Research in the CeDIE focuses on the various disciplines, namely public international law, private international law, European law and human rights. Members of the Center study, in a comparative perspective, the evolution of each of these disciplines and their interactions. The analysis of the rule of law rests on that of its factors of development, whether or not legal, and tends to extract the elements for theoretical syntheses. This analytical approach aims to establish connections, mainly between public international law and private international law, and between them and European law. This comparative, interdisciplinary, approach is specific to Louvain in international and European matters.