think of nations as consisting of three basic systems: political, economic and military. Each of these systems has elites that manage it. The three systems are constantly interacting — and in a healthy polity, balancing each other, compensating for failures in one as well as taking advantage of success. Every nation has a different configuration within and between these systems. The relative weight of each system differs, as does the importance of its elites. But each nation contains these systems, and no system exists without the other two.