Global_And_National_System_Category represents aggregates that describe different types of nation-states and societies within the contemporary global system, characterised by varying levels of economic development, technological advancement, and political power. These categories reflect the hierarchical and unequal nature of the global political and economic system, where different countries occupy distinct positions based on their historical development, resource endowments, and political relationships. They demonstrate how global economic and political processes create systematic differences between societies in terms of their opportunities, constraints, and relationships with other nations. These aggregates are essential for understanding contemporary patterns of global inequality, international relations, and the dynamics of globalisation and development.