whether the prospect of losses can induce cooperation, we let experimental subjects play the traveler's dilemma in the gain …

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 …

Cooperation is beneficial but may be hard to achieve in situations where the selfish interests of individuals conflict … show that partner choice strongly facilitates cooperation and leads to networks where free-riders are likely to be excluded. …

of their opponent's behavior. These commitment-like decision rules can enhance or reduce cooperation depending on the … behavior appropriately. Nonetheless, evolutionary studies of cooperation typically focus only on reaction norms, e.g., tit for …'s unobservable state of mind. Using Markov decision processes, we investigate optimal decision rules and their performance in …