We study the development of cooperation in 929 young children, aged 3 to 6. In a unified experimental framework, we … examine pre-registered hypotheses about which of three fundamental pillars of human cooperation – direct and indirect … reciprocity, and third-party punishment – emerges earliest as a means to increase cooperation in a repeated prisoner's dilemma …

Understanding the roots of human cooperation among strangers is of great importance for solving pressing social … dilemmas and maintening public goods in human societies. We study the development of cooperation in 929 young children, aged 3 … to 6. In a unified experimental framework, we examine which of three fundamental pillars of human cooperation – direct …

Understanding the roots of human cooperation among strangers is of great importance for solving pressing social … dilemmas and maintening public goods in human societies. We study the development of cooperation in 929 young children, aged 3 … to 6. In a unified experimental framework, we examine which of three fundamental pillars of human cooperation – direct …

Unlike previous attempts to implement cooperation in a prisoners' dilemma game with an infinite horizon in the … cooperation in all but the last round. Our four main experimental treatments distinguish long versus short horizon and strict …, according to our results, only a strict additional equilibrium increases cooperation rate for a given time horizon. As expected …

We study conditional cooperation based on a sequential two-person linear public good game in which a trusting first … conditions of a strong norm of conditional cooperation. Punishment is generally low, it is higher when not delayed and it is not … reciprocity norm, irrespective of monetary consequences. -- Public good games ; Punishment ; Experiments ; Conditional cooperation …