Voting Advice Applications represent popular election campaign tools in many countries, enabling voters to discover which party or candidate provides the best match with their political preferences. Political scientists Martin Rosema (University of Twente) and Tom Louwerse (Leiden University) examine…

The second major collection of papers from the Bridging the Unbridgeable project.

This project analyzes to what extent hodegetical textbooks relied on each other in warning their readers against vicious habits, how much continuity their catalogs of vice displayed, and to what extent vices that persisted throughout the 18th and 19th centuries were associated with easy-to-remember…

The CML Institute's Council (IC) consist of seven persons representing staff and students who are working in our institute. The council advises the management team on a broad range of topics that concern all CML staff members: financial matters, research programs, education and strategic outlines.

Sarah Giest, Assistant Professor at Leiden University, and Ishani Mukherjee researched the topic of 'Behavioural Insights Teams (BITs) and Policy Change: An Exploration of Impact, Location, and Temporality of Policy Advice'.

How can the university decide which partners to work with and why? This is a question many of us have, both within and outside our community. The advice presented by the Temporary Committee on Assessing Ethical Aspects of Collaborations should provide answers.

Arco Timmermans, professor by special appointment in Public Affairs at the Institute of Public Administration, is co-editor of this book focused on comparing engagements in policy advisory systems.

A quarter of all Dutch students suffer burn-out symptoms, and an even greater percentage regularly experience emotional exhaustion and tiredness. At a symposium on 7 May students were given tips for handling stress.

The Dutch Advisory Committee on Public International Law has, on its own initiative, provided advice to the Dutch government regarding the duty of third states to prevent genocide under the Genocide Convention. The Committe's advice addresses the legal uncertainty in political and societal debates about…

On 2 April 2025, Anna Marhold, a member of the Peace and Security Committee of the AIV and Assistant Professor at the Grotius Centre for International Legal Studies, joined a technical briefing to parliament providing advice on hybrid threats and societal resilience.

At the annual conference of the Nederlandse Vereniging voor Wetgeving (the Dutch association for legislation) that was held in the Auditorium of the Ministries of Internal Affairs and Kingdom Relations and Justice and Security in The Hague on Thursday 6 October, Gert Jan Geertjens defended the draft…

The Executive Board of Leiden University has asked the University Council to advise on its proposed decision to reactivate the person counters/sensors in due course. The Council will now look at this carefully before the Board makes a final decision. The advice of the University’s participation body…

The more than 370 sensors that have been hung up in Leiden University buildings to count the people present will not be switched on again. The equipment will eventually be removed from the buildings.

The level of congruence between parties and their voters can vary greatly from one policy issue to another, which raises questions regarding the effectiveness of political representation. We seek to explain variation in party–voter congruence across issues and parties.

Leiden University is announcing its approach to sensitive collaboration with external partners.

Emeritus professors Dirk van Delft and Frits Berends both channelled their inner Sherlock Holmes as they delved into the life and work of the great physicist Hendrik Lorentz. Their voluminous biography ‘Lorentz: gevierd fysicus, geboren verzoener’ (Lorentz: celebrated physicist, born mediator) is published…

Leiden University is the first Dutch university to join the Healthy Universities international network. Lifestyle workshops, rewards for good behaviour and the latest interventions encourage students and staff to live more healthily. The experiences gained through this network will be used in scientific…

The AI chatbot ChatGPT has a clear left-liberal bias when filling in the Stemwijzer voting advice application. This was discovered by master's student Merel van den Broek during an assignment for the Machine Learning for Natural Language Processing course.

What practical steps can we take to resolve cross-border claims to looted art and prevent illicit trafficking in cultural goods? That's what the European Parliament asked Leiden legal scholar Evelien Campfens. Her advice: develop a registration system, issue art with a ‘passport’ and set up a European…

Many of the big challenges of the 21st century (climate change, international migration, financial instability, socio-economic inequality) find their origins in the organisation of the global economy. Any solution to the world’s big challenges therefore requires forceful policy interventions at the…

On 17 October Melanie Fink and Jorrit Rijpma spoke at the 17th meeting of the Consultative Forum of the European Border and Coast Guard Agency (Frontex) in Warsaw.

Many important topics in computer science, such as the correctness of software, the efficiency of algorithms and the modeling of complicated systems, depend on sound theoretical underpinnings. In the Theory group, we study these fundamental building blocks and develop verification methods to prove system…

De Universiteit Leiden vindt de aanpassing van het bindend studieadvies geen verstandig plan.

Professor of Developmental Biology Christine Mummery and chemist Dr Dennis Hetterscheid have each been awarded an ERC Proof of Concept grant. These grants are to explore the societal potential of ideas generated in previous ERC-funded projects.