A world government would foster a constructive cosmopolitanism  A world government would give people a higher focus for their political loyalties than their respective nation-states, and thus facilitate the development of a higher degree of cosmopolitanism than is possible under the sovereign nation-state system. This would benefit the practical operations and effectiveness of the world government. The greater the sense of community among the citizens of a polity, the higher the effectiveness of the polity’s government, and the higher the effectiveness of the polity’s government, the greater the sense of community among its citizens. This suggests an interactive, snowballing relationship over time between the sense of community of the citizens of the world federation, and the efficiency and effectiveness of its practical operations. From relatively low sense of community and low effectiveness in its early stages, over many years of gradual evolution, the world federation would eventually achieve a very high level of community spirit and practical effectiveness.