The randomization will be done using the software otree (Chen et al., 2016). An equal number of men and women will be invited to the experiment. Subjects will indicate their current gender in the beginning of the experiment. This information is used to assign all female subjects to one stratum and all male subjects to a second stratum. Subjects who choose the third option (“diverse”) are assigned to the team-member position because the share of potential participants who chose “diverse” when registering for experiments of the CLER is lower than 0.01%. However, it cannot be guaranteed that every person invited will show up which might lead to an unbalanced number of subjects in each stratum. The randomization method takes this into account:
In each stratum, every third subject is assigned to the treatment condition. Thus, ideally, an equal number of male and female subjects is assigned to leadership positions. The leaders are then randomly assigned to two randomly chosen team members. If there is a mismatch in the number of leaders and team members, the subjects who could not be assigned to a group of three will be grouped together. Within this group, one person is randomly chosen to be the leader.