We investigate experimentally whether the extent of conditional cooperation in public good games depends on the … conditional cooperation. We also find no evidence that the type of game makes a difference to unconditional contributions. The …

In repeated public good experiments, reciprocity helps to sustain high levels of cooperation. Can this be achieved by … location. This mechanism of individually targeted sanctions helps to foster initial cooperation. It decreases over time …, however. Location choices are used to reciprocate, but may not suffice to stabilize voluntary cooperation as an effect …

temporary group member's effort but also the efforts of the permanent group members and, ultimately, also cooperation within the …

Human cooperation is ubiquitous and instinctive. We are among the most cooperative species on Earth. Still, research … to map human cooperation as well as to study free riding. We acquired data through an online, unincentivized …

update their beliefs about the probability of being audited, both before and after audits are definitely withdrawn. We find … that when individuals have initially experienced systematic audits, they decrease both their beliefs and their … irregular, they maintain high beliefs about the probability of being audited and continue cooperating long after audits have …