Chair of Transnational Law

Chair of Transnational Law was founded through the evolution of the Centre for Research on European Institutional Design (CUUE), which was established in 2022 at the Faculty of Law and Administration at the University of Warsaw. Our work centers on the dynamic changes in law that cross borders, incorporating national, EU, and international law. As an emerging academic discipline, transnational law investigates the interactions between various legal systems and the impact of transnational entities, including corporations, international organizations, and tribunals, on legal frameworks. Our research places special emphasis on European integration law and covers topics such as the digital economy, consumer protection, and the relationship between public and private law.

Head of the Chair of Transnational Law

prof. dr hab.

Robert Grzeszczak

Professor of Law at the School of Law of the University of Warsaw; Member (since 2018- ) and Chairman of Committee of Legal Sciences of the Polish Academy of Sciences (2020-2023), Member of the Programming Board of the Strategic Litigation Program of the Helsinki Foundation for Human Rights, Member of the Polish Association of European Law and of Polish Group of the International Law Association, Member of International Society of Public Law (I-CON), 2003 – 2008 was affiliated to the Chair of European and International Law of University of Wrocław and at the Chair of Law in the Willy Brandt Centre for German and European Studies at the University of Wroclaw. Professor Grzeszczak’s research background is the constitutional analysis of European Union, ore specifically: European Public Law (in particular Comparative Constitutional Law, EU Law and the EU political system); Europeanisation and Internationalisation of Public Law;
Selected publications

Pracownicy naukowi / dydaktyczni

prof. ucz. dr hab.

Magdalena Słok-Wódkowska

Assistant professor at Faculty of Law and Administration, cooperates with DELab UW, since 2013 is a co-editor of a blog devoted to international law przegladpm.blogspot.com. She combines her academic carrier with working in the Chancellery of the Senate of the Republic of Poland as an analyst.
Her research are primarily focused on international economic law and the role of the European Union as a specific subject of international economic relations.
In the years 2014 – 2015 she was the principal investigator of the NCN Sonata grant “Anatomy of regional trade agreements. What really matters?” No. 2013/09/D/HS5/01328. The aim of the project was to analyse the European Union’s trade agreements. In the same period, she was also an evistigator at the NCN Opus grant carried out at the Warsaw School of Economics entitled “Impact of free trade area EU – USA on value, characteristics and organization of economic cooperation in the world economy. Consequences for Poland.” principal investigator – Prof. Elżbieta Czarny.
Currently, since 2020, she has been the head of the OPUS grant entitled “International economic law in the era of digital transition: trends, regulatory models, and specific solutions concerning e-commerce and data” 2019/35/B/HS5/02107. The aim of the grant is to analyze new regulatory areas in trade agreements related to the development of the digital economy.
In recent years, part of Dr. Słok-Wódkowska’s research has also been devoted to purely systemic issues of the European Union, such as the role of the European Parliament and the national parliaments of the Member States.

dr

Oktawian Kuc

Assistant Professor at the Faculty of Law and Administration, University of Warsaw. He is a graduate of that faculty, as well as of Harvard Law School and the Hague Academy of International Law. His academic work focuses on international adjudication, dispute resolution mechanisms, and the reception of international law in domestic legal systems.

He has held Visiting Scholar positions at the Lauterpacht Centre for International Law at the University of Cambridge, the Max Planck Institute in Heidelberg, and the University of Copenhagen. He currently leads a research project funded by the National Science Centre entitled International Jurisprudence in Domestic Courts.

Dr Kuc is a recipient of the Polish Ministry of Science and Higher Education Scholarship for Outstanding Young Scientists. He has also been awarded fellowships by the German Academic Exchange Service (DAAD) and the American Society of International Law.

In addition to his academic work, he is a qualified lawyer in both Poland and the United States. He previously served as an international civil servant at the United Nations Office in Geneva.

dr

Jagna Mucha

Assistant Professor at the Faculty of Law and Administration, University of Warsaw, Dean’s Proxy for International Programmes, Visiting Scholar at Harvard Law School.

