Complex systems can be characterized as systems in which multiple components interact with each other, often in non-linear ways. The main goal of this research will be to investigate if and how the international tax system can be defined and modelled as a complex system. Approaching the international…

Peak Performance: Collaborative Crisis Management Before and During International Summits. This comparative case study probes into conditions for collaborative governance in the security organisation of international summits.

On 19 juni 2018 Matthew Gillett defended his doctoral thesis ‘Prosecuting environmental harm before the international criminal court’. His supervisor is prof. dr. L.J. van den Herik.

PhD defence

The Ghent Rolin-Jaequemyns International Law Institute (GRILI) is a research institute within the Faculty of Law at Ghent University. Founded in 2015 at the initiative of Prof. Tom Ruys, the Institute brings together the existing expertise within the law school in the broader international law domai…

Organisations like the UN and the EU should be given more powers to combat transboundary problems. This is the message of a report published by the Swedish SNS Democracy Council, whose authors include Prof. Jan Aart Scholte of Leiden University. The researchers also wrote the following article.

The International Financial Law programme of Leiden University looks at financial law from multiple perspectives to illustrate the links between law, economics and ethics.

On 2 September 2022, 300 students received their Bachelor Diploma of International Studies. The students were awarded their diplomas in the historic Pieterskerk in Leiden, in front of a large audience of family and friends. With about 1000 people present, including the graduates, the International Studies…

Since Russia’s invasion of Ukraine in February 2022, the European Union (EU) and its Member States have adopted wide-ranging legal and political measures to support Ukraine in its struggle.

The International Court of Justice (ICJ) has commenced hearings on Israel’s ban on UN organisation UNRWA. Larissa van den Herik, Professor of Public International Law, commented on news programma NOS Nieuws.

On the 14th December 2016, Steven L. Schwarcz, Stanley A. Star Professor of Law and Business at Duke University School of Law gave the thirteenth Hazelhoff Guest Lecture. Professor Schwarcz questioned the often-heard assumption that systemically important financial institutions engage in excessive…

Beatrice Noun (alumna BA International Studies) currently lives in Paris and works for the World Bank as a consultant while doing a master’s degree at Sciences Po in International Development. We caught up with her and asked her a bunch of questions like which steps lead her to this career path? And…

Labour law is constantly changing. Concurrently, the laws dealing with workers address fundamental issues which are invariably of major significance and value. The research carried out at the Department of Labour Law and Social Security focusses on both the (constant) changes in labour law and social…

Han De Jong gave an overview of (the run-up to) the current economic crisis and discussed which steps could be taken to resolve this crisis.

On Friday 29 August 2025, 370 students received their Bachelor's degree in International Studies. The diplomas were awarded in the historic setting of the Pieterskerk in Leiden. Family members, friends, and staff gathered to celebrate this joyous occasion with the graduates in a packed Pieterskerk.

Twelve weeks of hard work later, the big moment has finally arrived: the third-year students of International Studies are ready to complete the 'Practising International Studies' (PRINS) consultancy programme by pitching their advice. We were invited to attend the presentations on behalf of Free Press…

Are you interested in the BA programme International Studies but not yet sure what it all means?

PhD defence

The Department of Civil Law is responsible for education and research in the field of civil law. We teach the master’s degree programme Civiel Recht (Civil Law LL.M.), attracting many students each year from Leiden and elsewhere.

The Department of Business Studies provides business scientific education for students of the Faculty of Law, as well as for students from other faculties of Leiden University.

Below you will find a collection of books, other than those in the BLRN book series, to which members of BLRN have contributed.

The South China International Economic and Trade Arbitration Commission (also known as Shenzhen Court of International Arbitration, or

On 28 February 2019 the Stichting Bob Wessels Insolvency Law Collection will hold a PhD workshop on European/International Insolvency Law to which PhD students form Europe and beyond are invited. It provides PhD students with a venue to present their ideas, but also the challenges and questions they…

The programme International Financial Law consists of 8 courses and writing a thesis. The courses are accompanied by assignments and practicing oral presentations.

On 13 October 2021 Ross Spence defended the thesis 'Collateral Transactions and Shadow Banking'. The doctoral research was supervised by Prof. M. Haentjens and Prof. A.M. Pacces (UvA).

Deze onderzoeksgroep richt zich op het thema ondermijning en financieel-economische criminaliteit, in het bijzonder de aanpak ervan op een aantal deelterreinen.

We are pleased to invite abstracts for a conference on ‘Counterclaims in International Law’ to be held at Leiden University on 27 June 2024, in collaboration with Queen Mary University of London.

Chrisandya Sinurat (Sandy), an alumnus of the International Civil and Commercial Law Program from Leiden University, has been awarded the gold medal in the research competition of the International Insolvency Institute’s (III) 2024 Prize in International Insolvency Studies. Sandy was honoured to be…

On 11 June 2023, the International Insolvency Institute (III) announced its 2023 prizes in International Insolvency Studies during its 23rd Annual Conference in Amsterdam. Raghav Mittal from Leiden University was honoured to be a recipient of the Bronze Medal for his paper on Equity retention in SME…

Women In International Security (WIIS) is a global organisation dedicated to advancing the leadership and professional development of women in the field of international peace and security. As part of her research on women, peace and security, Dr. Vanessa Newby at the Institute for Security and Global…

The Institute of Criminal Law and Criminology’s ‘Vulnerable Groups and Inequality’ research project draws on a number of disciplines.

What legislative and regulatory questions arise when children, adolescents or elderly people use the Internet?