Merely touching money has the power to alter our behavior. Money makes us more selfish, less helpful, and less generous towards others. One experiment, for example, had a pedestrian drop a bus pass in front of people who had just gotten money out of a cash machine or merely walked past the machine. People who had gotten money out of the cash machine were less likely to alert the woman that she had dropped her pass. While money can hamper helpfulness, it also confers psychological advances in the form of making people more persistent and more successful at solving challenging problems.
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