Despite the proliferation of ideational accounts in the last decade or so, the debate over the role of ideas remains caught up in a series of disputes over the ontological foundations, epistemological status and practical pay-off of the (re)turn to ideational explanations. It is thus unsurprising that there is still little clarity about just what sort of an approach an ideational approach is and about what it would take to establish the kind of fully-fledged ideational research programme many seem to assume has already been developed.

The contributors in this volume address...