International security theories generally identify economic power as a key determinant of military power, and thereby of security, but there is usually not much explanation about the determinants of economic power.2 In this paper, a simple yet comprehensive model of economic power is introduced and integrated with an international security model. The economic power model is unique to this article although it was influenced by well-known theories of economic growth that emphasize the role of exports and technical progress. The international security model is a Realist-type model based on the assumption of states functioning in an anarchic world order. The integrated security model explains how the determinants of economic power affect international security. The integrated model yields policy implications for security and suggests policies for enhancing the international security of a regional or of a major power.