@misc{10481/106042,
year = {2025},
month = {8},
url = {https://hdl.handle.net/10481/106042},
abstract = {Well-functioning human societies require the integration of vulnerable minorities, yet leading scientific theories conflict on how easily diverse groups cooperate. We experimentally investigate cooperation in 14 centres of a mentoring programme where participants have two possible natural identities—individuals raised under legal guardianship, suffering a negative stereotype (G; n = 112) and users without such a social stigma (NG; n = 82). Participants played a prisoners’ dilemma game with an anonymous partner from the same centre (centre-ingroup) and from another centre (centre-outgroup). For individuals without a history within-centre interaction, we find centre-outgroup favouritism among G and centre-ingroup favouritism among NG. However, the longer G individuals have been in the centre the more centre-ingroup favouritism they display, while the opposite is true for NG. Regardless of within-centre history, both G and NG individuals cooperate less with the centre-ingroup (versus outgroup) as the probability that the centre-ingroup is G increases. Thus, we observe patterns of centre-outgroup and natural-outgroup favouritism among G which challenge theoretical frameworks exclusively focusing on ingroup favouritism. Our findings highlight the roles of system-justification and stereotypes in intergroup cooperation and have implications for the integration of vulnerable groups and the optimization of social policy programmes.},
organization = {We gratefully acknowledge the financial help of MINECO-FEDER (PID2021-126892NB-I00, PID2019-108718GB-I00), the University of the Basque Country (2023, EHU-N23/50), the Basque Country Government (IT1461-22), the Andalusia Government (EMERGIA EMC21_00331; FEDER C-SEJ-371-UGR23), and the EU’s Horizon 2020 and UGR–Athenea3i (Marie Skłodowska-Curie grant agreement no. 754446).},
publisher = {Royal Society Publishing},
title = {Conflicting identities and cooperation between groups: experimental evidence from a mentoring programme},
doi = {https://doi.org/10.1098/rspb.2025.1363},
author = {Espín Martín, Antonio Manuel and Espinosa, María Paz and Vázquez-De Francisco, María J. and Brañas Garza, Pablo},
}