The number of self-employed people has risen over the past few years. Professor of Economics Olaf van Vliet explains this development in Dutch online newspaper NU.nl.

Dutch companies are cutting jobs at a rapid pace amid reorganisations. Olaf van Vliet, Professor of Economics, spoke with NU.nl about the causes of this wave of layoffs: 'Other factors besides AI seems to be at play.'

Become an expert in migration and diversity law with a multi-disciplinary focus. As societies become increasingly diverse, this programme equips you to address the legal challenges posed by global migration, understanding the law in its political, societal, and historical context.

Moritz Jesse and Daniel Carter, both members of the Europa Institute in Leiden, participated in the Conference ‘EU Citizenship and Federalism: The Role of Rights’ in November 2017.

Cell adhesion signaling

How was the racial landscape of citizenship and democracy in antebellum America characterized, and how did free Black populations in various states navigate such landscapes?

Why obey the state? Dorota Mokrosińska presents a fresh analysis of the most influential theories of political obligation and develops a novel approach to this foundational problem of political philosophy, an intriguing combination of the elements of natural duty and associative theories.

This project addresses the occurrence of political and ideological biased crimes in light of the recent migration influx in European countries.

Migration is an important topic of academic, public and political debate. Migration research generates a wealth of articles. The Journal of Migration History (JMH) is the first to specialize in the field. Articles on migration history either appear in journals that specialize on current issues, or in…

Nederland bepaalt de leeftijd van asielzoekers deels op uiterlijk en gedrag in een zogenoemde leeftijdsschouw. Verschillende experts, waaronder universitair docent immigratierecht Mark Klaassen, immigratierecht deskundige, wijzen op het belang van een zorgvuldige leeftijdsvaststelling. Dit is nodig…

Nederland bepaalt de leeftijd van asielzoekers deels op uiterlijk en gedrag in een zogenoemde leeftijdsschouw. Verschillende experts, waaronder universitair docent immigratierecht Mark Klaassen, immigratierecht deskundige, wijzen op het belang van een zorgvuldige leeftijdsvaststelling. Dit is nodig…

Many countries and regions face a wide variety of challenges resulting from migration and mobility. Solutions that have been formulated range from policies and regulations for immigration, to education and stimulating social participation, to restructuring the welfare state. These challenges and policies…

Master, PhD

From March 2023, political scientist Katharina Natter (Leiden University) will lead part of an ambitious project called PACES, funded by Horizon Europe and coordinated by Simona Vezzoli (ISS). PACES is an innovative, inter-disciplinary and multi-level research project that offers a groundbreaking approach…

A recent study shows that immigrants in the Netherlands earn 15 per cent less on average than their colleagues without a migrant background. Olaf van Vliet, Professor of Economics, comments on this pay gap in ‘de Volkskrant’ newspaper.

Social scientists from Leiden University have worked with an international team to create teaching modules on migration.

Dr. Moritz Jesse, Associate Professor European Law at the Europa Institute, gave a lecture about Migration and Asylum on Thursday 22 February 2018.

Youth unemployment in the Netherlands has risen sharply in recent years, though many vacancies cannot be filled. Olaf van Vliet, Professor of Economics, spoke to NU.nl about the issue: ‘Youth unemployment has consistently been higher than the overall unemployment rate.’

Elif Naz Kayran and Anna-Lena Nadler have received the European Political Science Review (EPSR) Prize for early career scholars.

On 28 November 2025, Leiden University and PLNT Leiden hosted “The Knowledge Orchard” - an event aimed at starting up/ enhancing interdisciplinary cooperation between academics at Leiden University, and improving collaboration between Leiden researchers and external partners in research and educatio…

This dissertation aims to advance understanding of amoeboid single cell migration under the influence of changing physicochemical environmental properties. The particular focus is on the relatively unknown influence of differing physical properties in the extracellular environment, such as the migratory…

Emily Wolff, PhD candidate at Leiden University, wrote a paper about the inclusion of imperial citizens in the Dutch post-war welfare state.

This third issue of Ex Novo gathers multidisciplinary contributions addressing mobility to understand patterns of change and continuity in past worlds; reconsider the movement of people, objects, and ideas alongside mobile epistemologies, such as intellectual, scholarly or educative traditions, rituals,…

This article examines how immigration from Central and Eastern Europe influences political support for Eurosceptic parties.

A warm welcome to the Graduate School of Social and Behavioural Sciences at Leiden University.

Connecting scientific fields, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. What did the university achieve in 2024? A small sample.

On 12 November, Clare Fenwick defended her doctoral thesis, The Political Economy of Immigration and Welfare State Reform: A Collection of Comparative Political and Economic Essays on Human Mobility and Social Protection. The PhD research was supervised by Olaf van Vliet and Kees Goudswaard.

Are you a teacher (history, social studies, religion, philosophy, geography, etc.) and do you have questions about the relationship between citizenship and Islam? Consider joining NIMAR's study trip to Morocco.

This pioneering project will answer this question by examining migrants through the eyes of the courts between 1600 and 1900. It aims to reveal patterns of continuity and change in: 1. Treatment of migrants by criminal courts; 2. Violence and conflicts between migrants and native born.

The Netherlands-Flemish Institute in Cairo (NVIC) and the Amsterdam Centre for Migration and Refugee Law (ACMRL) of the VU University Amsterdam organise a public seminar about global migration and refugee law in Egypt and Morocco, focusing on the International Convention on the Rights of Migrant Workers…

On 21 April 2022, the Democracy and Citizenship thematic stream organized a seminar which focused on the question of citizenship under conditions of global crises. Three researchers presented their work during this seminar: Marion Collewet “Participatory Value Evaluation of policy options for the…

Due to its economic prosperity, its policy of (relative) religious tolerance, and its large numbers of migrants, the Dutch Republic has long had a reputation of being the prime example of ‘tolerance’, especially during the seventeenth century. Although the great variety of newcomers in the Dutch Republic…

This subproject examines how memories of flight and persecution shaped new social and religious identities in the Netherlands.

Conference

The first ILS Lunch Seminar of 2017 will take place on Monday 30 January. During this lunch seminar series all researchers from Leiden Law School can present their research. The idea is to hear in a simple and nice way what researchers from other research programs and institutes are working on. During…

What is the relation between the experience and the act of exclusion?

This research examines how punishment and deterrence is articulated and expressed in the management of migration in Mexico.

From 11 to 21 June 2019 eleven students took part on the Honours summer course Dilemma’s in het migratierecht (Dilemmas in migration law).