The observation that democracies rarely if ever fight each other was made by Dean Babst nearly three decades ago, but has had little impact on the literature on peace research and international relations until recently. But now every volume of the leading journals contains articles on minor and major aspects of this theme. Professional jealousy and confusion of levels of analysis are possible explanations for the late acceptance of the idea of a democratic peace, but above all it seems to have been hampered by the Cold War. Erich Weede has taken a bold step in reconsidering his own previous view and other should follow. The Cold War has ended in the real world, and it should end in peace research, too.
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Nils Petter Gleditsch (1992) studied this question.
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