 The issue of how to establish the interpersonal structure of participatory intention is a central problem for the theory of shared agency, and remains an area of active research interest. For further views, see Gilbert 2009 (some discussion of which is below), Korsgaard’s interpretation of Kant in her 2009, 189ff, and Roth 2004, whose conception of intentions allows him to appeal to an interpersonal mechanism similar in some respects to that of commands.