This is an open access title available under the terms of a CC BY-NC-ND 4.0 licence. It is free to read at Oxford Scholarship Online and offered as a free PDF download from OUP and selected open access locations. Causal Inquiry in International Relations defends a new, philosophically-informed account of the principles which must underpin any causal research in a discipline such as International Relations. Its central claim is that there is an underlying logic to all causal inquiry, at the core of which is the search for empirical evidence capable of ruling out competing accounts of how specific events were brought about. Although this crucial fact is obscured by the 'culture of generalization' which predominates in contemporary social science, all causal knowledge ultimately depends on the provision of empirical support for concrete claims about specific events, located in space and time. This book not only explores existing philosophical debates around causation, but also provides a