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 …

cooperation through two mechanisms: an entry mechanism, which leads to assortative selection of interaction partners, or an exit …

cooperation), especially for Partners. These results suggest Take framing and Individual-level feedback increase the variability … of cooperation. …

cooperation flourish, and withholding punishment makes cooperation collapse. In less cooperative social environments, where … antisocial punishment has been detected, punishment was detrimental to cooperation. The success of punishment in enhancing … cooperation was explained as deterrence of free riders by cooperative strong reciprocators, who were willing to pay the cost of …