The IMF Working Papers series is designed to make IMF staff research available to a wide audience. Almost 300 Working Papers are released each year, covering a wide range of theoretical and analytical topics, including balance of payments, monetary and fiscal issues, global liquidity, and national and international economic developments.
Econometric results from an analysis of the determinants of military expenditure in 125 countries during 1972-88 are presented. The dependent variable is the ratio of military expenditure to GDP; included among the explanatory variables are economic and financial indicators, political variables summarizing the form of government, and demographic and geographic features of nations. The results strongly confirm the importance of these variables in explaining cross-country differences in levels of military expenditure.