Peaceful uncertainty: When power shocks do not create commitment problems

Muhammet A. Bas, Robert Schub

Research output: Contribution to journalArticle

Abstract

Does a shock to the balance of power cause the advantaged actor to exploit its newfound advantage by initiating conflict? The modeling literature on commitment problems as a source of war makes a central assumption that states know and anticipate power shifts. We relax this assumption such that states must estimate future power shifts by looking at past and present capabilities-both their own and those of their adversaries. We incorporate these estimates, and their attendant uncertainty, into a model of war. We find that commitment problems remain a source of war, but that the existing models overpredict war by ignoring this dynamic. States continuously updating their estimates and accounting for uncertainty promotes peace. It follows that the apparent window of opportunity-in which the power balance becomes suddenly favorable to one side- poses less of a threat to peace than previous theories suggest. This result has applications to nuclear proliferation dynamics and conflict in general. We find empirical support for the model in tests analyzing power shifts and interstate wars.

Original languageEnglish (US)
Article numbersqx041
Pages (from-to)850-866
Number of pages17
JournalInternational Studies Quarterly
Volume61
Issue number4
DOIs
StatePublished - Dec 1 2017

ASJC Scopus subject areas

  • Sociology and Political Science
  • Political Science and International Relations

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