We seem to ascribe mental states and agency to groups. We say ‘Google knows such-and-such,’ or ‘Amazon intends to do such-and-such.’ This observation of ordinary parlance also found its way into philosophical accounts of social groups and collective intentionality. However, these discussions are usually quiet about how groups self-ascribe their own beliefs and intentions. Apple might explain to its shareholders that it intends to bring a new iPhone to the market next year. But how does Apple know what it intends? (...) How do groups get to know their own mental states? This is the question of collective self-knowledge. I argue that collective self-knowledge is a distinct phenomenon that deserves our attention. In particular I suggest: that we should be interested in collective self-knowledge, because our behaviour indicates that we already engage with collective self-knowledge in practice; that groups can collectively avow, which indicates that they have privileged and peculiar access to their own intentional states; and that collective self-knowledge is not reducible to intentional states of individuals and therefore is an independent explanandum. (shrink)

Discoveries about attitude aggregation have prompted the re-emergence of non-reductionism, the theory that group agency is irreducible to individual agency. This paper rejects the revival of non-reductionism and, in so doing, challenges the preference for a unified account, according to which, agency, in all its manifestations, is rational. First, I offer a clarifying reconstruction of the new argument against reductionism. Second, I show that a hitherto silent premise, namely, that an identified group intention need not be determined by member attitudes (...) according to a rule, e.g., majority, is false. Third, I show that, on rejecting this premise, the aggregation results lead instead to the conclusion that, in contrast to individual agency, group agency is non-rational. (shrink)

Intentional Mentalism is the view that mental intentionality is primary to non-mental intentionality and that the latter is derived from the former. In this article I examine three views which have been taken to motivate Intentional Mentalism: conventionalism as invoked by Searle, Gricean pragmatism, and the language of thought hypothesis. I argue that none of these views motivates Intentional Mentalism, and that, in fact, the former two imply its rejection.

Some harms are such that they cannot be prevented by a single individual because she lacks the requisite control. Because of this, no individual has the obligation to do so. It may be, however, that the harm can be prevented when several individuals combine their efforts. I argue that in many such situations each individual has a duty to join forces: to approach others, convince them to contribute, and subsequently make a coordinated effort to prevent the harm. A distinctive feature (...) of this proposal is that, in the first instance, it focuses on mobilizing others rather than on preventing the outcome. As it ultimately concerns a collective harm, the duty to join forces is irreducibly collective. Furthermore, once enough people have been mobilized, they have a collective obligation to prevent the harm that is irreducibly collective also because it applies to the collective as such. (shrink)