On 8 September 2022, Valentina Carraro presented a paper during the annual conference of the Italian Political Science Association (SISP), Rome.

On 16 September, Valentina Carraro presented her work 'The Effects of Covid-19 on Violence' at the Conference of the Italian Political Science Association (SISP) in Genoa, Italy.

Leiden researchers Arko Ghosh and Enea Ceolini analysed the usage data of hundreds of mobile phones and discovered that our body has rhythms ranging between 7 and 52 days. These cycles influence how we behave. Their research resulted in an article in npj Digital Medicine journal, a Nature Portfolio…

Huiselijk geweld is een ingrijpend probleem in Nederland, met jaarlijkse fatale gevolgen. De impact gaat verder dan alleen de slachtoffers zelf en raakt ook nabestaanden en de samenleving als geheel. Tot nu toe/Momenteel ontbreekt het echter aan een gestructureerde manier om fatale gevallen systematisch…

In September 2017 the Institute of Political Science (Leiden University) will launch a new bachelor’s programme: International Relations and Organisations (IRO). It will taught in English and be based in the city of The Hague. The three-year IRO programme is aimed at international, as well as internationally-oriented…

Writing a master’s thesis in Political Science is a demanding yet rewarding journey. Every year, students deliver impressive research that showcases their analytical skills and academic rigor. This year, one thesis stood out for its exceptional quality. On 31 October 2025, during the master’s graduation…

A month after the event, we can say the inaugural lecture of Prof. Luuk van Middelaar on “The European Union and the politics of events”, on 23 September 2016, has obtained good coverage in the Dutch national media.

MA International Relations: Culture and Politics student Annick van Rinsum created a play as a method to research her master’s thesis. “Through writing this play, I aim to contribute to our understanding of International Relations Theory. I’m specifically interested in the question how our theories…

In this article, Seda Gürkan & Rosa Sanchez Salgado show which emotions the Members of European Parliament (MEP) expressed in the wake of Qatargate.

Antoaneta Dimitrova, Professor Comparative Governance at Leiden University, Honorata Mazepus, Assistant professor at Leiden University and Dimiter Toshkov, Associate Professor at Leiden University, together with three other authors researched which aspects of state capacity might contribute to opening…

The research of the Applied Mathematics cluster is concerned with such diverse topics as dynamical systems, representation theory, differential equations and pattern recognition.

This article presents the findings of an explanatory study into the perceptions of Dutch Muslims in The Hague concerning pre-emptive counter-extremism and de-radicalisation policies.

Leiden University is an international, broad-based university. We distinguish five core domains for our research and teaching activities.

Can behaviour in an online economic game be understood as a representation of radicalisation propensity?

This thesis describes the development and validation of new high-contrast imaging techniques, with the ultimate goal of enabling the next generation of instruments for ELT-class telescopes to directly image Earth-like extra-solar planets orbiting around nearby stars.

This paper examines the need and possibility for developing online resilience-based approaches in response to COVID-19 vaccine conspiracies, often linked to the far right.

The Diversity and Inclusion domain consists of a three-day masterclass on Inclusive Leadership for Depolarisation (English). There are also Dutch courses on Diversity & Inclusion at the Centre for Professional Learning, Leiden University.

In the Master's programme Crisis and Security Management, specialisation Terrorism and Political Violence, we focus on the academic body of knowledge on different form of protests, contention, resistance and violence. We explore and explain the emergence of radical and extremist movement.

As a university we stand with both feet firmly in the world. Internationalisation is in Leiden’s DNA: from the very foundation of our university, the ideal of the free academy has always attracted researchers and students from across the whole world.

Ramsey Albers wins Political Science Master’s Thesis Prize 2022

Op donderdag 17 april 2025 neemt prof. dr. Marco Mostert, Hoogleraar Middeleeuwse Geschiedenis aan de Universiteit Utrecht afscheid.

Political scientists study topics that affect society, but their work often remains out of the spotlight. Not always: the research of Leiden political scientist Simon Otjes does have a visible impact.

This dissertation sheds light on politics, education and linguistic identity by studying the case of the College of Jerusalem, founded by the Brothers of the Christian Schools.

We deeply cherish our natural and cultural World Heritage, so it seems; when historical monuments and sites are destroyed by war or natural disaster, we are mourning collectively. But what if this World Heritage status is not just a preservation label, but a smokescreen for social and political conflicts…

On the brink of war, what influences decision makers to attack another country? Using innovative theoretical angles, Femke E. Bakker explores whether the basic assumptions of democratic peace theory are indeed correct. She stresses the microfoundations of conflict, questioning the assumptions on…

The Court of Justice of the European Union is facing renewed scrutiny after expanding the reach of Article 2 TEU in Commission v Hungary. In a critical analysis published on Verfassungsblog, Martijn van den Brink argues that the judgment is indicative of the suffocating grip of “EU constitutional orthodoxy”…

Sometimes fascination can lead to in-depth research. Such is the case with Wahyu Widodo, who came across the Islamic Walikutuban ritual in Java in 2019, on which he subsequently wrote his PhD dissertation. Widodo: ‘Besides community, it also breeds political loyalty’

On Monday 4 September, Professor Christopher Martinez, from the Universidad de Concepción (University of Concepción), Chile, was invited by the Department of Constitutional and Administrative Law to introduce his forthcoming book at our university.

The Hague City Council is discussing the implications for local politics of the verdict acquitting former councillors De Mos and Guernaoui of corruption. The court ruled that from a criminal law perspective there was no official bribery. The debate will mainly focus on whether De Mos' party ‘Hart voor…

During this Lunch Seminar of 20 November 2023, Ramesh Ganohariti presented his PhD research on contested sovereignty and politics of citizenship.

Five questions for James Shires, assistant professor at ISGA, about his new book, The Politics of Cybersecurity in the Middle East. The book is available to order now.

Terrorism expert Bart Schuurman has been appointed professor. As a researcher and lecturer at ISGA, he has witnessed the terrorist threat evolve and broaden. 'How can we explain these shifts and protect our society against them? That is what I want to focus on more,' he says.

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…