My current research project deals with the problem of collective responsibility. I want to analyse different kinds of normative responsibility, namely retrospective as well as prospective responsibility and moral as well as social, political, legal and corporate responsibility in the context of complex social and collective action situations. Two premises are crucial for my account: First, I presuppose that collective action is a real and irreducible part of the social world and that the reality and irreducibility of collective responsibility is justified by this fact. Second, I assume that the question concerning the bearer of collective responsibility and the question concerning the conditions for the ascription of collective responsibility should be taken apart, because both questions can have different answers in relation to the different kinds of normative responsibility.