Conclusion

Abstract

This chapter summarizes the main findings of the book. The concept of an international organization is defined by looking at the nature of the legal systems they develop. The notion of ‘dual legal nature’ describes how organizations create particular legal systems that derive from international law. This peculiar condition affects the law they produce, which is international and internal at the same time. The effects of the dual legal nature are discussed by analysing international responsibility, the law of treaties, and the validity of organizations’ acts. This conceptualization allows the development of a common legal framework applicable to all international organizations, despite their differences in terms of powers, membership, size, and other descriptive features. In particular, the most valuable consequence of this conceptualization is to rebut a frequent argumentative motif, under which organizations are either perceived as vehicles for member states’ interests or as autonomous entities.