Migrants are far less of a burden on the budget of European countries than is often thought. This is the conclusion of research by economists from Leiden University.

The word bureaucracy does not have negative connotations for Ken Meier. Meier, Professor of Bureaucracy and Democracy, has a clear grasp of the relationship between elected politicians and bureaucracy, or the civil service. Inaugural lecture on Monday 20 May.

Meet the core staff behind Global Transformations and Governance Challenges.

Following the recent debate on the formation of a new Dutch government, there seems to be no clear definition of an extra parliamentary cabinet. Wim Voermans, Professor of Constitutional Law, discusses this in Dutch magazine ‘Vrij Nederland’ (VN).

The Thomson Reuters Journal Citation reports for 2015 are now available.In the field of law Common Market Law Review (CML Rev) is the highest ranked non-US law journal. CML Rev is also the highest ranked journal on European Law. On Google scholar, CML Rev is ranked # 1 in the top journals on European…

What defence strategy should the Dutch government adopt for the next four years? Our experts advise investing in social resilience, strengthening ‘soft power’ and integrating defence awareness into education.

In this article, Madeleine O. Hosli and Wen Pan examine how intergovernmental dynamics shaped the European Stability Mechanism, using Liberal Intergovernmentalism to assess negotiation phases, the influence of major member states, and which theoretical assumptions hold or need qualification.

This article explores the concept of issue prioritisation within the context of public administration research, focusing on decision-making processes.

Dutch newspaper Trouw investigated the tax position of multinational Cargill. Their conclusion? Cargill appears not to pay taxes over their profits. Trouw asked Jan van de Streek, Professor of Tax Law, and PhD candidate Josephine van der Have for an explanation. Prior to this, Van der Have had also…

Vasiliki Kosta acted as one of two expert mentors for the working group on academic freedom in the ‘Our Rule of Law Academy’.

Nowadays, it is almost impossible to imagine warfare without unmanned aerial vehicles, or drones. For instance, they have been deployed in the war in Iraq and Afghanistan. Are the current laws of war adequate to address the use of drones? PhD candidate James Welch will defend his thesis on 21 March.

‘Visibility and secrecy are both valuable tactics and should not be antagonized in LGBT movements, ’ says Jingshu Zhu. Zhu will defend her dissertation on Wednesday 21 February. Time for a short interview with the PhD candidate.

Is EU law still supreme? Most national high courts have formulated some limits on the absolute supremacy claimed by EU law.

Rianne Letschert, Universiteitsbestuur in Maastricht krijgt de opdracht een nieuw meerderheidskabinet te formeren. Ondanks haar Haagse outsiderstatus tonen partijen vertrouwen. Wim Voermans, hoogleraar Staatsrecht, is te gast in Pauw & De Wit om te praten over de nieuwe formateur.

The Advisory Committee on Public International Law (Dutch abbreviation CAVV) is an independent body which provides the government and parliament of the Netherlands with advice, both solicited and unsolicited, on issues related to public international law.

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'.

The European Society of International Law (ESIL) awarded its 2020 Book Prize to Daniel Peat, an Assistant Professor of Public International Law at the Grotius Centre for International Legal Studies at Leiden Law School. The ESIL Book Prize is awarded annually 'for an outstanding published work in the…

The Leiden Institute of Advance Computer Science (LIACS) in collaboration with the Institute of Security and Global Affairs (ISGA) have developed the minor Cyber Security to provide students with a mixture of technical and governance knowledge to set them on a path towards understanding cyberspace and…

From 16 to 20 June 2025, the Institute of Security and Global Affairs of Leiden University hosted the annual Summer School The European Union, the United Nations and Global Governance in The Hague. The programme brought together recent graduates, PhD students, and young professionals from a variety…

How should European financial law best integrate considering the interaction of the relevant legal systems?

On 27 November 2018, the Center for Legal and Comparative Studies of the East African Community of Leiden University (LEAC) is organizing, in close cooperation with Strathmore University Law School, the University of Nairobi Law School and the IRID, the Fourth LEAC Conference on the topic “Teaching…

The Institute of Criminal Law and Criminology’s ‘Vulnerable Groups and Inequality’ research project draws on a number of disciplines.

In October, Sophie Starrenburg was elected as a member of the Coordinating Committee of the ESIL Interest Group on the International Law of Culture. She will work alongside Giovanni Carlo Bruno (Italian National Research Council), Andrzej Jakubowski (Polish Academy of Studies), and Lucas Lixinski (University…

On Friday 2 June 2023, Vincent Delhomme, Assistant professor at the Europe Institute at Leiden Law School, successfully defended his PhD thesis entitled : ‘Regulating lifestyle risks in EU law: Promoting health in a diverse market’.

On 7 April 2017 Labour Law professor Heerma van Voss spoke on reduction of working time in European countries during the economic crisis at the Hungarian Academy of Sciences in Miskolc, Hungary.

