International organisations that represent collaborations between States are becoming increasingly more powerful, and they have an increasing impact on our daily lives. For example, the European Court of Human Rights in Strasburg established that minors have a right to legal aid immediately following…

Leiden University’s Master of International Civil and Commercial Law (L.L.M.) examines the interrelated layers of hard law, soft law, and relevant case law.

This week, Prof. Luuk van Middelaar (Europa Institute) publishes Alarums & Excursions: improvising Politics on the Europen Stage – a revised update of his 2017 book on the decade of EU crises.

State utilization of 'hukum adat' and its implication for the Indonesian rule of law

This article by Danielle Goldwert, Sara Constantino, Jaroslaw Kantorowicz and colleagues presents one of the largest behavioral 'megastudies' to date, testing how different interventions can stimulate public, political and financial climate advocacy.

Growing public backlash against international organizations (IOs) and attacks of national political elites on the rule of law increasingly challenge governance by IOs.

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

On Thursday 11 May 2017, Qiang Yu defended his doctoral thesis ‘Market Power and Competition Law in the Software Industry’. The supervisors of the research are Professor T.R. Ottervanger and Professor S.C.G. Van den Bogaert. A brief summary of his thesis is provided below.

Leiden University hosted the second annual PhD workshop on European and International Insolvency Law organized by the Foundation Bob Wessels Insolvency Law Collection (BWILC). The event that provided PhD candidates from universities all over Europe the chance to discuss their research with fellow PhD…

The Duke-Leiden Institute in Global and Transnational Law is a one-month programme providing a strong foundation for those interested in international and comparative law as well as for those planning to study law in the United States. The programme will focus on subjects such as trade agreements, human…

Law and peace in the work of Hans Kelsen. A re-evaluation of Kelsen’s legal philosophy: legal pacifism as tacit meaning of his Pure Theory of Law

This book explores the relationship between tragedy and the justice that is sought in moral philosophy and the law. It shows how our moral and legal judgments can be seen as aesthetic or tragic judgments, and it considers what kind of passion or vocation moves the science and scholarship of law.

On 9 April 2019, Yudan Tan defended her thesis 'The Rome Statute as Evidence of Customary International Law'. The doctoral research was supervised by Prof. dr. W.A. Schabas.

Questions of justice are not only the concern of legal professionals, politicians and activists, they also permeate culture at large. Literature, Cinema, Music and Artworks often revolve around questions about rights, justice and fairness, raising a wide range of issues, such as: how do we understand…

On 21 February 2019, Ruben Zandvliet defended his thesis 'Trade, Investment and Labour: Interactions in International Law'. The doctoral research was supervised by Prof. dr. N.J. Schrijver.

How can we assist Universitas Indonesia's department of International law to improve their educational and applied research programs on Transnational Law, Asset Recovery and International Investment Arbitration, with an eye on Indonesia’s security and rule of law reform agenda and the needs of the…

PhD candidate Shekinah Dare researched which psychological factors contribute to responsible financial behaviour and well-being. She wants to use this knowledge to develop interventions to encourage people to manage their money better. PhD ceremony on 10 November.

‘Visibility and secrecy are both valuable tactics and should not be antagonized in LGBT movements, ’ says Jingshu Zhu. Zhu defended her dissertation on Wednesday 21 February.

On 14 September, Erik Plas defended the thesis'Material amendments to public contracts in public procurement law'. The doctoral research was supervised by Jan Hebly and Bart Krans.

This research studies the future perspectives for Malaysian space law. It aims at demonstrating the development of Malaysian outer space activities inclusive of her status with respect to United Nations space conventions and her membership of international and regional space-related organizations.

During the programme we will prepare you for your career as a legal professional in a global legal environment. Read more about the career preparation activities

Are you thinking about studying European and International Human Rights Law? Learn more and watch the videos.

Are you thinking about studying European and International Business Law? Learn more and watch the videos.

On Thursday 7 and Friday 8 December 2017, Leiden University’s Hazelhoff Center for Financial Law and the European University Institute in Florence jointly organized a PhD workshop in Leiden.

Fear of repayment demands is causing people to forgo benefits and financial support, even when they are eligible. This was one of the finding of Olaf Simonse in his PhD research on financial stress and the non-use of social services. His proposal: 'Let the government take the initiative.'

On 8 July 2020, Andres Sarmiento Lamus defended his thesis 'The Proliferation of Dissenting Opinions in International Law'. The doctoral research was supervised by Prof. L.J. van den Herik and Prof. Y.A.A.S. Radi (UCLouvain).

On Wednesday 13 December at 16.15 hrs René Hage will defend his doctoral thesis entitled ‘Handhaving van privaatrecht door toezichthouders’ (Enforcement of private law by regulatory authorities) at the Academy Building of Leiden University. His supervisors are Professor Jaap Hijma and Dr Iris Houben…

On Friday 2 December 2016, an international, multidisciplinary Research Conference on “Private law and market regulation – interaction, interference or inconsistency?” will be held in Leiden, hosted by the Coherent Private Law research group of Leiden Law School. The conference will be focused on two…

On 23 April, Andreas Häuselmann defended the thesis 'EU privacy and data protection law applied to AI: unveiling the legal problems for individuals'. The doctoral research was supervised by Gerrit-Jan Zwenne and Bart Custers.

Jens Iverson, Assistant Professor of International Law and a Researcher in the Jus Post Bellum Project, defended his Ph.D. dissertation on 21 September 2017.

Only 27 per cent of Dutch households are financially healthy. This appears from a joint study conducted by Deloitte, ING, NIBUD and the Department of Economics of Leiden University.

In this article, the authors explore why there is substantial cross-national variation in the level of regulatory clarity surrounding cryptocurrencies

Courses EU Tax Governance (EUTAXGOV).