Peace between participatory polities: a cross-cultural test of the "democracies rarely fight each other" hypothesis

World Politics Vol/Iss. 44 Published In Pages: 573-599
By Ember, Carol R., Ember, Melvin, Russett, Bruce


"Political units with wider political participation engage in less warfare with one another than do less participatory political units" (579).


All variables except checks on power were significant predictors of internal warfare. Data were tested on all societies, local-level polities only, and polities with multilocal authority. Results were significant in all cases.


Test NameSupportSignificanceCoefficientTail
multiple regressionSupportedp<.05UNKNOWNOne-tailed