HONESTY ON THE STREETS: A FIELD STUDY ON NEWSPAPER PURCHASING
通过实地实验研究街头报纸购买中的诚信行为，发现道德提醒能提高付款金额，但对是否付款无影响，法律提醒则无效。
Many publishers use an honor system for selling newspapers in the street. We conducted a field experiment to study honesty in this market, finding that a moral reminder increases the level of honesty in payments, whereas the same message has no effect on whether one is honest. Reminding customers of the legal norm has no effect. We argue that these results are consistent with a preference for honesty, based on an internalized social norm. Auxiliary evidence suggests that the moral message remains effective when it is posted for longer periods, and even when it is removed again. (authors' abstract)