[Revised entry by Marion Smiley on December 19, 2022. Changes to: Main text, Bibliography] The notion of collective responsibility, like that of personal responsibility and shared responsibility, refers in most contexts to both the causal responsibility of moral agents for harm in the world and the blameworthiness that we ascribe to them for having caused such harm. Hence, it is, like its two more purely individualistic counterparts, almost always a notion of moral, rather than purely causal, responsibility. But, unlike its two more purely individualistic counterparts, it does...