作者：Mujcic, Redzo; Leibbrandt, Andreas
作者单位：Vienna University of Economics & Business; Monash University
摘要：Some of the greatest human achievements are difficult to imagine without prosociality. This article employs a natural field experiment to investigate indirect reciprocity in natural social interactions. We find strong evidence of indirect reciprocity in one-shot interactions among drivers. Subjects for whom other drivers stopped were more than twice as likely to extend a similar act to a third party. This result is robust to a number of factors including age, gender, social status, presence of...
