decision problem. Decision makers can choose an individual level of cooperation from a given range of possible actions. Within …This paper introduces a two-sided methodological framework for studies on cooperation based on a new game design … applying our framework. Palestinians show a substantially higher cooperation level in the positive externality treatment. In …

Theory of mind and individual preferences are important determinants in social decision making. The current study … of the same type better than cooperative adolescents. Adolescents show lower cooperation levels and a slower adaption of …