The Koninklijke Hollandsche Maatschappij der Wetenschappen (Royal Holland Society of Sciences and Humanities) has appointed Koen Caminada, Professor of Empirical Analysis of Tax and Social Policy, as a member.

To improve our teaching and reward excellent teaching assistants, the institute offers a Teaching Assistant Prize to the best teaching assistant of the semester.

Anyone who has taken a walk through the centre of Leiden before might have come across him, an attentive group of tourists gathered around. After studying history, Koen van Toen, or Koen Marijt, started his own business. He now organises historical walks, among other things.

On Monday 21 November a lecture was given at Leiden Law School of Leiden University by Belgian Minister of Justice Koen Geens and Dutch Minister of Justice and Security Ard van der Steur in which they talked about international judicial cooperation. The lecture focussed on cooperation between the Netherlands…

Leiden University, Department of Economics

The book 'Dutch Income (Re)Distribution, trends 1977-2019' was published on the 14th of October. Files related to the project can be downloaded via this website.

The LIAS Office conducts the Institute's administration. Please feel free to stop by for information or assistance.

Improvements of weak gravitational lensing shape measurements are presented and some used for data analysis.

The deans (chairs of the faculty boards) form the Board of Deans, which is chaired by the Rector Magnificus.

Contact details and staff overview of the Leiden University Graduate School of Governance and Global Affairs

These are the staff members of the Leiden - Latin America and the Caribbean Centre

This Festschrift in honour of Cary J. Martin

On Wednesday 11 June 2025 Steffie van Gompel successfully defended a doctoral thesis and graduated.

The LIAS Office conducts the Institute's administration. Please feel free to stop by for information or assistance.

Please feel free to stop by for information or assistance.

Leiden Budget Incidence Fiscal Redistribution Database (2011), assembled by Chen Wang and Koen Caminada (Version 1, August 2011), presents the disentanglement of income inequality and the redistributive effect of social transfers and taxes in 36 LIS countries for the period 1970-2006.

Leiden LIS Budget Incidence Fiscal Redistribution Dataset on Income Inequality (2017), assembled by Jinxian Wang and Koen Caminada (Version 1, November 2017), presents the disentanglement of income inequality and the redistributive effect of social transfers and income taxes in 47 LIS countries for…

Leiden LIS Budget Incidence Fiscal Redistribution Dataset on Relative Income Poverty Rates (2019), assembled by Koen Caminada and Jinxian Wang (Version 1, February 2019), presents the disentanglement of relative income poverty measurers and the anti-poverty effects of social transfers and income taxes…

Hieratic Papyrology

Promotor: K.H. Kuijken

Caminada et al. examine elderly poverty across 16 European countries (2005-2022).

A warm welcome to the Graduate School of FGGA at Leiden University.

The Sun and all the stars in the night sky reside in the Milky Way galaxy. In the at-rest reference frame of the Galaxy, typical stars travel with velocities of about 100-200 kilometres per second.

The Women of Ramesside Deir al-Medina

Since the global COVID-19 pandemic, the coronavirus responsible (SARS-CoV-2) has been extensively probed for promising protein targets to establish drug-based therapies.

We explored the Universe using weak gravitational lensing, a phenomenon that occurs when light from distant galaxies is bent by the gravitational fields of closer cosmic objects, much like how a lens distorts light.

In this thesis, the research focuses on the properties of dark matter and dark matter haloes and how they connect with the galaxies we can observe in the Universe.

Promotor: K. Kuijken, Co-Promotor: H. Hoekstra

Galaxies form and live inside dark matter haloes. As a consequence, they are exposed to the tidal fields generated by the surrounding matter distribution: this imprints a preferential direction to the galaxy shapes, which leads to a coherent alignment on physically close galaxies, called intrinsic a…

Of all the mass in our Universe, 80% is thought to consist of a hypothetical and invisible substance called dark matter (DM).

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.

Just published:

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