This is the first legal monograph analyzing multilevel governance of global 'aggregate public goods' (PGs) by using historical, legal, political and economic methods. It explains the need for a 'new philosophy of international law' in order to protect human rights and PGs more effectively and more legitimately. Such a 'constitutional approach' is justified not only by the fact that 'human rights, ' 'rule of law, ' 'democracy' and other 'principles of justice' used in national, regional and UN legal systems are indeterminate legal concepts whose linguistic, jurisprudential and doctrinal...