@TechReport{iza:izadps:dp11944, author={Bauer, Michal and Cahlíková, Jana and Katreniak, Dagmara Celik and Chytilová, Julie and Cingl, Lubomir and Želinský, Tomáš}, title={Anti-Social Behavior in Groups}, year={2018}, month={Nov}, institution={Institute of Labor Economics (IZA)}, address={Bonn}, type={IZA Discussion Paper}, number={11944}, url={https://www.iza.org/publications/dp11944}, abstract={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.}, keywords={aggressive competitiveness;antisocial behavior;group decision-making;group membership;group conflict}, }