On Wednesday 13 December 2017 René Hage defended his doctoral thesis entitled ‘Handhaving van privaatrecht door toezichthouders’ (Enforcement of private law by regulatory authorities).

Empirical Legal Studies has a methodological and substantive component. Our research projects use qualitative and quantitative methods for the empirical study of the intersection between law and behavior. We are interested in the interaction between empirical and normative questions.

The ability to create objects and structures with our hands has been essential to human development. This ability is something modern society is at risk of losing. Leiden archaeologists gather knowledge about ancient processes of ‘making and creating’ over the centuries, knowledge that helps our current…

This book argues that Armenians around the world – in the face of the Genocide, and despite the absence of an independent nation-state after World War I – developed dynamic socio-political, cultural, ideological and ecclesiastical centres. And it focuses on one such centre, Beirut, in the postcolonial…

In tracing the deeper historical roots of what Xi Jinping contemporarily frames as a “Chinese dream” of “wealth and power,” the article discerns key actors, events, and organizing principles in a long process toward restoring China’s deemed rightful place in the regional system.

Psychologists Anna van ‘t Veer and Eiko Fried will start a scientific integrity workshop tour after the summer, called Responsible Scholarship: Psychology. Their aim: giving the subject a more prominent position in the academic’s mind.

Steering soil microbiomes for better crop quality: the holy grail to improve human health?

This thesis focuses on the question: What is the content of mentor teachers’ practical knowledge of adaptive response to their mentee teachers’ learning?

On 7 May, Aleksandre Zardiashvili defended the thesis 'Power and dignity: the ends of online behavioral advertising in the European Union'. The doctoral research was supervised by Bart Custers and Simone van der Hof.

International trade plays a critical role in global food security, with global consumption having highly localized environmental impacts.

On 12 September 2019, Michiel Rhoen defended his thesis 'Big Data, Big Risks, Big Power Shifts: Evaluating the General Data Protection Regulation as an instrument of risk control and power redistribution in the context of big data'. The doctoral research was supervised by Prof. G.J. Zwenne and Prof.…

As a doctor, coming to a decision together with a patient: how do you do that in the best possible way? Researchers Geert Warnar and Roosmaryn Pilgram, who jointly teach a course within the MA in Dutch Studies, are entering into a virtual collaboration with the Universidade NOVA de Lisboa to find the…

A study of the technology, form, function, and use of pottery from the settlements Uitgeest-Groot Dorregeest and Schagen-Muggenburg 1, Roman Period, North-Holland, the Netherlands

This book offers readers an alternative history of the origins of the discipline of International Relations.

The Master’s Open Day on 16 March was busy at all faculties in Leiden and The Hague. Thousands of visitors from the Netherlands and abroad came to Leiden University. ‘I want to find out more about the curriculum, and taste the atmosphere,’ said Sarah from Groningen.

Building a high-quality MRI scanner at the lowest possible cost. That was the challenge Thomas O’Reilly and Karina Soemarwoto set themselves. This year, they are selling their self-built MRI scanner to their first ten customers, with many more expected to follow soon. In doing so, they hope to make…

What does it actually mean to have a “human in the loop” when an AI system makes decisions about people’s lives? And is human oversight enough to prevent things from going wrong?

In this top-rated course, you will learn how the European Union prepares and decides on policy, and how policy is transferred to member states and implemented by various authorities. It discusses the challenges of the European multi-level governance structure and the main causes of policy failure or…

Environmental organisation Greenpeace wants to see a drastic reduction in nitrogen deposition on the Netherlands’ most vulnerable nature conservation areas. This would extend beyond the nitrogen targets that the Dutch government is currently striving to meet. Rogier Kegge, Assistant Professor of Constitutional…

How and why governments engage with civil society as well as how civil society organizes itself and exerts political influence constitute the key focus of the research programme Public Governance & Civil Society. As such, this research programme offers unique expertise within the field of public administration…

Study information

On 13 June 2024, the University of Tuscia (Viterbo, Italy) hosted a doctoral seminar in the series 'Law and Artificial Intelligence', organised by the PhD programme in 'Law of European and Global Markets. Crisis, Rights, Regulation' and coordinated by Professor Rosa Ruggiero.

Piecing together the urnfield mortuary process in the Lower-Rhine-Basin, ca. 1300 - 400 BC

How, when and why the EU legislates to facilitate the private enforcement of EU law before national courts.

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

Dissolution processes – next to aggregation processes - play an important role for fate prediction and environmental risk assessment of metal-based nanoparticles (MNPs). It is challenging to predict the kinetics of the dissolution process of MNPs in complex systems such as we can find in in vivo and…

Empirical Legal Studies in Leiden focused on building an interdisciplinary community of legal scholars and social scientists who collaboratively explore legal questions on the intersection of law and behaviour using a variety of methods.

Understand how the economy works and shapes today’s challenges

This book analyses the emergence of modern parties in nineteenth-century Europe and explores their connection with the slowly developing institution of democracy.

This project investigates the professionalisation of university libraries in the nineteenth and early twentieth centuries, through the lens of the medieval manuscript holdings. Taking Leiden University Library as a starting point, it sheds light on the changing practices surrounding the conservation,…

Total confusion exists as to what you can take as hand luggage on flights. Each airline has its own rules, which causes frustration among passengers. Armin Cuyvers, Professor of European Law, discussed this issue on Dutch current affairs programme ‘EenVandaag’.

Observational, cognitive and physiological measurements in social contexts.

It is difficult to imagine a society other than a hierarchical nation-state. This is in part because we neglect alternative forms from the past, argues archaeologist Lewis Borck in the Journal of Contemporary Archaeology.

From 23 to 24 February 2023, the Conference ‘The Future of the European Security Architecture: The CJEU’s decision on Passenger Name Records and beyond’ took place at the KNAW in Amsterdam.

A master's degree in Psychology at Leiden University combines theoretical knowledge with academic and professional skills, making you an attractive candidate for many employers.

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.

eLaw is a research institute of interdisciplinary scholars who explore issues at the intersection of law, technology and society.

Yvonne Erkens and Fieke Weber, both from the Department of Labour Law and Social Security, recently organised a panel discussion on behalf of the International Labor Rights Case Law Journal (ILaRC). The discussion took place during the ISLSSL World Congress in Rome and was a huge success.

In this article, Thomas Maguire, assistant professor at the Institute of Governance and Global Affairs, examines the intelligence of the US, British and Ukrainian governments and NATO partners concerning Russia and its war against Ukraine. This article discusses how and why governments communicate intelligence…

Rembrandt painted the portraits of more Leiden alumni than we can show in the route. Discover who else posed for Rembrandt.

The global agri-food system plays a critical role in food security and environmental issues.

Research into the evolutionary backgrounds of our diets can help us make the right choices in diet, health and lifestyle.

In order to deepen your knowledge of psychology, Leiden University encourages you to continue your studies with a master programme.

People come to court because of a legal dispute, and often think that the court decision will also resolve the underlying conflict. But that is not always the case. ‘Court decisions should provide a better response to the needs and the nature of citizens,’ argues professor by special appointment Rogier…

Dimiter Toshkov, Associate Professor, Brendan Carroll, Assistant Professor, and Kutsal Yesilkagit, Professor International Governance, of Leiden University, wrote an article for the Washington Post about the European governmenets that acted quickly in times of a pandemic. And these governments are…

Supermarkets collect valuable information about their consumers from loyalty cards. Gerrit-Jan Zwenne, Professor of Law and Digital Technologies, tells online science magazine Quest: 'Consumers underestimate the value their data holds for supermarkets.'