Nonproportional hazards and event history analysis in international relations

Janet M. Box-Steffensmeier, Dan Reiter, Christopher Zorn

Research output: Contribution to journalArticlepeer-review

104 Scopus citations

Abstract

Event history models have become a dominant method of analysis in the study of international relations. Conventional event history models, however, retain the assumption that the effects of the covariates remain proportional to each other throughout the duration of the subject's phase. Nonproportional hazard (NPH) models are used, which allow for the effects of covariates to vary over time. These models are then applied to three previously established data sets on the duration of postwar peace, civil wars, and alliances. Results show that NPH analysis is a useful method for testing new hypotheses, as well as removing possible sources of bias from existing analyses.

Original languageEnglish (US)
Pages (from-to)33-53
Number of pages21
JournalJournal of Conflict Resolution
Volume47
Issue number1
DOIs
StatePublished - Feb 2003

All Science Journal Classification (ASJC) codes

  • Business, Management and Accounting(all)
  • Sociology and Political Science
  • Political Science and International Relations

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