Reports the results of a two-day workshop that brought together a diverse group of modelers, specialists in international relations, and thinkers about power from both the public and the private sectors. Reports the results of a two-day workshop that brought together a diverse group of modelers, specialists in international relations, and thinkers about power from both the public and the private sectors. They considered how to measure state power and the power of non-state actors, and how states and non-state actors wield power on a continuum ranging from persuasion, through economic aid, to military action.