This research cluster centres on regional, national, and global intersections between a variety of artistic and cultural expressions and their role in society from 1800 onwards.

Dark matter is one of the biggest mysteries of the Universe. Its properties cannot be explained with the known laws of physics and elementary particles.

The physical origin of the dozens of stellar-mass binaries, the mergers of which have been detected by the LIGO-Virgo-KAGRA collaboration via gravitational waves, is still unknown.

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

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Promotor: Koen Kuijken Co-promotor: Henk Hoekstra

The institute is funded by the Ministries of Education, Culture and Science and of Foreign Affairs and by Leiden University. To safeguard the institute’s independence and interests in Morocco, it is part of the Netherlands Embassy in Rabat under Moroccan law. The institute performs its tasks under the…

Galaxy intrinsic alignments induce a major astrophysical contamination to weak gravitational lensing measurements and need to be modelled and mitigated when extracting cosmological information from such measurements.

Promotor: Prof.dr. K.H. Kuijken, Co-Promotor: Dr. H.Hoekstra

One of the most important puzzles in modern astrophysics is the nature of dark matter.

The high velocity tail of the total velocity distribution of stars provides essential insight into fundamental properties of the Galaxy.

In the master’s specialisation in Economic and Consumer Psychology, students study the psychological mechanisms that underlie many of our choices and decisions concerning consumption and other economic behaviours.

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.

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

Receiving welfare benefits has a major impact on criminal behaviour. This has been demonstrated by Marco Stam, who defended his thesis on 20 January 2022.

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).

Who is Economic Man? Every economic paradigm presupposes an anthropology, a theory of human nature. This project explores the anthropologies presupposed and produced by ancient Greek economic texts, and the specific knowledge forms that shape these anthropologies.

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?

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…

The unemployment replacement rate data set, assembled by Olaf Van Vliet & Koen Caminada (version 1, January 2012), provides data on unemployment benefit schemes in 34 welfare states from the 1970s until 2009. The current data set includes all 27 member states of the European Union and 7 non-EU OECD…

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…

Tuberculosis is a major global health problem caused by the Mycobacterium tuberculosis complex, claiming more than a million lives annually.

We are a dynamic research group at the Leiden Institute of Physics. Our aim is to explore and understand quantum materials, including strange metals, high-temperature superconductors, and quantum critical electron matter.

We are interested in understanding the mechanics of soft materials, of which biological materials are prominent examples.

The Graduate School of Governance and Global Affairs offers PhD programmes that address the pressing societal challenges of our time.

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

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

Twice a year, Gert Renkema, Head of Financial Economic Affairs at FGGA, shares insights about the processes and financial matters for our faculty.

Psychology graduates acquire skills useful in a variety of jobs. Whether helping people with mental disorders, researching the brain or deciding who should be hired at a company, psychologists can do it.

On 4-5 December the Europa Institute and the Faculty of Governance and Global Affairs of Leiden University organize a conference on the Transatlantic Trade and Investment Partnership (TTIP).

Considering the ways in which the ‘global turn’ is changing the theory and practice of historical disciplines, Explorations in History and Globalization engages with the concept and methodology of globalization, challenging traditional divisions of space and time to offer a range of perspectives on…

Today over 1000 chief executives and more than 40 world leaders meet in the Swiss village Davos to discuss the world's issues of today. What is the importance of the conference and what is the actual effectiveness? Dr. Alexandre Afonso, assistant professor in the Department of Public Administration,…

The Southern African Development Community (SADC) and the Federal Republic of Germany solidified their commitment to collaborative development with the signing of the SADC-German Framework Agreement on Development Cooperation.