Abstract
The study of responsibility in ethics focuses on the nature of agency, accountability, blame, punishment and, crucially, the distribution of responsibility for complex ethical problems. Work in social ontology examines the nature of entities such as groups, organizations, corporations, and institutions, and what it is for these entities to have intentional states and to act. Until recently, these fields of research have mostly been treated separately. The goal of this issue is to examine emerging research at their intersection. The papers gathered here explore both normative dimensions of work in social ontology and metaphysical assumptions and implications of ethical theorizing about collective responsibility.