The hypothesis that democratization triggers political violence has been proposed repeatedly in the quantitative literature, but it remains controversial with respect to both interstate and civil wars. Current empirical research continues to be afflicted by methodological and data problems...

In recent years, the quantitative international relations literature has increasingly paid attention to the potential problem of serially correlated observations in time-series cross-section (TSCS) data. Today, no study using TSCS data is published unless it manages to control for temporal...