A lot of people talking about the existing friendship aspect leading to more cooperation, but there's also the public persona &amp; knowledge of filming of it together that are interesting.<br><br>Those whose livelihood (and, at least in tendency, self-perception) depends on public perception are surely less likely to be cutthroat. The self-perception aspect is super interesting because if that plays much of a role then it suggests a lot of cutthroat vs constructive competition is borne out from problems in systematisation vs human "nature".<br><br>Perhaps hard but separating that external financial from self-perception components of motivation would be interesting!,(reply>), @Markus Klyver possibly, but interesting is what counts as a stranger? I suspect if you threw five people who didn't know each other but who were each known to the public and whose identity, nevermind income, is at least somewhat dependent on their public perception you'd also see better cooperation.<br><br>I can also imagine there are not uncommon scenarios where players know each other but contingent on power dynamics and dispositions going in, as well as how the results are communicated outside of those playing the game you'd also see deception.,(reply>), The only ways to have a high likelihood of deception is to either have strangers as contestants to effectively negate any post-game consequences, or to have players as featured but playing for charity.