????人們總說(shuō)金錢買不到幸福,，但一項(xiàng)新的研究表明幸福也是可以買到的。實(shí)際上,，一個(gè)人擁有的金錢越多,，就會(huì)越幸福。

????這對(duì)一部分人來(lái)說(shuō)可能是很明顯的道理,，但長(zhǎng)期以來(lái)的研究都告訴我們幸福不僅是金錢的富足,。早在上世紀(jì)70年代，經(jīng)濟(jì)學(xué)家理查德?伊斯特林就曾經(jīng)指出,，人們的幸福感并沒(méi)有隨著不斷增加的人均收入而提高,，這就是后來(lái)被人們所熟知的“伊斯特林悖論”（Easterlin Paradox）。這些年來(lái),，這個(gè)悖論逐漸演變成一種新的觀念：金錢確實(shí)能買到幸福,，只是一旦收入能滿足購(gòu)買衣服和食物之類的必須品時(shí)，它對(duì)幸福的影響便開始慢慢降低,。

????這個(gè)觀念漸漸流行開來(lái),，但從來(lái)沒(méi)有得到過(guò)嚴(yán)謹(jǐn)?shù)淖C明。

??? 如今,，美國(guó)密歇根大學(xué)（University of Michigan）的經(jīng)濟(jì)學(xué)家賈斯廷?沃爾弗斯和貝齊?史蒂文森研究了超過(guò)150個(gè)國(guó)家的數(shù)據(jù),，數(shù)據(jù)來(lái)源包括世界銀行（World Bank）和蓋洛普世界民意調(diào)查（Gallup World Poll）。這對(duì)夫妻檔研究發(fā)現(xiàn),，無(wú)論人們目前是貧窮或富裕,，他們都覺(jué)得財(cái)富越多越幸福。與先前研究相反的是,，他們發(fā)現(xiàn)并不存在使幸福感不再增加財(cái)富的臨界值,。

????不用說(shuō)，幸福本身只是個(gè)相對(duì)的概念,。那怎樣算得上是幸福呢,？

????正如《財(cái)富》雜志（Fortune）資深編輯丹?普里馬克所說(shuō)的，就連美國(guó)的百萬(wàn)富翁們也還是覺(jué)得自己不夠富裕,。那么他們就沒(méi)有那些只能掙最低工資的窮人開心嗎,？

????不是的，只是超級(jí)富豪們需要更多的財(cái)富才能更幸福,，沃爾弗斯和史蒂文森在研究報(bào)告中寫道,。這份研究報(bào)告將在今年5月份的《美國(guó)經(jīng)濟(jì)評(píng)論》（American Economic Review）雜志上發(fā)表。事實(shí)上,，研究中并沒(méi)有發(fā)現(xiàn)不幸福的百萬(wàn)富翁,。幸福這個(gè)話題長(zhǎng)期以來(lái)一直吸引著經(jīng)濟(jì)學(xué)家的注意力,，沃爾弗斯和史蒂文森的分析補(bǔ)充了這個(gè)話題的研究成果。

????They say money can't buy happiness, but a new study suggests it actually can. In fact, the more money you have, the happier you are.

????That might sound obvious to some people, but studies have historically shown there's more to happiness than money. In the 1970s, economist Richard Easterlin argued that increasing average income did not raise average well-being, a claim that became known as the Easterlin Paradox. Over the years, the paradox evolved into the notion that money does indeed buy happiness, but that effect fizzles once the income you earn is able to buy your basic needs -- food, shelter, and the like.

????Somehow that idea carried into popular notion but was never really formally tested.

????Now University of Michigan economists Justin Wolfers and Betsey Stevenson have examined data for more than 150 countries from sources including the World Bank and the Gallup World Poll. The husband-and-wife team found that the more money people have the happier they are, regardless of whether they're rich or poor. And contrary to earlier studies, there isn't a cutoff point where making more than a certain amount doesn't lead to more happiness.

????Needless to say, happiness is a relative term. What does it mean to be happy, anyway?

????Even America's millionaires don't think of themselves as rich, as Fortune's Dan Primack has pointed out. So are they any less happy than poorer folks scraping by earning minimum wage?

????Not exactly. It just takes more money to make the super-rich happier, Wolfers and Stevenson note in their study, which is to be published in the May 2013 American Economic Review. In fact, the study found zero unhappy millionaires. Their analysis adds to the collection of studies on happiness that have long interested economists.