The Peaceful Resolution of Territorial Disputes dataset, 1945–2015

This article introduces the Peaceful Resolution of Territorial Disputes (PRTD) dataset, covering all interstate territorial disputes (1945–2015). Our dataset captures proposals for the peaceful resolution of territorial disputes made by states involved in territorial claims at the disputant-year level. These proposals provide a concrete measure of changing state preferences toward negotiations, non-binding, and binding third-party dispute resolution methods over time. In contrast to existing attempt-level data, the monadic panel design of the dataset captures not only actual attempts at peaceful resolution – the result of an agreement between disputants – but also proposals for methods that did not occur but were preferred at a particular time point. Our dataset allows for robust and generalizable quantitative analyses of the peaceful resolution of territorial disputes that are sensitive to temporal, regional, claim-based, and state-level trends. To demonstrate the utility of our dataset, we use hybrid logistic regression to examine the determinants of binding PRTD proposals. Over-time changes in characteristics such as regime type and treaty commitments influence attitudes toward binding settlement methods differently than disputant-level measurements. We also show that time has a distinctively non-linear effect.