can promote cooperation through a combination of sorting and opportunistic signaling, with late period defections by … remains unclear. In each of six treatments that vary the cooperation premium and the informational basis for reputation …, that with a high cooperation premium and good information, investment in reputation grows across sets of finitely …

taxation. In addition, we find that local social interaction among subgroups of participants also boosts cooperation. …

find that members of each ethnicity show favoritism towards those of their own ethnicity in both trust and cooperation and … that communication enhances inter-ethnic cooperation significantly. We also find that Uyghur and Han subjects behave …

can promote or deter cooperation. We use decisions in an initially played trust game to create five environments that …