In memory of Andrea Evers, Professor of Health Psychology, the Prof. Andrea Evers Fund for Health, Behaviour and Society has been established. With this fund, we aim to honour her deepest wish: to continue research that contributes to health, well-being, and a resilient society.

This Think20 (T20) policy brief recommends the introduction of a

Does a drug enter into the human brain once administered in the body?

The electrochemical reduction of a group of organic compounds on platinum is strongly dependent on the arrangement of the atoms in the platinum surface. Christoph Bondue, postdoc in Marc Koper's group, published this in Nature Catalysis on 4 March. The reduction of such compounds is an important process…

How did changes in the composition and exploitation of princely domains in various principalities of the Low Countries influence the development of ‘modern’ public finance systems, including the notion of public debt?

ADHD&me is a new cognitive-behavioural therapeutic intervention for young adults (16–25 years old) with ADHD, specifically aimed at improving self-esteem. In this study, we are conducting a Randomized Controlled Trial (RCT) to examine whether this intervention improves self-esteem and whether related…

This article by Danielle Goldwert, Sara Constantino, Jaroslaw Kantorowicz and colleagues presents one of the largest behavioral 'megastudies' to date, testing how different interventions can stimulate public, political and financial climate advocacy.

Since September 2020, Karline Janmaat has been an associate professor of Cognitive Behavioral Ecology at the Cognitive Psychology Section of the Institute of Psychology and the Institute of Biology at Leiden University and the ARTIS Zoo in Amsterdam.

Health psychologist Andrea Evers has been invited by several Dutch and international media to talk about the coronavirus and the measures taken by the government with regard to public health.

As chief economist, Bolhuis will conduct research on topical economic issues. Besides this position, he will remain active as a lecturer at the Department of Economics at Leiden Law School.

The effects of anthropogenic noise on interactions between predators and their prey are still little understood.

The Netherlands cannot stop European labour migrants coming here. Nor does The Hague have much influence on the influx of asylum seekers. But experts believe that we should be able to reduce the need for labour migrants by using intelligent economic policies.

On the 15th of April, Shaoyu Wang successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Shaoyu on this achievement!

Taking part in TikTok challenges, online gambling, and forwarding nudes. ‘Why do adolescents take online risks?’, psychologist Neeltje Blankenstein wonders. Her research on online risk taking has been awarded a Veni grant by the Netherlands Research Council (NWO). Read her answers to five questions.

Gert Renkema, Head of Financial Economic Affairs/Business Controller of FGGA, tells us how the faculty is doing

We are pleased to invite abstracts for a conference on ‘Advancing Social, Economic, and Cultural Rights in a Polarised, Digitalised, and Unequal World’ to be held at Leiden University on 4 and 5 September 2025, in collaboration with Netherlands Network for Human Rights Researh (NNHRR).

Young people tend to take more risks than children or adults. This trend is related to the reward centre in the brain, which is much more active when they are rewarded, PhD candidate Barbara Braams discovered. Personality, testosterone levels and social context also play a role in risk-taking.

Neeltje Blankenstein receives an LUF grant to conduct research on online risk behaviour among young people. What risks do young people take online and why? 'With this research, we not only want to help prevent serious risk behaviour, but also understand what drives young people to it.'

This research project addresses the ethical challenges and legal gaps regarding the operations of MNCs in conflict zones.

Each scientific institute has its own dynamics. The Executive Board is visiting the different institutes to find out what is going on there. On 11 March, staff at the Institute of Tax Law and Economics talked to the Board about their teaching and research. What is going well and what are the challen…

Employer organizations have been presented as strong promoters of the liberalization of industrial relations in Europe. This article, in contrast, argues that the preferences of employers vis-à-vis liberalization are heterogeneous and documents how employer organizations in Spain, Italy, and Portugal…

Who had a say in making decisions about the natural world, when, how and to what end? How were rights to natural resources established? How did communities handle environmental crises? And how did dealing with the environment have an impact on the power relations in communities?

In the thesis the dynamics of strategies is studied from two perspectives.In the first part of the thesis strategies are considered to be opinions present in a community.

Fishes rely heavily on sound to find their way during migration or dispersal. Many species are affected by noise pollution. Hans Slabbekoorn from the Institute of Biology Leiden received a HORIZON2020 grant of 500,000 euros to study the impact of sound conditions on movement decisions of fishes.

Peer-mentored cognitive behavioral therapy for adolescents with mild intellectual disability and anxiety disorder

The department of Financial and Economic Affairs at FGGA is always busy with…..finances. It is an important department that impacts, directly or indirectly, everyone working at FGGA. Yet, for many of us, it is not always clear what it is that Gert and his team actually do. What is the financial status…

How to explain variation in the extent to which parliamentary voting behaviour follows the government–opposition divide? Party Politics article by Tom Louwerse et al.

Zafira obtained her Master's Degree in Economic and Consumer Psychology from Leiden University in 2018. Upon completing her Master's Degree, Zafira starting working as a lecturer at Universitas Gadjah Mada (UGM), Indonesia. As of September 2021, she is taking a leave from UGM to pursue her PhD at Leiden…

Does the sitter have agency in the making of a photographic portrait? And if so how?

Governments are increasingly facilitating the roll-out of so-called “smart meters”, a technology for measuring energy consumption that are able to transmit and receive data using a form of electronic communication. However, implementation has been slow or even stalled.

In the public debate on the coronavirus, bold assertions from academics, doctors and other medical practitioners are often heard. For example, that the coronavirus would be no more deadly than the flu. Or that measures to combat the virus like wearing face coverings are unnecessary.

A neuro-ecological perspective on adolescent prosocial development

Ariadne Schmidt is professor by special appointment of the History of urban culture, in particular of Leiden (the Magdalena Moons Chair, funded by the Magdalena Moons Chair Foundation) and associate professor Economic and Social History. She is also Chair of Education of the bachelor, master and research…

Promotor: Prof.dr. G.R. de Snoo, Co-promotor: R. Heijungs

Promotor: S.M. Verduyn Lunel, Co-promotor: O. van Gaans

If you replace the standard hydrogen atoms in ice with a heavier variant, something odd happens. The volume occupied by the molecules increases by 0.1 per cent. Leiden chemist Jörg Meyer and his colleagues have created a theoretical model that describes this behaviour. Their research appeared on the…