月后出现"生理性流涎" B.出生时胰脂
下列说法中,关于我国社会工作价值观表述正确的是()A.中国的社会工作职业化和
二等水准网 1)测区概况 ××地区气候宜人、四季分明,6、7、8月为雨季,1
基础地质条件变化不大的地段,砌石路基的伸缩缝间距一般应为()m。A.6~10
最新回复
(
0
)