Port cities develop at the intersection of international trade and commerce and at the interface between sea and land. What does the future of port cities look like with urbanization, sea level rise, new migrant flows and the disappearance of old industries? This is addressed in the minor (Re)Imagining…

Discover the MSc The Politics of Artificial Intelligence at Leiden University: analyse who designs, controls and benefits from AI while using core Political Science theories to address regulation, ethics and global impact.

Wim Klooster and Gert Oostindie present a fresh look at the Dutch Atlantic in the period following the imperial moment of the seventeenth century. This epoch (1680–1815), the authors argue, marked a distinct and significant era in which Dutch military power declined and Dutch colonies began to chart…

Nico Schrijver professor emeritus in Public Law and State councillor at the Council of State has been appointed by the European Union and the United Kingdom as a member of the Arbitration Panel which is authorised to settle disputes on the EU-UK Withdrawal Agreement.

Below you will find an overview of the publications of The Leiden Advocacy Project on Plastic.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Science with two Colombian universities, Universidad Nacional de Colombia and Universidad de Antioquia.

NETHATE is a Marie Skłodowska-Curie Actions (MSCA) project seeking to investigate the roots, societal impact and mitigation strategies of hate in offline and online foras.

Research goal: To support the design of technologies (counter-measures and communication measures) for the prevention, interdiction and mitigation of lone actor extremist events (LOEEs), which are hard to anticipate, yet can be highly damaging to local and national communities and therefore must be…

SOLID: Solidarity under strain - A legal, criminological and economic analysis of welfare states and free movement in the EU. Analysing the ways in which immigration structurally challenges and changes the organization and conceptual boundaries of national welfare states.

Get the most out of your studies at Leiden University by taking part in our extracurricular activities.

Are you considering starting a master’s programme in Psychology at Leiden University and are you planning on pursuing a career in health care outside of the Netherlands? If so, then before your start your studies, make sure to check if your preferred country has special requirements to work as a psychologist,…

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”. Martijn was invited to speak about the relationship between European values and democracy.

Is the legitimacy of law and governance of multilevel jurisdictions diminishing? What is the significance of (diminishing) legitimacy for the effectiveness of law? These kinds of questions about the legitimacy of the supranational formation of law, its application, and the policy and governance based…

On 30 July, Jorrit Rijpma spoke on Dutch BNR news radio programme Spitsuur about the call from ANVR, the Dutch travel sector organisation, for European travel guidelines to be provided.

Since 1919 the International Labour Organization (ILO) has been promoting the rights of workers worldwide. On 7 February, Leiden University hosted the symposium celebrating the 100-year anniversary of the foundation of the ILO. Leiden emeritus professor of International Labour Law Paul van der Heijden…

Leiden University’s Europe Hub invites submissions from all faculties for its annual Europe Hub master's thesis prize by 1 September 2025.

The Executive Board has decided to appoint Dr. Antoaneta Dimitrova as Professor Comparative Governance within the Institute of Security and Global Affairs, starting on 1 September 2017.

Lecture, European Union Seminar

How can groundbreaking research help Europe tackle the huge challenges it faces? At the launch of the Leiden Europe Hub, academics and policymakers discussed this in the heart of European democracy: the European Parliament.

Olivier Morskate studied Public Administration at Leiden University and did an internship at the European Parliament's Liaison Office.

CompaRe aims to be a hub in a global network on comparative regional integration. For regional integration is key to meeting the challenges of our globalising world. The LEAC is now also part of the CompaRe.

Op 17 November 2020, Shuai Guo defended his thesis 'Recognition of Foreign Bank Resolution Actions'. The doctoral research was supervised by Prof. R.D. Vriesendorp and Prof. M. Haentjens.

This paper written by Alexandre Afonso, Assistant Professor and Researcher at Leiden University, argues that gender norms and the political strength of the left were important structuring factors regarding why European countries choose migrant labour to expand their labour force in the decades that…

Research within COI@Leiden is clustered around two themes: sustainable justice and the courtroom as a social arena. Find out more about each of these projects by clicking on the links below.

Dr Madalina Busuioc has completed a study for the European Parliament titled

Organizations often announce their protest activities prior to their implementation to mobilize awareness, recruit supporters, and receive media attention. We are interested in the effectiveness of protest announcements—that is, under what conditions governments make concessions to avoid having an announced…

EnSMiRT seeks to harness expertise within the Una Europa alliance and foster collaborations between leading researchers working on several stages of the mineral value chain to address these pressing challenges head-on.

Joris Larik, Assistant Professor at Leiden University, wrote about the topics of the Brexit, the EU-UK Withdrawal Agreement, and Global Treaty (Re-)Negotiations.

Religion, Class, and the Postwar Development of the Dutch Welfare State. Dennie Oude Nijhuis.

The main aim of the project is to collect and update on a regular basis bibliometric and patent indicators that can be used to underpin and inform analyses pursued at the European Commission (EC) to assess European and national scientific and technological performance.

The one-year Master’s in International Relations offers an exciting and challenging mix of theoretical knowledge and practical experience.

Lecture, European Union Seminar

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…

On Saturday 25 June, the Europa Institute of Leiden University hosted the 61st Leiden-London Meeting, an annual event organized jointly by the Europa Institute and the British Institute of International and Comparative Law (BIICL). This year’s meeting had “Interdependence, cooperation and strategic…

Simona Demková from the Europa Institute participated as a key speaker at the annual Digital Constitutionalism Academy on 27 and 28 March 2025. The Academy brought together leading scholars and practitioners to explore the evolving intersection of digital innovation, fundamental rights, and regulatory…

Following developments in the US, the EU has now also opened the door for large-scale State aid to its own sustainable industries. A means to curb China’s power. However, this plan is driving the EU and the US apart.

Victims who claim damages from large corporations for the harm caused by an infringement of competition law are often powerless in the European Union. How could collective actions enhance their position? Zygimantas Juska will defend his doctoral thesis on 23 April.

Following the European Union membership referendum in the United Kingdom on 23rd of June 2016 and its result, Brexit has turned into a theme dominating public discussion in Europe and beyond.

In Europe, citizens have a right of access to government information. The European Commission, however, has various methods to prevent this. For example, destroying all e-mails, invoking state security and protection of privacy, and not taking minutes. As a result, it is almost impossible to review…

What has European integration meant for the role and powers of Heads of State? And what should it mean, both at the EU and at the national level?

On 28 and 29 August, Dr. Ben Van Rompuy and Dr. Armin Cuyvers gave a two-day training to the Competition Commissioners of the newly established East-African Competition authority.

Furious protesters in Budapest and other Hungarian cities demand the departure of Prime Minister Viktor Orbán. The reason for the large-scale protests is the adaptation of the labor law, especially lucrative for German companies and investors, by the Hungarian prime minister.

Last week, Dr. Larik’s article entitled

Dr. Moritz Jesse, Associate Professor at the Europa Institute, presented his paper ‘Building Bridges or Erecting Walls? – The Application of Equal Treatment and Non-Discrimination in Europe ‘ at the annual meeting of the Law and Society Association.

Moritz Jesse, associate professor European Law at the Europa Institute Leiden, delivered a lecture on the Social integration of third-country nationals.

The Advisory Council on International Affairs (AIV) has issued an opinion on possibilities for reform within the European Union (EU) in the area of Common Foreign and Security Policy (CFSP), the EU budget, and protecting the rule of law.