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MCDMGame-theoretic / decision-theoretic IR

Expected Utility Model of War

The expected utility model of war, introduced by Bruce Bueno de Mesquita in The War Trap (1981), treats the decision to initiate international conflict as a rational gamble. A leader is modeled as comparing the utility of the outcome they could win against the utility of the outcome they could lose, each weighted by the probability of winning or losing, and is predicted to challenge another state only when this expected utility is positive. It was among the first attempts to derive testable predictions about war initiation from explicit assumptions of rational, utility-maximizing decision making.

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Sources

  1. Bueno de Mesquita, B. (1981). The War Trap. New Haven, CT: Yale University Press. ISBN: 9780300030914

How to cite this page

ScholarGate. (2026, June 22). Bueno de Mesquita's Expected Utility Theory of International Conflict. ScholarGate. https://scholargate.app/en/international-relations/expected-utility-model-of-war

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ScholarGateExpected Utility Model of War (Bueno de Mesquita's Expected Utility Theory of International Conflict). Retrieved 2026-06-24 from https://scholargate.app/en/international-relations/expected-utility-model-of-war · Dataset: https://doi.org/10.5281/zenodo.20539026