 On a more confined terrain, the theory of collective intentionality raises and contributes to elaborating on several specific issues in social ontology. As noted in the previous subsection, the theory of group agency—including the issue of whether collective entities can count as subjects of intentional states—poses questions about the ontological status of groups and group agents, and it invites reiterations of familiar discussions about reduction, supervenience, constitution, and composition (and more). But the theory of joint action, especially if it is viewed as involving questions about the specific relations between cooperators or co-agents, already raises issues regarding the social identity of persons. And once intersubjective relations are cast against the background of joint projects and shared practices, the study of collective intentionality enters a direct exchange with the analysis of recognition and recognitive attitudes (cf. Ikäheimo &amp; Laitinen (eds.) 2011).