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…

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).

Drawing on insights from past and contemporary scholars and world leaders, the report explores the concepts of a new social contract, a new global deal, and networked and inclusive multilateralism introduced recently by Secretary-General António Guterres to help the United Nations better grapple with…

On 3 December 2019, Meda Couzens defended her thesis 'The application of the United Nations Convention on the Rights of the Child by national courts'. The doctoral research was supervised by Prof. T. Liefaard and Prof. J.J. Sloth-Nielsen.

On 18 September 2019, Huw Llewellyn defended his thesis 'An Institutional Perspective on the United Nations Criminal Tribunals: Governance, Independence and Impartiality'. The doctoral research was supervised by Prof. N.M. Blokker and Prof. L.J. van den Herik.

Political Scientist Valentina Carraro (Leiden University) devises a framework to assess the degree to which United Nations human rights bodies provide duplicating or contradicting recommendations to states. Focusing on the case of torture, she creates an original database of recommendations delivered…

This handbook is aimed at a wide readership interested in developing an understanding of the political, economic, and social complexity of Eastern Europe. It covers Central Europe, the Baltic republics, South Eastern Europe, and the Western Balkans, as well as all the countries of the former Soviet…

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

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

Historian Alanna O’Malley has been appointed to a brand-new Professorial Chair in United Nations Studies in Peace and Justice in The Hague. This extra attention for the UN comes at a significant moment in world history, she says.

On Thursday 15 February 2018, the Hazelhoff Centre for Financial Law welcomed Roel Janssen, financial and economic journalist and writer, for the fifteenth Hazelhoff Guest Lecture.

Recently, Ingrid Leijten’s book Core Socio-Economic Rights and the European Court of Human Rights was published with Cambridge University Press. The monograph was published in the series Cambridge Studies in European Law and Policy (edited by Laurence Gormley and Jo Shaw) and deals with the protection…

This book, written by two representatives of Leiden Law School, describes the framework of the European Insolvency Regulation (recast) (‘EIR Recast’), in force since June 2017.

“United Nations peacekeeping is a proven investment in global peace, security, and prosperity. Together, let us pledge to do all we can to enable that mission to succeed”. – Secretary-General António Guterres

Linde Desmaele explores how the United States is recalibrating its stance on European unity amid growing strategic competition with China.

The term “Lone Actor” has been applied to a variety of violent individuals who are thought to act out of ideological motivations using terrorist tactics.

The corona crisis is also a disinformation crisis for the global community in general, and for the European Union (EU) in particular. What is less clear is how adequate the EU’s response to the ‘infodemic’ has been. This essay exposes the dangers of disinformation for the EU, which have intensified…

Young academics often face uncertainties in their academic careers. It is for precisely this reason that Leiden postdocs recently united in a representative body. The Leiden University Postdoc Assembly (LUPA) wants to be a positive force for change, says Eduard Fosch-Villaronga.

Dr. Joris Larik, Assistant Professor of Comparative, EU and International Law at LUC The Hague, has co-authored a report entitled 'UN 2.0: Ten Innovations for Global Governance 75 Years beyond San Francisco'.

This book aims to unravel some of the mysteries surrounding this exceptional group of larger-than-life Bronze Age blades.

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…

Lecture

An algorithm is discussed to compute the exponential representation of principal units in a finite extension field F of the p-adic rationals.

This paper investigates possible convergence of issue salience of terrorism among citizens within the European Union for ten jihadist attacks in the period 2015–2017 using Eurobarometer survey data.

This book focuses on policing in city-regions in Europe bringing together experts from across the continent to develop a sociology of urban policing and a unique methodology for comparing different metropolises in the same country.

As of September 2026, Leiden University’s Europe Hub will be offering a new interdisciplinary minor: European Approaches to Societal Challenges.

In the present-day United States, to what degree(s) are far-right men and women similar and/or dissimilar in their motivating factors for engaging in far-right social movement activism?

The European Elections are approaching and we get to take a trip to our local polling station. But the turnout in the Netherlands is likely to be low and who exactly do we get to vote for? Rik de Ruiter, Associate Professor at the Institute of Public Administration, explains the two political dilemmas…

In this article, Linde Desmaele examines the dilemmas created by US burden sharing policies from the perspective of Washington's European protégés.

On 7 May, Aleksandre Zardiashvili defended the thesis 'Power and dignity: the ends of online behavioral advertising in the European Union'. The doctoral research was supervised by Bart Custers and Simone van der Hof.

The 9th Network Europe Conference in Edinburgh was held at June 2017 in Edinburgh and organized by the Europa Institut Zurich. The contributions of the conference are now published.

As a research project between four Jean Monnet Chairs - two located in Europe, one in Canada and one in the U.S. -- the project DEUBAL has been approved in 2010 for co-financing by the European Commission. DEUBAL aims to study changes in European decision-making due to the Lisbon Treaty, by a combination…

In this article, Joris Larik and Richard Ponzio grasp the importance of the Summit of the Future to overhaul and strengthen multilateral cooperation in an age of deepening rifts and increasing competition between the great powers. This article argues that a failure to convene a meaningful and ambitious…

The drafting of a handbook that serves as the first guide to European law in the area of children's rights, taking into account the case law of the European Court of Human Rights and the Court of Justice of the European Union (CJEU), as well as the decisions of the European Committee of Social Rights…

In this article, Adriana Cerdeira and Dovile Rimkute explore how certain dynamics shape banks' behaviour.