摘要：The aim of this paper is to highlight the main aspects regarding the rational choice theory in neo-institutionalism, and the role the EU Neighbourhood Policy has nowadays.The protagonist of the rational choice theory in the new institutionalism remains homo-economicus.The theory of rational choice institutionalism challenges the perfect rationality of the individual, rather than the principle of rational choice itself.ENP is a framework for consolidating the Union's relations with neighbouring countries and aims therefore intensifying cooperation with them in order to establish a zone of prosperity, good neighbourliness, stability and security
关键词：rational choice institutionalism; European ;Neighbourhood Policy; borders; security; ;new institutionalism.
