War ledger data, 1870-1974

This study examines the relationship between national power and war. In the first dataset, the conditions preceding the outbreak of war are examined. In particular, the links between national growth and the onset of war are addressed. The second dataset contains variables which measure national capabilities and estimate political capacities. The third dataset relates to the consequences of war in terms of national power and growth. The final two datasets concern nuclear deterrence: the fourth dataset contains crisis data to test whether deterrence works, and the last dataset contains information on U.S. and U.S.S.R. defense expenditures in order to establish if the two major nuclear powers are in a nuclear arms race.