The research in the framework of the Jean Monnet Chair is focused on the following points.

Live Nation Entertainment, het moederbedrijf van Ticketmaster, is door een jury in New York schuldig bevonden aan het schenden van de Amerikaanse mededingingsregels. In Trouw geeft Ben Van Rompuy, universitair hoofddocent Europees Mededingingsrecht, duiding bij de zaak.

This open access book investigates the transnationally connected history of Arab Christian communities in Palestine during the British Mandate (1918-1948) through the lens of the birth of cultural diplomacy.

KNOWMAK project aims at developing a web-based tool, which provides interactive visualisations and state-of-the-art indicators on knowledge co-creation in the European Research Area (ERA).

On 24 and 25 September 2021, the 20th Austrian European Law Day took place at the University of Liechtenstein on the topic of

What are the typical characteristics of teaching at research universities, and how is excellence defined and promoted? These are the key questions in the latest position paper published by LERU, the partnership of European research universities, including Leiden.

Statements made by Caroline van der Plas about nitrogen emissions and European law are incorrect: Armin Cuvyers on Dutch radio EenVandaag programme’s item ‘fact or fiction’.

Ahead of the new Multi-Annual Financial Framework (MFF), the entire European academic world is calling upon Brussels to double the budget for education, research and innovation.

From 14 to 15 September 2023, Simona Demkova, AI researcher at the Europa Institute, participated in the INDIGO Project Final Conference, where she provided valuable perspectives on the implications of AI for European public law.

The long awaited fifth edition of book ‘The Law of the European Union’ (formerly Kapteyn & VerLoren van Themaat) was launched on Friday 11 January 2019 at the T.M.C. Asser Instituut, The Hague.

The Grotius Centre unfortunately is not in a position to offer visiting fellowships or research positions, with the exception of visiting researchers within the framework of formal partnerships, such as the League of European Research Universities (LERU), or within the framework of common research p…

On 18 July, Olga Ceran held a presentation titled ‘Family law in a united Europe: Child abduction and child relocation’ at a summer school on 'European integration at the Franco-Spanish border: A cross-border perspective' which took place at the Cité des Arts in Bayonne (France).

This research paper was requested by the European Parliament's Committee on Civil Liberties, Justice and Home Affairs. It was published by the International Centre for Counter-Terrorism (ICCT) in The Hague. Leiden University is one of the participating institutes in this publication and our researcher…

Eva Michaels & Monika Sus examines European Strategic Autonomy (ESA) as the EU’s response to the fragmentation of the Liberal International Order.

Talha Gunay has been awarded the 2025 Diploma in the Law of the European Union by the Academy of European Law at the European University Institute (EUI).

On 24 May 2022, Christa Tobler gave a lecture on 'EU-Swiss Legal Relations: Why do we still not have an Energy Agreement?'

The Paramagnetic NMR Facility Leiden has been established to provide support to researchers who want to apply paramagnetic NMR spectroscopy to biomolecules. Support is offered in the design and synthesis of paramagnetic probes, either for general application (such as lanthanide tags and spin labels)…

Introducing five papers about of the impact of crises on the governance, decision-making, and institutional design of the Euro Area, political scientists Valerie D'Erman (University of Victoria, Canada), Paul Schure (University of Victoria, Canada) and Amy Verdun (Leiden University) summarise the 'lessons…

At the Universiteit van Nederland LIVE event about media, Maarten Lamers spoke about the question whether AI can be truly creative. His talk for a live studio audience was published as a video and a podcast.

The research within the Private International Law Department covers private international law, with a particular focus on the fundamental principles of formal private international law.

On 3 March the book “The European Union as an Area of Freedom, Security and Justice” edited by Maria Fletcher, Claudio Matera and Esther Herlin-Karnell was officially presented at a symposium at VU University Amsterdam.

The Europe Hub network currently spans over 60 researchers across 4 faculties at Leiden University. We especially foster thematic interfaculty research collaborations on a wide variety of societal challenges facing Europe. Here, you can read more about the four core thematic areas.

LERU, the League of European Research Universities, celebrated its fifteenth anniversary on 7 March in Brussels. The network of leading European universities has now grown to include 23 universities.

Our project focuses on the analysis of decision-making processes in the European Union (EU) and explores how approaches and tools to understand decision-making found in both the Natural and the Social Sciences can be linked, knowledge between these traditions exchanged and synergies utilized. To explore…

More than 800 universities have called on the European Council to come to be more visionary in its ambitions for European research, innovation and education. They believe the current budget to be insufficient.

Matthias Haentjens, Jouke Tegelaar and Dorine Verheij have recently published the chapter Financial Market Regulation and Supervision in the new volume of the prestigious The Law of the European Union (previously Kapteyn and VerLoren van Themaat).

A month after the event, we can say the inaugural lecture of Prof. Luuk van Middelaar on “The European Union and the politics of events”, on 23 September 2016, has obtained good coverage in the Dutch national media.

Just published: United in incoherence – Private law concepts under pressure from European financial law (in Dutch), in: Tijdschift voor privaatrecht 2017-4

Simona Demková, Assistant professor at the Europa Institute of Leiden University, publishes her book ‘Automated Decision-Making and Effective Remedies: The New Dynamics in the Protection of EU Fundamental Rights in the Area of Freedom, Security and Justice’.

Overview of the main research projects at the Leiden Papyrological Institute.

Research at the Grotius Centre for International Legal Studies is primarily carried out under its Research Programme ‘Exploring the Frontiers of International Law’.

Impressions by Dr. Lilian Ruhe

A portrait of the complex historical process of over 500 years of European colonialism in the New World.

The newly established Luxembourg Centre for European Law held its inaugural conference on 10-11 October 2025, exploring the theme of 'European Union law and values in a changing world'.

How do processes of coalition-formation influence patterns of decision-making in the European Union?

Enduring influence of Roman law

Consensus among Member States on the return of failed asylum seekers is currently lacking. For that reason, the Head of the European Commission, Ursula von der Leyen, wants new legislation that provides for a uniform policy. Armin Cuyvers, Professor of European Law, commented on the issue on Dutch radio…

Leiden University and LUMC benefit from unique knowledge gained from research and teaching about healthy lifestyles. We want to bring this knowledge together into one place, and we want to share it even more effectively than we do now.

The European Parliament is set to vote on the approval of the new Commission, and some Parliament members have already expressed concern over the controversial appointment of Olivér Várhelyi to the role of commissioner. Armin Cuyvers, Professor of European Law, discusses this issue in Dutch financial…