TY - RPRT AU - Bauer, Michal AU - Cahlíková, Jana AU - Katreniak, Dagmara Celik AU - Chytilová, Julie AU - Cingl, Lubomir AU - Želinský, Tomáš TI - Anti-Social Behavior in Groups PY - 2018/Nov/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 11944 UR - https://www.iza.org/publications/dp11944 AB - This paper provides strong evidence supporting the long-standing speculation that decision-making in groups has a dark side, by magnifying the prevalence of anti-social behavior towards outsiders. A large-scale experiment implemented in Slovakia and Uganda (N=2,309) reveals that deciding in a group with randomly assigned peers increases the prevalence of anti-social behavior that reduces everyone's payoff but which improves the relative position of own group. The effects are driven by the influence of a group context on individual behavior, rather than by group deliberation. The observed patterns are strikingly similar on both continents. KW - aggressive competitiveness KW - antisocial behavior KW - group decision-making KW - group membership KW - group conflict ER -