One hundred undergraduate students at a large business school in Hong Kong participated as subjects in this experiment in exchange for course credit. All subjects were told to imagine that they had recently graduated and now had a job with a monthly salary of HK$ 12,000 (1 HK$ = 0.13 US$). They were also given a financial profile and told that their bank issued them a charge card to which they charged their expenses. They were further told that they would receive a charge card statement once every month and that they needed to pay for it in full by writing a check.