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.

AI has huge societal and economic potential and is widely used. But it also brings challenges: how do we combine human values with AI, how do we make AI more transparent and understandable, and what can AI and human cognition learn from each other, for example about language learning?

On 20 June 2025, Melanie Fink presented her research on ‘Robo Swarms and Polygraphs: The Future of European Border Management and its Human Costs’ at the Research Workshop on ‘Migration law at the intersection of international, EU and domestic law: institutional structures and the protection of human…

In the Surveillance and Security Threat Monitor 2022-2023, the research project thematically examined threat developments.

How can we understand the implementation of EU policy and what challenges are involved?

Netwerk en projecten duurzaamheid verduurzaming green office en green team

Are you interested in an economics programme that takes a multidisciplinary approach? The bachelor’s degree Economics and Society combines economics with political science and law, allowing you to understand the most pressing economic and societal challenges from various perspectives.

A study into the use of strategies in listening to French news reports

On 3 November 2021, Lucas Noyon defended the thesis 'Strafrecht en publieke opinie'. The doctoral research was supervised by Prof. J.H. Crijns and Prof. J.W. de Keijser.

Dutch book about pesticides and waterquality

Encyclopedie en Filosofie van het Recht is a specialisation of the master’s programme Rechtsgeleerdheid (Law) at the renowned Leiden Law School of Leiden University. This unique programme considers the philosophical issues and concepts upon which law is founded, in the broadest sense.

The place of European states and institutions in world politics is the core focus of this pillar. Research on this theme concerns European actors’ ability to promote peace, security and justice in their neighbourhood and to shape the future of global governance by translating its economic size into…

The European Council and the European Commission have a similar role in agenda setting. Both place issues on the EU agenda. However, these institutions have distinct designs. They have different political attributes (the European Council has considerably more political authority) and information-processing…

The Centre for the History of European Integration (CHEI) is an initiative that brings together scholars working on European integration, broadly conceived, from a historical perspective.

De Pagus Renensis van de 4de tot de 8ste eeuw na Chr.: Een archeologische synthese

On December 6th, Bob Schoemaker succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Bob on this great result.

Data reuse and big data: a taxonomy for personal data reuse.

This presentation is presented in Dutch

This presentation is presented in Dutch

What political factors affect the speed or duration of EU legislative decision-making?

International Relations and European Politics is one of the three organisational clusters of the Institute of Political Science.

Set up in 1991, this unique project aims to identify and describe the common lexical heritage of the most important Indo-European languages and language branches. The project has thus far resulted in twelve volumes published as The Leiden Indo-European Etymological Dictionary Series (Brill, Leiden).

You can find more information on the Dutch webpage. Click on the “Nederlands” button above.

On 26 February 2020, Hans-Jan van Kralingen defended his thesis 'De ondeelbaarheid van het pand- en hypotheekrecht, deconstructie van een leerstuk'. The doctoral research was supervised by Prof.mr. W.J. Zwalve and Prof.mr. E. Koops.

This publication is in Dutch.

The dissertation focuses on the work of German philosophers Theodor W. Adorno and Max Horkheimer, founders of critical theory at the Frankfurt School. Specifically, it is a study of the “early” writings, dated between 1925 and 1940, to reconstruct the early stages of critical theory. The thesis argues…

The study at hand focuses on the control of sex and youngsters through the response by authorities most notably from within criminal justice.

Study information

The new project INFLANET will train young scientists in Europe to become experts in inflammation research. Professor Annemarie Meijer from the Institute of Biology Leiden coordinates the training.

EUROTYPES is a research project developed by political scientist Adina Akbik, for which she recently received a European Research Council Starting Grant. Her aim is to examine the impact of cultural stereotypes in European multi-level policy enforcement. One of EUROTYPES' innovations lies in its focus.…

Our Master Law in European and International Human Rights Law (LL.M.) looks at the various human rights protection mechanisms from a comparative perspective

How do psychology, culture, politics, and upbringing influence our lives in a rapidly changing world? What is the role of education and development, and how do cultural differences shape our society? In the minor "Introduction to Social Sciences: Human Behavior in a Changing World" (30 EC), you will…

In dit onderzoek van de Universiteit Leiden kijken we hoe vaders en moeders de zwangerschap en de overgang naar het ouderschap ervaren.

On 18 september 2018, Claudia Bouteligier defended her doctoral thesis 'Dialoog in recht en literatuur. The doctoral research was supervised by Prof. mr. dr. A. Ellian.

Sustainability and the law lecture series featuring guest speakers discussing legal and social aspects.