On 9 September 2020, Ruben de Graaff defended his thesis 'Concurrence in European Private Law'. The doctoral research was supervised by Prof. A.G. Castermans and Prof. S.C.G. Van den Bogaert.

European policy affects our lives: from air quality to the frequency of a bus service. Leiden researchers analyse how the European Union functions, how countries apply European policy and whether this policy actually provides solutions and delivers.

In this article, Madeleine Hosli, Professor of International Relations at the Institute of Security and Global Affairs, and Jaroslaw Kantorowicz, Assistant Professor at the Institute of Security and Global affairs, discusses the relevance of structural variables in a time where European politics are…

How do crises produce changes in specific European Union foreign policy areas, and how should we conceptualise these policy changes?

Cristina Grasseni’s project

This edited volume offers a critical discussion of the trade-offs between transparency and secrecy in the actual political practice of democratic states in Europe. As such, it answers to a growing need to systematically analyse the problem of secrecy in governance in this political and geographical…

What are the environmental trade-offs for SMEs considering moving from monoculture aquaculture practice towards IMTA? What are the environmental trade-offs comparing IMTA species with their conventional monoculture alternatives?

This book is the first comparative study of estimative intelligence and strategic surprise in a European context, complementing and testing insights from previous studies centred on the United States. It does extensive empirical analysis of open-source material and interviews in relation to three cases…

Grasseni's contribution to this special feature on food cultures, food systems, and agriculture in Europe builds upon her ongoing project Food citizens? Collective food procurement in European cities: solidarity and diversity, skills and scale.

On 7 September 2023 Didem Durak Akser successfully defended a doctoral thesis and graduated.

The book addresses the question “How and why do people become involved in European homegrown jihadism?

The Master’s in European Union Studies at Leiden University offers students an opportunity to study the EU from multiple disciplinary perspectives.

The first results of the “Policing European Metropolises project” (PEMP) that associate Professor Elke Devroe and Professor P. Ponsaers launched in April 2013 are now published. Having been the referent for The Netherlands and Belgium in the Urbis project (Leonardo programme), the project focuses on…

Brexit has been a kind of shock therapy for the EU and has eventually led to more appreciation for European cooperation. That is what Professor Luuk van Middelaar claimed on 30 November at the conference ‘Brexit and the future of the European Union’ which marked the 60th anniversary of the Europa Institute…

The European courtroom as political arena? Judicial interference in politically charged issues in European asylum law and criminal law

On 13 February, Professor Matthias Haentjens spoke at the conference “Proportionality in European Banking Regulation” at the Bank of Greece. This conference was organized by the Greek central bank, in cooperation with the University of Piraeus and the European Banking Institute (EBI).

Project leader Esther Kentin has published an article on the European chemical regulation REACH and the restriction of microplastics in a physics journal.

In the unique two-year international joint Master’s programme in European Politics and Society (EPS) you will be able to study at four major European research universities in the cities of Prague, Leiden, Krakow and Barcelona.

The Law of the European Union is a complete reference work on all aspects of the law of the European Union, including the institutional framework, the Internal Market, Economic and Monetary Union and external policy and action.

European integration is under pressure. At the same time, the notion of a European administrative space is being explicitly voiced. But does a shared idea of the public servant exist in Europe?

The annual excursion of the Adv. LLM programme in European and International Human Rights Law (EIHRL) took place from Sunday 16 to Saturday 21 April.

Context and contents of the Izcatqui manuscript in the Royal Tropical Institute, Amsterdam

This dissertation approaches collections of Andean mummies in European national and university museums as the focus to understand the relationship between objects, documents, and the practice of collecting in the period from 1850 to 1930. Over 200 mummies, kept by 18 different museums in Western European…

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.

A look into the political history of collecting and the collections of Andean mummies in Western European museums from 1830-1930 through archaeology and paleoimaging.

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

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…

Leiden University takes part in several European research and education projects.

This paper, written by Silvia D'Amato & Andrea Terlizzi, investigates the extent to which the European Union is strategically engaging against terrorism.

Rodrigues delivered a presentation at the 13th Network Europe Conference on 'European Integration Perspectives in Times of Global Crisis', which took place in Athens from 19 to 22 June 2022 and was organised by the Europa Institute Zurich (EIZ). His contribution was entitled 'Reform Scenarios for EU…

This paper develops a novel theoretical framework for the conduct of postmortems after major foreign policy surprises for the European Union and its member states.

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).

Our research deals with the deep history of Europe and Eurasia, from the inception of farming up until the beginning of the Roman Period. This was a period in which key developments took place that had a profound impact on European landscapes and society until the present day. Our research and teaching…

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…

The project Advancing The European Multilingual Experience (AThEME) studied multilingualism in Europe by incorporating and combining linguistic, cognitive and sociological perspectives.

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

Does a shared idea of the ‘public servant’ exist in Europe? Sager, Overeem, and others explore.

Nietzsche says

This research concerns a network of labour law specialists in the EU. The growing internationalization of the economic market and the employment market has a major impact on legislation and research of labour law. Particularly within the European Union labour law is subject to constant development…

European Law is a one-year Master’s specialisation at the internationally renowned Leiden Law School at Leiden University. The programme distinguishes itself by its broad intra-disciplinary approach, covering institutional, constitutional as well as internal market and competition law of the EU in addition…

The researchers examine the Council of the European Union's voting behaviour between 2010 and 2021 and the impact of different independent variables.

The European Union acts as one of the most powerful economic actors in the global economy, presents itself as the most successful integration project in recent history, and deploys one of the largest diplomatic services in the world. The European Union Studies minor offers a comprehensive and multi-disciplinary…