Volunteers and pseudo-volunteers: The effect of recruitment method in dictator experiments

Abstract

We report the results of experiments that test for behavioral differences between volunteer subjects recruited in the usual way and pseudo-volunteer subjects in experiments conducted during class time. In a series of dictator games, we find that psuedo-volunteers are more generous on average than their volunteer counterparts, and that non-monetary factors such as religious or altruistic preferences have a greater effect on the giving behavior of pseudo-volunteers.