A clear, unambiguous definition of an extraparliamentary cabinet still seems to be missing in the political arena of The Hague. Caroline van der Plas, Farmer–Citizen Movement (BBB) party leader, wants to discuss this issue with the party chairs of the Dutch coalition parties. Wim Voermans, Professor…

Students attending Richard Albert’s seminar on constitutional change asked Reijer critical questions about an article he recently wrote with Maarten Stremler.

We are glad to present our new research report on Exploring the Frontiers of International Law (EFIL). International Law has traditionally been one of the flagship areas of the Leiden Law School. The report provides a taste of our rich research agenda in international law.

On Wednesday 22 November 2017, Professor Luuk Van Middelaar delivered the closing lecture for the EU Institutional Law and General Principles of EU Law-course of the regular LLM-programme in European Law.

Vasiliki Kosta has been appointed Emile Noël Fellow at the Jean Monnet Center of New York University (NYU) School of Law after a competitive selection process.

In October 2020, the Dutch Journal of Administrative Law had a special PhD issue, giving an overview of all PhD research currently being conducted in the area of administrative law in the Netherlands.

Intensive public debates have erupted about integration of immigrants in Europe. The influx of refugees from the middle east during the summer and autumn of 2015, the increasing visibility of immigrants throughout European societies, but also the widely publicized occurrences on New Year’s eve in Cologne…

This paper series is the result of two rounds of PhD workshops organized by the editors at the TMC Asser Institute and Leiden University in 2024 on ‘The legal implications of the EU’s geopolitical awakening’, with the generous financial assistance of the Municipality of The Hague.

The Global Summit on Constitutionalism took place from 16 to 18 March. Wim Voermans, Gert Jan Geertjes and Rowie Stolk, from the Department of Constitutional and Administrative Law, travelled to Austin where the conference was organised by the School of Law of the University of Texas at Austin.

On 15 May the Space Law Moot Court Competition was held in the council chamber of Leiden Town Hall, organised by the International Institute of Air and Space Law (IIASL).

On Wednesday 9 March, a Faculty meeting about the war in Ukraine was held for staff and students in the Lorentz Lecture Hall. By the time the meeting started at 17.00 hrs, the 220 available seats in the lecture hall had been filled mainly by large numbers of students.

Vasiliki Kosta presented her research on ‘The EU fundamental right to freedom of the arts and sciences: exploring the limits on the commercialisation of academia' at the Maastricht Centre for European Law on 28 February 2023. The seminar was convened by Dr Annalisa Volpato, and Dr Vigjilenza Abazi acted…

During the 55th Leiden-London meeting, held on 25 June 2016 in Leiden, the Editorial Board of the Common Market Law Review awarded the 2015 Common Market Law Review Young Academics Prize to Dr Anna Wallerman, for her article entitled “Towards an EU law doctrine on the exercise of discretion in national…

Sofia Ranchordas (1985) has been appointed Chair European and Comparative Public Law and Rosalind Franklin Fellow at the University of Groningen. She will start this position on October 1st.

From Friday 29 till Sunday 31 March 2019, the third edition of the Ian Fletcher International Insolvency Law Moot (Moot) was held at the Singapore Management University in Singapore. For the first time, a team from Leiden University took part in this prestigious competition. With success, the team qualified…

Veel overheidsorganisaties hebben nog te weinig kennis van de Wet open overheid (Woo), ‘wat zorgt voor frustratie bij verzoekers en onzekerheid bij derden’, zegt Annemarie Drahmann, universitair hoofddocent Bestuursrecht en Woo-expert in iBestuur.

The Graduation Ceremony 2022 of the master's Law & Society took place on 7 September 2022 in the Telders Room of the Academy Building in Leiden.

During the 57th Leiden-London meeting, held on 30 June 2018 in Leiden, the Editorial Board of the Common Market Law Review awarded the 2017 Common Market Law Review Young Academics Prize to Dr Ermioni Xanthopoulou, for her article entitled “Mutual Trust and Rights in EU Criminal and Asylum Law: Three…

In this special edition of Information Polity there is a focus on the transparency challenges of using algorithms in government in decision-making procedures at the macro-, meso-, and micro-levels.

On 27 February, Rodrigo Pica, Secretary of Chile’s Constitutional Court, gave a lecture to the students of the Advanced Master’s in European and International Human Rights Law at Leiden Law School.

On April 19, 2018, the University of Vienna organized an international conference on the topic of equality bodies.

On 17 February 2016 Armin Cuyvers was invited to speak at the Liverpool European Law Unit (LELU) in a seminar on ‘Legitimacy and participation in the EU’. In his presentation, entitled ‘National parliaments as training wheels of EU democracy?

On 10 September 2020 the European Law Institute (ELI) launched the book Rescue of Business in Europe. The volume presents the results of a study led by Prof. Em. Bob Wessels (Leiden University, The Netherlands) and Prof. Stephan Madaus (Martin-Luther University, Germany), assisted by Gert-Jan Boon (Leiden…