Realism, neorealism, and the study of world politics / Robert O. Keohane -- Laws and theories / Kenneth N. Waltz -- Reductionist and systemic theories / Kenneth N. Waltz -- Political structures / Kenneth N. Waltz -- Anarchic orders and balances of power / Kenneth N. Waltz -- Continuity and transformation in the world polity / John Gerard Ruggie -- Theory of world politics / Robert O. Keohane -- Social forces, states, and world orders / Robert W. Cox -- The poverty of neorealism / Richard K. Ashley -- The richness of the tradition of political realism / Robert G. Gilpin -- Reflections on theory of international politics / Kenneth N. Waltz.