Polities: This arena comprises political systems or organisations (e.g., nation-states, non-governmental organisations, public administrations, transgovernmental networks), that are equipped with varying degrees of political authority.
Markets: This arena comprises various markets at the sectoral, local, regional, economy-wide, or global level where resources are (re-)allocated.
Firms: This arena comprises corporate agents within the private business sector, including industries, establishments, and enterprises.
Courts: This arena comprises the places where legal disputes are settled at different levels (i.e. (constitutional, federal and transnational) and with varying competences (e.g., criminal, civil, constitutional) but also legislative bodies such as human rights commissions.