His research focuses primarily on the field democratic governance in light of the EU’s enlargement policy, the constitutional design of Kosovo institutions, state building from an internal and external perspective, and rule of law reforms. Fisnik’s research also includes the politics of constitutional design in societies with ethnic divisions, international state building in post-conflict societies, and the ongoing clashes between regional and international legal regimes, especially between EU law and specific segments of international law. Fisnik’s academic specialization is on the topic of competition and cooperation between self-contained treaty regimes and their interaction in the context of constitutional and pluralist approaches in light of globalization.
Fisnik has published several articles in international peer-reviewed journals, two books, one with Kluwer Law International and one with Springer International. Fisnik holds an LLB from the University of Prishtina, an MA from the University of Sussex in the United Kingdom, and a PhD in International Law from the Vrije Universiteit Brussels in Belgium.