The study of tax law covers the tax system in its full width. It includes domestic, international and European tax law.

On Tuesday 19 December 2017 Anneloes Kuiper-Slendebroek defended her doctoral thesis 'Rechter over Grenzen' which deals with the application and interpretation of international law in Dutch private law. Supervisor is Martijn Polak, co-supervisor is Jeroen van der Weide.

The rise of authoritarianism, the strengthening of the radical right, and the role of the EU in defending democracy—these are just a few of the issues causing concern today. Is the EU capable of defending democratic values within the Union and beyond its borders? In an interview from the Lithuanian…

How did colonial law work to turn people into property? This project argues that colonial ideas about households and domestic authority were critical to legal processes of enslavement in the early modern Dutch empire. Using colonial court records from Dutch Brazil, Suriname, and the Moluccas, the project…

Successfully completing a master’s thesis in Political Science is no small feat. Not only is this for most students the most extensive and in-depth research report they have ever written, the work is also held to very high standards. Yet, every year students manage to impress their instructors and demonstrate…

The French political theorist Hélène Landemore has been appointed as the new Cleveringa Professor. She will deliver her inaugural lecture on 26 November.

In this paper, Kantorowicz argues that reverse party favoritism exists. He exploits the fact that during the SARS-CoV-2 pandemic crisis, the Polish government was keen to launch postal voting in the presidential elections scheduled for May 2020.

This article examines the effects of introducing proportional representation (PR) in Polish local elections on women’s political representation.

There are a number of problems in philosophy that seem to share a similar possible solution: 'Why do promises and contracts bind?', 'Why ought citizens and judges obey the law?' and 'Can we realize the gains to be made from cooperation?'. All three problems (as well as some others) share a possible…

Tom Long (2022). A Small State’s Guide to Influence in World Politics. Oxford University Press. ISBN: 9780190926212, 240 pp. (hardback), £19.99.

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The emergence of the Köprülü household that imprinted its stamp on the latter half of the seventeenth century in the Ottoman Empire. What is the power struggle they carried out against Ottoman dynastic power?

In an opinion piece in Dutch newspaper NRC, Corné Smit, teaching and research staff member at the Department of Constitutional and Administrative Law, discusses the possibilities and possible advantages of a minority government.

The King’s Speech delivered by King Willem-Alexander on the third Tuesday of September in 2017 will be written by an outgoing cabinet. What effect will this have on its content? Professor Arco Timmermans (Public Affairs) and public administration expert Gerard Breeman analysed other King’s Speeches…

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The Kroese-Duijsters symposium will be held in the Gorlaeus Building of the Faculty of Science.

This PhD dissertation examines international responsibility for the crime of aggression from a public international law perspective. Under customary international law, as well as the amendments to the Rome Statute of the International Criminal Court adopted in the Review Conference in Kampala in 2010,…

The 3rd International Workshop on Klinefelter Syndrome, Trisomy X, and XYY will be held at The Academy Building, Rapenburg 73, Leiden. It is situated in the city center, close to hotels, restaurants and attractions.

Terrorism experts Daan Weggemans (Leiden University) and Beatrice de Graaf (Utrecht University) conducted one of the first scientific studies on the societal reintegration of jihadist former detainees. They showed that the reintegration process isn't without problems. Their conlusions are presented…

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This volume considers the military architecture and its impact on local communities in Rome's eastern frontier, which stretched from the north-east shore of the Black Sea to the Red Sea.

Promotores: F.H. van Lunteren, F.P. Israel

In 2025, GTGC co-organised with the City of The Hague and the Hague Humanity Hub a Just Peace Festival, a vibrant platform on the pressing global challenges of peace with justice. The festival involved a wide range of different activities, including dialogues, exhibitions, performances, film evenings,…

In Uprooting the Diaspora, Sarah Cramsey explores how the Jewish citizens rooted in interwar Poland and Czechoslovakia became the ideal citizenry for a post–World War II Jewish state in the Middle East. She asks, how did new interpretations of Jewish belonging emerge and gain support amongst Jewish…

This article written by Marieke Liem & Alexander Kamprad investigates the relationship between terrorism and interpersonal violence. They conducted cross-national analyses on the effects of terrorism mortality rates on homicide rates. Results showed that terrorism appears to be robustly and positively…

Surreal Geographies recovers a forgotten archive of Holocaust representation. Examining art, literature, and film produced from the immediate postwar period up to the present moment, Kathryn L. Brackney investigates changing portrayals of Jewish victims and survivors.

Leiden is part of the worldwide network of research centres dedicated to the research of Austrian Studies.

The image of the European Union (EU) as a remote law-making machine is widespread. Quite often journalists and politicians deliberately depict ‘Brussels’ as bureaucratic, even undemocratic, bypassing its citizens. And many of us buy into that image. Nikoleta Yordanova, Anastasia Ershova and Aleksandra…

Take a walk through any city, and you are likely to come across a brightly coloured mural. Although these paintings often seem to serve solely as a backdrop for Instagram snapshots, art history professor Minna Valjakka says there are rich traditions and intricate histories that uncover more critical…

Turkish politics was shaken by the arrest of Istanbul mayor Ekrem İmamoğlu, along with dozens of others from the main opposition party.

Alumnus Stan van Haasteren went to Northern Ireland in 1995 as a freelance journalist with a guitar strapped to his back and recently wrote a book about his experiences in Belfast. ‘The big difference with then is that today there is no more violence. But it's still a divided city.’

In recent years, freedom of movement within Europe has come under increasing pressure as a result of transboundary crisis situations. In his inaugural lecture on 22 October, Professor Jorrit Rijpma argues that what is needed is even closer cooperation to provide the best protection.

Aileen Schuurmans finished her MA International Relations this summer. She wrote an article titled 'How to Change the Story of the Pandemic with Daoist IR', which got published on E-International Relations, the world’s leading open access website for students and scholars of international politics.

Joris Larik, Assistant Professor at Leiden University College in The Hague, was interviewed live on Al Jazeera on 2 April 2021 about the current political upheaval in The Netherlands and the difficult process of forming a new government.

Political scientists Joop van Holsteyn and Tom Louwerse (Leiden University) find that the Dutch government is having a hard time coping with referendum outcomes in general, and ‘anti-European’ sentiments among voters in particular.

Juan Masullo (Leiden University Institute of Political Science) receives a grant from the Elise Mathilde Fund/Leiden University Fund to conduct his research project ‘Forging an Anti-Mafia Culture: Observational and Experimental Evidence from Italy’. Masullo aims to find out what ordinary Italians think…

In this article for Studies in Conflict & Terrorism, the authors analyse the evolution and interplay of national policies and international diplomacy on cyber terrorism within and across the UNSC’s permanent five members and the UN process on cyber norms (GGE and OEWG).

This book offers a comprehensive analysis of China's global resurgence and its effects on U.S. dominance.