The G7, international terrorism and domestic politics: Modeling policy cohesion in response to systemic disturbance

This work probes the variability in G7 cohesion in response to relatively new disturbances in the international system. Using a domestic politics model, we argue that G7 cohesion weakens in the face of international terrorism in the context of variable domestic consequences to common foreign policy responses to this systemic disturbance. We compare the predictions from our model with predictions stemming from neorealist and liberal/institutionalist explanations. We find that, consistent with the domestic politics explanation, G7 foreign policy cohesion declines as internal terrorism increases.