In her academic work, Jagna has been interested in Polish, international, comparative and European consumer law and different forms of dispute resolution.

She is running empirical research projects on consumer collective redress (class actions)- grant Sonatina- and consumer law enforcement- grant Sonata. Both projects are funded by the Polish National Science Centre. Additionally, her academic interests revolve around the problem of access to justice and alternative dispute resolution methods (ADR).

In 2017 Jagna was awarded PhD with distinction for a thesis on alternative dispute resolution for consumer disputes in the European Union. Her research in this field was supported by the Deutscher Akademischen Austauschdienst (research conducted at the Ludwig-Maximilians University in Munich) and the Polish National Science Centre (project partially run at the Centre for Socio-Legal Studies at the University of Oxford).

PhD Candidates at the Chair of Transnational Law

Zuzanna Choińska

PhD student at the Doctoral School of Social Sciences at the University of Warsaw, and a graduate of the Faculty of Law and Administration UW. From 2025, she is a fellow in the OPUS grant funded by NCN. Her PhD dissertation deals with the use of data analytics-based technologies by law enforcement agencies in relation to the protection of the right to privacy under European law.

Stanisław Gorzeliński

PhD student at the Doctoral School of Social Sciences at the University of Warsaw, graduate of law at the Faculty of Law and Administration UW. He is an attorney trainee and a practicing lawyer specialized in energy and infrastructure law. Stanisław is writing a dissertation on the application of teleological analysis of law in the study of the European Union’s energy policy.

Witold Janas

PhD student at the Doctoral School of Social Sciences, University of Warsaw, and graduate of the LL.M. program at the College of Europe in Bruges. During his doctoral studies, he undertook long-term research stays at the University of Chile and Université Paris-Panthéon-Assas. He has worked as a researcher on a project funded by the National Science Centre (NCN) focused on EU consumer protection law, and as the coordinator of a roundtable on the AI legislative proposal, organized by the Congress of Argentina.

His research interests include EU trade law, EU–Latin America trade relations, sustainable development law, and the EU’s external relations law.

Kamil Kapica

PhD student at the Doctoral School of Social Sciences at the University of Warsaw, graduate of law at the Faculty of Law and Administration UW. He is a researcher in a grant funded by the National Science Centre (NCN). The research is being carried out at the Institute of Legal Sciences of the Polish Academy of Sciences (INP PAN).

The subject of his doctoral thesis is the admissibility of cumulative administrative fines and parallel, cross-regime enforcement of the European Union law in light of the ne bis in idem principle.

Julia Sochacka

PhD student at the Doctoral School of Social Sciences at the University of Warsaw in legal sciences. She graduated in law and Arabic studies from the College of Interdisciplinary Individual Studies in the Humanities and Social Sciences at the University of Warsaw. She is preparing a dissertation on regional investment cooperation in the League of Arab States.

Bartosz Szyler

PhD student at the Doctoral School of Social Sciences at the University of Warsaw, graduate of law and philosophy at the College of Interdisciplinary Individual Studies in Humanities and Social Sciences at the University of Warsaw. He specialises in European Union law, new technology law, and legal theory and philosophy. He is preparing his doctoral thesis on manifestations of digital constitutionalism in European regulations on digital platforms.

Adrian Wagstyl

PhD student at the Doctoral School of Social Sciences at the University of Warsaw, graduate of law at the Faculty of Law at the University of Warsaw. Expert on EU law at the Chancellery of the Prime Minister. He specializes and is writing his dissertation on the application of soft law in European Union law.

Natan Waśniowski

PhD student at the Interdisciplinary Doctoral School of the University of Warsaw, pursuing research in the fields of legal studies and economics & finance. Expert at the Polish Office of Competition and Consumer Protection (UOKiK), in the Merger Control Department. Licensed attorney-at-law (radca prawny) admitted to the Warsaw Bar Association of Attorneys-at-Law. Graduate of Law at the Jagiellonian University and European Studies at the University of Warsaw.

His areas of expertise include merger control and competition law. He is currently preparing a doctoral dissertation on the concept of European champions and the extraordinary authorisation mechanism in EU merger control law.