在过去几年里，研究人员一直努力想要发现商场购物与人们收入水平之间的关系。
For the past few years researchers have been working to establish a relationship between shopping in malls and the income level of people.
“研究人员在一次实验中发现，商场购物者中，乘扶梯而上的人对“救世军”进行的捐助，是那些乘扶梯而下的人的两倍。
[In one experiment, researchers] found that twice as many mall shoppers who had just ridden an up escalator contributed to the Salvation Army than shoppers who had just ridden the down escalator.
Vohs说，“我们在实验室、教室和商场都发现了这一规律。”
This pattern was found in the laboratory, classroom and shopping mall.
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