TY - JOUR TI - Cognitive ability and in-group bias AB - We study the role of performance differences in a task requiring cognitive effort on in-group bias. We show that the in-group bias is strong in groups consisting of high-performing members, and it is weak in low-performing groups. This holds although high-performing subjects exhibit no in-group bias as members of minimal groups, whereas low-performing subjects strongly do. We also observe instances of low-performing subjects punishing the in-group favoritism of low-performing peers. The same does not occur in high-performing or minimal groups where subjects generally accept that decisions are in-group biased. DO - https://doi.org/10.1016/j.jpubeco.2018.04.006 SP - 280 EP - 292 UR - https://doi.org/10.1016/j.jpubeco.2018.04.006 PY - 2018-01-01 JO - Journal of Public Economics AU - Paetzel, Fabian AU - Sausgruber, Rupert ER -