Goette, Lorenz; Huffman, David; Meier, Stephan; Sutter, … - Institute for the Study of Labor (IZA) - 2010
punishment behavior. Our study uses experiments conducted with 525 officers in the Swiss Army, and exploits random assignment to … platoons. We find that, without competition between groups, individuals are more prone to cooperate altruistically in a … prisoner's dilemma game with in-group as opposed to out-group members. They also use a costly punishment option to selectively …