The Distribution of Wars over Time

Much of the empirical research on war has been conducted using only one of a number of data sets that have been compiled by leading scholars of international politics. In view of the low correlation among the data sets, however, one must be cautious in choosing between them for whatever task is at hand. The preliminary findings indicate that, regardless of which data set is used, many of the central tests of important hypotheses concerning Kondratieff waves, international trade, and hegemony and war yield much the same results