Replication data for: Beneath the Surface: Regime Type and International Interaction - 1953-78

In the research reported here, we demonstrate that the democratic peace is only the most visible manifestation of the impact of domestic political structure on international relations. We consider the complete range of cooperative and conflictual interaction of each state in the international system with every dyadic partner in its politically relevant international environment between 1953 and 1978.

We demonstrate a strong and consistent relationship between regime type and foreign policy behavior, both at the monadic and the dyadic level. States with more democratic characteristics tend to behave more cooperatively and less conflictually in the international system; these tendencies intensify when democratic states interact with other democracies. Meanwhile, non-democracies tend to treat democracies with more conflictual and less cooperative behavior.