A collective duty gap arises when a group has caused harm that requires remedying but no member did harm that can justify the imposition of individual remedial duties. Examples range from airplane crashes to climate change. How might collective duty gaps be filled? This paper starts by examining two promising proposals for filling them. Both proposals are found inadequate. Thus, while gap-filling duties can be defended against objections from unfairness and demandingness, we need a substantive justification for their existence. I (...) argue that substantive justification can be found in the normative force of commitments individuals make to others with regard to ends. Along the way, I argue that gap-filling duties must be conceptualized differently in group agents, as compared to non-agent groups: in the former, gap-filling duties can be understood as duties to “take up the slack”; in the latter, this would be a category error. (shrink)

Can a group be morally responsible instead of, or in addition to, its members? An influential defense of corporate responsibility is based on results in social choice theory suggesting that a group can form and act on attitudes held by few, or even none, of its members. The members therefore cannot be (fully) responsible for the group’s behavior; the group itself, as a corporate agent, must be responsible. In this paper, I reject this view of corporate responsibility by showing how (...) it pays insufficient attention to individual agency. By accounting for group members’ strategic behavior, we shall see how they control collective attitude formation and are therefore responsible for their group’s behavior. (shrink)

Do responsibility voids exist? That is, are there situations in which the group is collectively morally responsible for some outcome although no member can be held individually morally responsible for it? To answer these questions, I draw a distinction between competitive and cooperative decision contexts based on the team-reasoning account of cooperation. Accordingly, I provide a reasoning-based analysis of cooperation, competition, moral responsibility, and, last, potential responsibility voids. I then argue that competitive decision contexts are free of responsibility voids. The (...) conditions for the existence of responsibility voids in cooperative decision contexts depend on the type of uncertainty the group faces, either external or coordination uncertainty. (shrink)

We are responsible for some things but not for others. In this thesis, I investigate what it takes for an entity to be responsible for something. This question has two components: agents and actions. I argue for a permissive view about agents. Entities such as groups or artificially intelligent systems may be agents in the sense required for responsibility. With respect to actions, I argue for a causal view. The relation in virtue of which agents are responsible for actions is (...) a causal one. I claim that responsibility requires causation and I develop a causal account of agency. This account is particularly apt for addressing the relationship between agency and moral responsibility and sheds light on the causal foundations of moral responsibility. (shrink)