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Pugnacious Presidents: Democratic Constitutional Systems and International Conflict
Matthew Kroenig and Madison Schramm analyze how domestic political institutions affect international conflict. Using standard international relations datasets on conflict, they demonstrate that jointly-presidential democratic dyads are over two times more likely to become involved in militarized interstate disputes than other jointly-democratic dyads. They also find that when it comes to lower-level conflicts, jointly-presidential dyads are statistically indistinguishable from nondemocratic dyads. They argue that the results have important implications for our understanding of democratic peace theory and the causes of international conflict.

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ROBERT Y. SHAPIRO

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